Olin Corporation
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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

---------------
Form 10-K

(Mark One)
[X]ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
ACT OF 1934
For the fiscal year ended December 31, 1998

OR

[_]TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
EXCHANGE ACT OF 1934
For the transition period from to

Commission file number 1-1070

Olin Corporation
(Exact name of registrant as specified in its charter)

Virginia 13-1872319
(State or other jurisdiction of (I.R.S. Employer Identification No.)
incorporation or organization)

06856-4500
501 Merritt 7 (Zip Code)
P.O. Box 4500
Norwalk, CT
(Address of principal executive
offices)

Registrant's telephone number, including area code: (203) 750-3000

---------------
Securities registered pursuant to Section 12(b) of the Act:

<TABLE>
<CAPTION>
Name of each exchange
Title of each class on which registered
------------------- -----------------------
<S> <C>
Common Stock, New York Stock Exchange
par value $1 per share Chicago Stock Exchange
Pacific Stock Exchange
Series A Participating Cumulative Preferred New York Stock Exchange
Stock Purchase Rights
Chicago Stock Exchange
Pacific Stock Exchange
</TABLE>

---------------
Securities registered pursuant to Section 12(g) of the Act: None

---------------
Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports) and (2) has been subject to such
filing requirements for the past 90 days.
Yes X No .

Indicate by check mark if disclosure of delinquent filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to
the best of registrant's knowledge, in definitive proxy or information
statements incorporated by reference in Part III of this Form 10-K or any
amendment to this Form 10-K. X
---------------
As of January 31, 1999, the aggregate market value of registrant's common
stock, par value $1 per share ("Common Stock") held by non-affiliates of
registrant was approximately $1,073,761,590.

---------------
As of January 31, 1999, 45,963,259 shares of the registrant's common stock
were outstanding.

---------------

DOCUMENTS INCORPORATED BY REFERENCE
Portions of the following documents are incorporated by reference in this Form
10-K as indicated herein:

<TABLE>
<CAPTION>
Part of 10-K
Document into which incorporated
-------- -----------------------
<S> <C>
Proxy Statement relating to Olin's 1999
Annual Meeting of Shareholders Part III
</TABLE>

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PART I

Item 1. Business

General

Olin Corporation is a Virginia corporation, incorporated in 1892, having its
principal executive offices in Norwalk, Connecticut. It is a manufacturer
concentrated in three business segments: Chlor Alkali Products, Metals and
Winchester. Chlor Alkali Products include chlorine and caustic soda, sodium
hydrosulfite and high strength bleach products. Metals products include copper
and copper alloy sheet, strip, welded tube and fabricated parts, and stainless
steel strip. The Metals segment also includes a network of metals service
centers in the continental U. S. and Puerto Rico. Winchester products include
sporting ammunition, canister powder, reloading components, small caliber
military ammunition and industrial cartridges. The Winchester segment also
manages government arsenals.

The terms "Olin" and the "Company" as used herein mean Olin Corporation and
its subsidiaries, unless the context indicates otherwise.

Effective February 8, 1999, Olin distributed to its shareholders all of the
outstanding common stock of Arch Chemicals, Inc. ("Arch Chemicals"), a
Virginia corporation formed to hold all of Olin's specialty chemical
businesses (the "Spin-Off").

Products and Services

The following is a list of the principal and certain other products and
services provided by Olin and its affiliates after the Spin-Off within each
industry segment. Principal products on the basis of annual sales are
highlighted in bold face.

CHLOR ALKALI PRODUCTS
<TABLE>
<CAPTION>
Major Raw
Materials
Products & Plants & & Components for
Services Major End-Uses Facilities* Products/Services
- ---------- ---------------------------------- ---------------- -----------------
<S> <C> <C> <C>
CHLORINE/CAUSTIC Pulp & paper processing, chemical Augusta, GA salt, electricity
SODA manufacturing, water purification, Charleston, TN
manufacture of vinyl chloride, McIntosh, AL
bleach, swimming pool chemicals & Niagara Falls,
urethane chemicals NY
- ------------------------------------------------------------------------------------------
Sodium Paper, textile & clay bleaching Augusta, GA caustic soda,
Hydrosulfite Charleston, TN sulfur dioxide
Salto, Brazil
- ------------------------------------------------------------------------------------------
HyPure(TM) Industrial & institutional Charleston, TN chlorine, caustic
products cleaners, textile bleaching soda
</TABLE>


- -------------------------------------------------------------------------------
* If site is not operated by Olin or a majority-owned, direct or indirect
subsidiary, name of joint venture, affiliate or operator is indicated.
Sites manufacture, distribute or market one or more of the identified
products or services.

2
METALS
<TABLE>
<CAPTION>
Major Raw
Materials
Products & Plants & & Components for
Services Major End-Uses Facilities* Products/Services
- ---------- ---------------------------------- ---------------- -----------------
<S> <C> <C> <C>
COPPER & COPPER Electronic connectors, lead Bryan, OH copper, zinc &
ALLOY SHEET & frames, electrical components, East Alton, IL other nonferrous
STRIP (STANDARD & communications, automotive, Indianapolis, IN metals
HIGH PERFORMANCE) builders' hardware, coinage, Waterbury, CT
ammunition Iwata, Japan
(Yamaha-Olin
Metal
Corporation)
- ------------------------------------------------------------------------------------------
Network of metals Electronic connectors, electrical Allentown, PA copper & copper
service centers components, communications, Alliance, OH alloy sheet,
automotive, builders' hardware, Caguas, PR strip, tube &
household products Carol Stream, IL steel & aluminum
Warwick, RI strip
Watertown, CT
Yorba Linda, CA
- ------------------------------------------------------------------------------------------
POSIT-BOND(R) CLAD Coinage strip & blanks East Alton, IL cupronickel,
METAL copper &
aluminum
- ------------------------------------------------------------------------------------------
ROLLED COPPER Printed circuit boards, electrical Waterbury, CT copper, zinc &
FOIL, & electronic, automotive other nonferrous
COPPERBOND(R) metals,
FOIL, STAINLESS stainless steel
STEEL STRIP
- ------------------------------------------------------------------------------------------
COPPER ALLOY Utility condensers, industrial Cuba, MO copper, zinc &
WELDED TUBE heat exchangers, refrigeration & other nonferrous
air conditioning, builders' metals
hardware, automotive
- ------------------------------------------------------------------------------------------
Fabricated Builders' hardware, cartridge East Alton, IL brass &
products cases, shaped charge cones, stainless steel
transportation, household & strip
recreational products
- ------------------------------------------------------------------------------------------
Olin Aegis: High All industry market segments; New Bedford, MA all metals,
performance, high computer, communications, medical, metal alloys,
reliability, industrial, instrumentation, metal matrix
hermetic metal automotive, consumer, aerospace composites,
packages for and military special alloys
microelectronics and glasses
industry
</TABLE>


- --------------------------------------------------------------------------------
* If site is not operated by Olin or a majority-owned, direct or indirect
subsidiary, name of joint venture, affiliate or operator is indicated. Sites
manufacture, distribute or market one or more of the identified products or
services.

3
WINCHESTER
<TABLE>
<CAPTION>
Major Raw
Materials &
Products & Plants & Components for
Services Major End-Uses Facilities* Products/Services
- ---------- ---------------------------------- ---------------- -----------------
<S> <C> <C> <C>
WINCHESTER(R) Hunters & recreational shooters, East Alton, IL brass, lead,
SPORTING law enforcement agencies Geelong, steel, plastic,
AMMUNITION (SHOT- Australia propellant,
SHELLS, SMALL explosives
CALIBER CENTERFIRE
& RIMFIRE
AMMUNITION)
- ------------------------------------------------------------------------------------------
Small caliber Infantry and mounted weapons East Alton, IL brass, lead,
military propellant,
ammunition explosives
- ------------------------------------------------------------------------------------------
Government-owned Maintenance and operation of U.S. Independence, MO brass, lead,
arsenal operation Army small caliber military propellant,
(GOCO) ammunition production plant explosives,
government-
supplied
components
-------------------------------------------------------------------------
Maintenance of U.S. Army laid-away Baraboo, WI subcontracted &
Production plant government-
supplied
components
- ------------------------------------------------------------------------------------------
Industrial Maintenance applications in power East Alton, IL brass, lead,
products (8 gauge & concrete industries, powder- Geelong, plastic,
loads & powder- actuated tools in construction Australia propellant,
actuated tool industry explosives
loads)
</TABLE>


- --------------------------------------------------------------------------------
* If site is not operated by Olin or a majority-owned, direct or indirect
subsidiary, name of joint venture, affiliate or operator is indicated. Sites
manufacture, distribute or market one or more of the identified products or
services.


4
Spin-Off of Arch Chemicals

On July 29, 1998 the Board of Directors of Olin approved in principle a plan
to distribute Olin's specialty chemical businesses to its shareholders as a
separate public company, Arch Chemicals, which was incorporated on August 25,
1998. The Spin-Off was effective on February 8, 1999, when Olin distributed to
its shareholders one share of Arch Chemicals Common Stock for each two shares
of Olin Common Stock held of record on February 1, 1999.

The businesses transferred by Olin to Arch Chemicals fall within three
segments: microelectronic chemicals, water chemicals and performance
chemicals. The microelectronic chemicals segment consists of the manufacture
and supply of a range of products and services to semiconductor manufacturers
and to flat panel display manufacturers. The microelectronic chemicals segment
includes a variety of high purity acids, bases, oxidizers, etchants and
solvents. The microelectronic chemicals segment has also manufactured a wide
range of photoresist and ancillary products encompassing negative, g-line, I-
line and 248nm deep UV technologies to meet the needs of the semiconductor
industry.

The water chemicals segment includes chemicals manufactured and sold and
equipment distributed on a worldwide basis for the sanitization and
recreational use of residential and commercial pool water and the purification
of potable water, including calcium hypochlorite and chlorinated
isocyanurates.

The performance chemicals segment consists of the manufacture and sale of a
broad range of products with diverse end uses. The performance chemicals
segment manufactures flexible polyols, specialty polyols, urethane systems and
glycol and glycol ethers, biocides that control the growth of micro-organisms,
hydrazine hydrates as well as propellant grade hydrazine and hydrazine
derivatives and supplies sulfuric acid regeneration services and virgin
sulfuric acid sales.

1998 Developments

In April 1998, the Board of Directors of Olin authorized the purchase of up
to 5 million shares, or approximately 10%, of the then-outstanding Common
Stock of Olin. During 1998, Olin repurchased 1.9 million shares under this
program and repurchased an additional 1.2 million shares under a repurchase
program authorized by the Board of Directors in October 1997.

In September 1998, Olin recorded a $42 million pretax charge ($0.55 diluted
earnings per share) related to the sale of the microelectronic packaging unit
at Manteca, California for $4 million in cash, and the restructuring of its
rod, wire and tube businesses at Indianapolis, Indiana.

In December 1998, Olin recorded a $21 million pretax charge ($.32 diluted
earnings per share) related to the Spin-Off of Arch Chemicals.

International Operations

Olin has sales offices and subsidiaries in various countries which support
the worldwide export of products from the United States as well as overseas
production facilities. In addition, Olin has manufacturing interests in
Brazil.

Yamaha-Olin Metal Corporation, a joint venture with Yamaha Corporation,
manufactures high-performance copper alloys in Japan for sale to the
electronics industry throughout the Far East. An Olin subsidiary loads and
packs sporting and industrial ammunition in Australia. See the Note "Segment
Information" of the Notes to Consolidated Financial Statements in Item 8, for
geographic segment data which are incorporated by reference.

Customers and Distribution

During 1998, no single customer accounted for more than 2.4% of Olin's total
consolidated sales. Products which Olin sells to industrial or commercial
users or distributors for use in the production of

5
other products constitute a major part of Olin's total sales. Some of its
products, such as sporting ammunition and brass, are sold to a large number of
users or distributors, while others, such as chlorine and caustic soda, are
sold in substantial quantities to a relatively small number of industrial
users.

Most of Olin's products and services are marketed primarily through its
sales force and sold directly to various industrial customers, the U.S.
Government and its prime contractors, to wholesalers and other distributors.

Chlor Alkali Products. Principal customers of Olin's Chlor Alkali products
include the pulp and paper industries, vinyl chloride and urethane
manufacturers and household and industrial cleaner suppliers.

Metals. Principal customers of Olin's copper and copper alloy strip, sheet
and welded tube include producers of electrical and electronic equipment,
builders' hardware and appliances, the plumbing, automotive and air-
conditioning industries and manufacturers of a variety of consumer goods.

Olin manufactures cartridge brass for its ammunition business and for other
ammunition makers. Olin also serves numerous high-technology markets through a
thin-gauge reroll operation that produces stainless steels, high-temperature
alloys and glass sealing alloys, in addition to copper and copper alloys.
Posit-Bond(R) clad metal has made Olin a major supplier of metal to the U.S.
Mint. Olin also sells various alloys to foreign governments for coinage
purposes.

The Metals business is also focused on the electronics market, providing
high performance and high-quality materials needed by the electronics industry
and other advanced technology customers. These materials include Olin-
developed proprietary alloys and Copperbond(R) treated copper foil marketed to
the printed circuit industry.

Fabricated products are principally sold to ammunition manufacturers, the
U.S. Armed Forces, building product suppliers, household product manufacturers
and automotive manufacturers.

Winchester. The principal users of the Winchester products are recreational
shooters, hunters, law enforcement agencies, the power and concrete
industries, the construction industry, the U.S. Armed Forces and certain
allied governments.

Because Olin engages in some government contracting activities and makes
sales to the U.S. Government, it is subject to extensive and complex U.S.
Government procurement laws and regulations. These laws and regulations
provide for ongoing government audits and reviews of contract procurement,
performance and administration. Failure to comply, even inadvertently, with
these laws and regulations and with laws governing the export of munitions and
other controlled products and commodities could subject Olin or one or more of
its businesses to civil and criminal penalties, and under certain
circumstances, suspension and debarment from future government contracts and
the exporting of products for a specified period of time.

Competition

Olin is in active competition with businesses producing the same or similar
products, as well as, in some instances, with businesses producing different
products designed for the same uses. With respect to certain product groups,
such as ammunition and copper alloys, and with respect to certain chlor alkali
products, Olin is among the large manufacturers or distributors in the United
States. Olin encounters competition in price, delivery, service, performance,
product innovation, product recognition and quality, depending on the product
involved.

6
Employees

As of December 31, 1998, after adjusting for the effects of the Spin-off,
Olin had approximately 6,400 employees (excluding approximately 1,000
employees at Government-owned, contractor-operated facilities and excluding
employees of disposed businesses, including Arch Chemicals), approximately
6,300 of whom were working in the United States and approximately 100 of whom
were working in foreign countries. A majority of the hourly-paid employees are
represented, for purposes of collective bargaining, by various labor unions.
Some labor contracts extend for as long as five years, but during most years
new agreements must be negotiated in a number of Olin's plants, although Olin
has no major labor contracts scheduled to expire in 1999. While relations
between Olin and its employees and their various representatives are generally
considered satisfactory, there can be no assurance that new labor contracts
can be concluded without work stoppages. No major work stoppages have occurred
in the last three years.

Research Activities; Patents

Olin's research activities are conducted on a product-group basis at a
number of facilities. Company-sponsored research expenditures were
approximately $10 million during 1998, $8 million during 1997 and $20 million
during 1996.

Olin owns, or is licensed under, a number of patents, patent applications
and trade secrets covering its products and processes. Olin believes that, in
the aggregate, the rights under such patents and licenses are important to its
operations, but does not consider any patent or license or group thereof
related to a specific process or product to be of material importance when
viewed from the standpoint of Olin's total business.

Raw Materials and Energy

Olin purchases the major portion of its raw material requirements. The
principal basic raw materials purchased by Olin for its production of chlor
alkali products are salt, electricity, and sulfur. Copper, zinc and various
other nonferrous metals are required for the metals business. Lead, brass and
propellant are the principal raw materials used in the Winchester business.
Olin's principal basic raw materials are typically purchased pursuant to
multiyear contracts. In the manufacture of ammunition, Olin uses a substantial
percentage of its own output of cartridge brass. Additional information with
respect to specific raw materials is set forth in the table above under the
caption entitled "Products and Services."

Electricity is the predominant energy source for Olin's manufacturing
facilities. Most of Olin's facilities are served by utilities which generate
electricity principally from coal, hydro and nuclear power.

Environmental and Toxic Substances Controls

<TABLE>
<CAPTION>
1998 1997 1996
---- ---- ----
($ in millions)
<S> <C> <C> <C>
Cash Outlays:
Remedial and Investigatory Spending................... $20 $31 $30
Capital Spending...................................... 2 2 3
Plant Operations...................................... 17 15 16
--- --- ---
Total Cash Outlays...................................... $39 $48 $49
=== === ===
</TABLE>

The establishment and implementation of federal, state and local standards
to regulate air, water and land quality has affected and will continue to
affect substantially all of Olin's manufacturing

7
locations. Federal legislation providing for regulation of the manufacture,
transportation, use and disposal of hazardous and toxic substances has imposed
additional regulatory requirements on industry, particularly the chemicals
industry. In addition, implementation of environmental laws, such as the
Resource Conservation and Recovery Act and the Clean Air Act, has required and
will continue to require new capital expenditures and will increase operating
costs. Olin is enrolled in the United States Environmental Protection Agency's
Voluntary Industrial Toxics Reduction Program. Olin employs waste minimization
and pollution prevention programs at its manufacturing sites.

Olin is party to various governmental and private environmental actions
associated with waste disposal sites and manufacturing facilities. Associated
costs of investigatory and remedial activities are provided for in accordance
with generally accepted accounting principles governing probability and the
ability to reasonably estimate future costs. Charges to income for
investigatory and remedial efforts were material to operating results in the
past three years and may be material to net income in future years. Such
charges to income were $16 million, $17 million and $70 million in 1998, 1997
and 1996, respectively.

Cash outlays for remedial and investigatory activities associated with
former waste sites and past operations were not charged to income but instead
were charged to reserves established for such costs identified and expensed to
income in prior years. Cash outlays for normal plant operations for the
disposal of waste and the operation and maintenance of pollution control
equipment and facilities to ensure compliance with mandated and voluntarily
imposed environmental quality standards were charged to income. Historically,
Olin has funded its environmental capital expenditures through cash flow from
operations and expects to do so in the future.

Olin's estimated environmental liability is attributable to 51 sites, 16 of
which were on the National Priority List ("NPL"). Ten sites accounted for
approximately 79% of such liability and, of the remaining sites, no one site
accounted for more than 2% of such liability. Two of these ten sites were in
the investigatory stage of the remediation process. In this stage, remedial
investigation and feasibility studies are conducted by either Olin, the United
States Environmental Protection Agency ("EPA") or other potentially
responsible parties ("PRP's") and a Record of Decision ("ROD") or its
equivalent has not yet been issued. At another six of the ten sites, a ROD or
its equivalent has been issued by either the EPA or responsible state agency
and Olin, either alone or as a member of a PRP group, was engaged in
performing the remedial measures required by that ROD. At the remaining two of
the ten sites, part of the site is subject to a ROD and another part is still
in the investigative stage of remediation. All ten sites were either former
manufacturing facilities or waste sites containing contamination generated by
those facilities.

The Company's consolidated balance sheets included liabilities for future
environmental expenditures to investigate and remediate known sites amounting
to $129 million at December 31, 1998 and $133 million at December 31, 1997, of
which $99 million and $103 million were classified as other noncurrent
liabilities, respectively. Those amounts did not take into account any
discounting of future expenditures or any consideration of insurance
recoveries or advances in technology. Those liabilities are reassessed
periodically to determine if environmental circumstances have changed and/or
remediation efforts and their costs can be better estimated. As a result of
these reassessments, future charges to income may be made for additional
liabilities.

Total environmental-related cash outlays for 1999 are estimated to be $54
million, of which $30 million is expected to be spent on remedial and
investigatory efforts, $7 million on capital projects and $17 million on
normal plant operations.

Annual environmental-related cash outlays for site investigation and
remediation, capital projects and normal plant operations are expected to
range between $50-$60 million over the next several years. While Olin does not
anticipate a material increase in the projected annual level of its
environmental-

8
related costs, there is always the possibility that such increases may occur
in the future in view of the uncertainties associated with environmental
exposures. Environmental exposures are difficult to assess for numerous
reasons, including the identification of new sites, developments at sites
resulting from investigatory studies, advances in technology, changes in
environmental laws and regulations and their application, the scarcity of
reliable data pertaining to identified sites, the difficulty in assessing the
involvement and financial capability of other potentially responsible parties
and Olin's ability to obtain contributions from other parties and the lengthy
time periods over which site remediation occurs. It is possible that some of
these matters (the outcomes of which are subject to various uncertainties) may
be resolved unfavorably against Olin. At December 31, 1998, Olin had estimated
additional environmental contingent liabilities of $40 million.

See also Item 3, "Legal Proceedings" below, the Note "Environmental" of the
Notes to Consolidated Financial Statements contained in Item 8, and Item 7,
"Management's Discussion and Analysis of Financial Condition and Results of
Operations."

Item 2. Properties

Olin has manufacturing sites at 15 separate locations in 12 states and
Puerto Rico and two manufacturing sites in two foreign countries. Most
manufacturing sites are owned although a number of small sites are leased.
Listed under Item 1 above in the table set forth under the caption "Products
and Services" are the locations at or from which Olin's products and services
are manufactured, distributed or marketed by segment.

Olin leases warehouses, terminals and distribution offices and space for
executive and branch sales offices and service departments throughout the
country and overseas.

Item 3. Legal Proceedings

(a) In 1979, an action was commenced in the U.S. District Court in New York
by the United States against Occidental Chemical Corporation (then known as
Hooker Chemical & Plastics Corporation) ("Oxychem"), certain related
companies, Olin and the City of Niagara Falls, New York, alleging that
chemical wastes were migrating in violation of environmental laws or
regulations from a site in Niagara Falls where Oxychem and Olin own adjacent,
inactive chemical waste landfills. The United States sought injunctive relief
and an order requiring Oxychem and Olin, among other things, to secure the
landfill site, install a leachate collection system and treat whatever
leachate is collected, as well as an order requiring Oxychem and Olin to place
$16.5 million in trust or provide a bond to ensure that the site will be
secured. The United States also sought civil penalties for each day of alleged
violation of the Clean Water Act which currently has a maximum daily penalty
of $27,500.

In 1980, the State of New York (the "State") filed a complaint as co-
plaintiff in the same action based upon essentially the same factual
allegations as in the suit brought by the United States. The State is seeking
$100 million in compensatory damages and $100 million in punitive damages. The
State also requested a court order to abate the alleged nuisance and penalties
of $10,000 per day for alleged violations of each of four provisions of New
York's Environmental Conservation Law. In 1983, the State filed a motion to
amend its complaint to include a count under the Comprehensive Environmental
Response, Compensation and Liability Act of 1980, as amended ("CERCLA")
alleging damage to natural resources. In 1986, the Department of Justice filed
a motion to amend its complaint to include a CERCLA and SARA (Superfund
Amendments and Reauthorization Act of 1986) count. Oxychem and Olin have filed
an opposition to the motions and the court deferred a ruling on both motions.

Under stipulations, Olin and Oxychem conducted a remedial investigation and
feasibility study. In 1990, the EPA issued a Proposed Remedial Action Plan
followed by a ROD. In 1991, the EPA issued

9
an administrative order directing Olin and Oxychem to implement the remedy
identified in the ROD. Remediation of the site has been completed. Olin and
Oxychem have negotiated the terms of a settlement agreement with the EPA and
the State of New York, under which Olin and Oxychem will pay oversight costs
on the project. Olin believes, but there can be no assurance, that the
settlement agreement will be executed and submitted to the court for approval
in 1999. See "Environmental Matters" contained in Item 7--Management's
Discussion and Analysis of Financial Condition and Results of Operations.

(b) In 1987, the EPA issued a ROD recommending remedial actions and
ecological studies with respect to mercury contamination at the site of Olin's
former mercury cell Chlor Alkali plant in Saltville, Virginia. The EPA, under
Section 122 of CERCLA, asked Olin to undertake the work called for in the ROD,
and Olin agreed to do so. In November 1988, Olin submitted to the EPA, a work
plan for remedial action, including additional stormwater run-off control
around Pond #5 and construction of a wastewater treatment plant for the
outfall from Pond #5. Olin then implemented that remedial action.

Olin completed the remedial investigation and feasibility study of the
former chlorine plant site, including Ponds # 5 and 6, in 1994. The EPA issued
a ROD in 1995, calling for covering the former waste ponds, treatment of
runoff from the ponds, and additional monitoring and investigation. In 1997,
Olin negotiated a consent decree with the EPA under which Olin is implementing
the ROD. The ROD does not address remediation of the former chlorine plant
site or the Holston River, which are the subject of the additional studies.

Olin has completed clean-up activities at two small locations near Olin's
former plant site, the Graveyard Dump Site and the former power plant.

In October 1996, Olin met with the site's Natural Resources Trustees at the
Trustee's request. At that time, Olin indicated a willingness to cooperate in
assessing whether there are any natural resource damages to the Holston River
associated with releases from the site.

Olin believes that any liability incurred by it in this matter will not be
materially adverse to its financial condition or liquidity. See "Environmental
Matters" contained in Item 7--Management's Discussion and Analysis of
Financial Condition and Results of Operations.

(c) As part of the continuing environmental investigation by federal, state
and local governments of waste disposal sites, Olin has entered into a number
of settlement agreements requiring it to contribute to the cost of the
investigation and cleanup of a number of sites. This process of investigation
and cleanup is expected to continue. See "Environmental Matters" contained in
Item 7--Management's Discussion and Analysis of Financial Condition and
Results of Operations.

(d) Olin and its subsidiaries are defendants in various other legal actions
arising out of their normal business activities, none of which is considered
by management to be material.

10
Item 4. Submission of Matters to a Vote of Security Holders

No matter was submitted to a vote of security holders during the three
months ended December 31, 1998.

Executive Officers of Olin Corporation as of March 1, 1999

<TABLE>
<CAPTION>
Served as
an Olin
Officer
Name and Age Office Since
------------ ------ ---------
<C> <S> <C>
Donald W. Griffin (62)........... Chairman of the Board, 1983
President and Chief
Executive Officer
Anthony W. Ruggiero (57)......... Executive Vice President and 1995
Chief Financial Officer
Peter C. Kosche (56)............. Senior Vice President, 1993
Corporate Affairs
George B. Erensen (55)........... Vice President and General Tax 1990
Counsel
Thomas M. Gura (53).............. Vice President and President, 1997
Winchester Division
Johnnie M. Jackson, Jr. (53)..... Vice President, General Counsel 1995
and Secretary
John L. McIntosh (44)............ Vice President and President, 1999
Chlor Alkali Products Division
Janet M. Pierpont (51)........... Vice President and Treasurer 1990
Joseph D. Rupp (48).............. Vice President and President, 1996
Brass Division
</TABLE>

No family relationship exists between any of the above named executive
officers or between any of them and any Director of Olin. Such officers were
elected to serve as such, subject to the By-laws, until their respective
successors are chosen.

Each of the above-named executive officers, except T.M. Gura, J.M. Jackson,
J.L. McIntosh, A.W. Ruggiero, and J.D. Rupp, has served Olin as an executive
officer for not less than the past five years.

Thomas M. Gura was elected a Corporate Vice President on September 25, 1997.
He was appointed President of the Winchester Division on August 19, 1997.
Prior to that time, he served as Vice President, Marketing and Sales of the
Brass Division.

Johnnie M. Jackson, Jr. was elected a Corporate Vice President on April 27,
1995 and Corporate Secretary on April 29, 1993. Prior to that time, since
1989, he has served Olin in the following capacities: General Counsel--
Corporate Resources and Secretary, Associate General Counsel--Corporate
Resources and Secretary and Deputy General Counsel.

John L. McIntosh was elected a Corporate Vice President on February 1, 1999.
Prior to that time, since 1997, he served as Vice President, Operations for
Olin's specialty chemicals operations. He also served as Vice President,
Manufacturing and Engineering for Chlor Alkali and was Director of
Manufacturing, Engineering and Purchasing for that division from 1991 through
1997.

Anthony W. Ruggiero joined Olin on August 30, 1995 and was elected a
Corporate Senior Vice President and Chief Financial Officer on September 29,
1995, and became Executive Vice President on January 1, 1999. From 1990 to
1995, he served as Senior Vice President and Chief Financial Officer of The
Reader's Digest Association, Inc. He joined Squibb Corporation in 1969 and
served as Senior Vice President and Chief Financial Officer and a director
from 1983 to 1990.

Joseph D. Rupp was elected a Corporate Vice President on January 1, 1996 and
also serves as President, Brass Division. Prior to that time, since 1985, he
served as Vice President, Manufacturing and Engineering for the Brass
Division.

11
PART II

Item 5. Market for the Registrant's Common Equity and Related Stockholder
Matters

As of January 31, 1999, there were approximately 9,100 record holders of
Olin Common Stock.

Olin Common Stock is traded on the New York Stock Exchange, Chicago Stock
Exchange and Pacific Exchange.

Set forth in the Note "Other Financial Data" to the Notes to Consolidated
Financial Statements in Item 8 is information concerning the high and low
sales prices of Olin Common Stock and dividends paid on Olin Common Stock
during each quarterly period in 1998 and 1997.

Following the Spin-Off, the annual Olin dividend is expected to be $.80 per
share, and the annual Arch Chemicals dividend is expected to be $.40 per
equivalent Olin share ($.80 per Arch share). Initially, this would result in
the same annual total dividend of $1.20 per Olin share as before the Spin-Off,
although the Board of Directors of either Olin or Arch Chemicals, may change
the dividend rate for that company at any time in the future.

12
Item 6. Selected Financial Data

Six-Year Financial Summary

<TABLE>
<CAPTION>
($ and shares in millions, 1998 1997 1996 1995 1994 1993
except per share data) ------ ------ ------ ------ ------ ------
<S> <C> <C> <C> <C> <C> <C>
Operations
Sales..................... $1,426 $1,499 $1,758 $1,827 $1,620 $1,446
Cost of Goods Sold........ 1,161 1,203 1,396 1,482 1,359 1,386
Selling and
Administration........... 123 132 155 153 139 135
Research and Development.. 10 8 20 17 18 21
Interest Expense.......... 17 24 27 33 27 29
Interest and Other Income
(Expense)................ 7 15 13 (5) -- --
Gain (Loss) on Sales and
Restructurings
of Businesses and Spin-
off Costs................ (63) -- 179 -- -- (26)
------ ------ ------ ------ ------ ------
Income (Loss) from
Continuing Operations
Before Taxes............. 59 147 352 137 77 (151)
Income Tax Provision
(Benefit)................ 21 50 125 47 26 (60)
------ ------ ------ ------ ------ ------
Income (Loss) from
Continuing Operations.... 38 97 227 90 51 (91)
Discontinued Operations... 40 56 53 50 40 (1)
------ ------ ------ ------ ------ ------
Net Income (Loss)......... 78 153 280 140 91 (92)
====== ====== ====== ====== ====== ======
Financial Position
Working Capital........... 225(/1/) 273(/1/) 385(/1/) 24 88 (15)
Property, Plant and
Equipment, Net........... 475 517 400 580 540 534
Total Assets.............. 1,577 1,707 2,118 1,963 1,749 1,685
Capitalization:
Short-Term Debt......... 1(/1/) 8(/1/) 137(/1/) 122 29 113
Long-Term Debt.......... 230(/1/) 262(/1/) 271(/1/) 406 418 449
Shareholders' Equity.... 790 879 946 841 749 596
------ ------ ------ ------ ------ ------
Total Capitalization...... 1,021 1,149 1,354 1,369 1,196 1,158
====== ====== ====== ====== ====== ======
Per Share Data
Net Income (Loss):
Basic:
Continuing Operations. 0.79 1.91 4.30 1.71 0.87 (2.82)
Discontinued
Operations........... 0.85 1.11 1.04 1.04 0.96 (0.03)
------ ------ ------ ------ ------ ------
Net Income (Loss)..... 1.64 3.02 5.34 2.75 1.83 (2.85)
====== ====== ====== ====== ====== ======
Diluted:
Continuing Operations. 0.79 1.90 4.26 1.70 0.87 (2.82)
Discontinued
Operations........... 0.84 1.10 1.01 0.97 0.96 (0.03)
------ ------ ------ ------ ------ ------
Net Income (Loss)..... 1.63 3.00 5.27 2.67 1.83 (2.85)
====== ====== ====== ====== ====== ======
Cash Dividends:
Common.................. 1.20 1.20 1.20 1.20 1.10 1.10
ESOP Preferred (annual
rate).................. -- -- 5.97 5.97 5.97 5.97
Series A Preferred
(annual rate).......... -- -- -- 3.64 3.64 3.64
Shareholders' Equity(/2/). 17.25 17.98 18.13 17.03 15.43 13.62
Market Price of Common
Stock:
High.................... 49 5/16 51 3/8 48 38 5/8 30 1/8 25 1/4
Low..................... 23 7/8 35 3/8 34 7/8 24 1/4 23 20
Year End................ 28 5/16 46 7/8 37 5/8 37 1/8 25 3/4 24 3/4
Other
Capital Expenditures...... 78 76 74 116 80 80
Depreciation.............. 76 76 84 77 78 74
Common Dividends Paid..... 58 61 60 57 44 42
Purchases of Common Stock. 112 163 -- -- -- --
Current Ratio............. 1.8 1.8 1.6 1.0 1.2 1.0
Total Debt to Total
Capitalization(/3/)...... 22.6% 23.5% 30.0% 37.9% 36.5% 46.8%
Effective Tax Rate........ 35.6% 34.0% 35.5% 34.3% 33.2% 40.0%
Average Common Shares
Outstanding.............. 47.9 50.5 50.0 47.6 41.0 38.2
Shareholders.............. 9,200 10,600 11,300 12,000 12,100 13,000
Employees(/4/)............ 6,400 6,600 6,200 7,200 7,500 7,100
</TABLE>
- --------
In December 1996, the company sold its isocyanates business for $565 in
cash. 1996 and prior include the operating results of the isocyanates
business. See Management's Discussion and Analysis of Financial Condition and
Results of Operations on page 14.

(1) Working Capital includes $50 ($157 in 1997, $518 in 1996) of Cash and Cash
Equivalents and $25 ($28 in 1997, $87 in 1996) of Short-Term Investments
in 1998.
(2) In 1994 and 1993, calculation is based on common shares and Series A
Conversion Preferred Stock outstanding.
(3) Excluding reduction to equity for the Employee Stock Ownership Plan from
1993 through 1996.
(4) Employee data exclude employees who work at government-owned/contractor-
operated facilities.

13
Item 7. Management's Discussion and Analysis of Financial Condition and
Results of Operations

Consolidated Results of Operations(/1/)

<TABLE>
<CAPTION>
1998(/2/) 1997 1996(/3/)
-------------- ---------- -----------
($ in millions, except per share data)
<S> <C> <C> <C>
Sales................................ $ 1,426 $ 1,499 $ 1,758
Gross Margin......................... 265 296 362
Selling and Administration........... 123 132 155
Interest Expense, net................ 14 14 25
Gain (Loss) on Sales and
Restructurings of Businesses and
Spin-Off Costs...................... (63) -- 179
Income from Continuing Operations.... 38 97 227
Net Income........................... 78 153 280
Per Common Share:
Basic
Income from Continuing
Operations...................... $ 0.79 $ 1.91 $ 4.30
Net Income....................... $ 1.64 $ 3.02 $ 5.34
Diluted
Income from Continuing
Operations...................... $ 0.79 $ 1.90 $ 4.26
Net Income....................... $ 1.63 $ 3.00 $ 5.27
</TABLE>
- --------
(1)Results of operations have been restated to reflect the Spin-Off of Arch
Chemicals.
(2) Includes the charge for the sale of the microelectronic packaging unit at
Manteca, CA and the restructuring of the rod, wire and tube businesses at
Indianapolis, IN ($42 pretax, $26 after tax and $0.55 diluted earnings per
share) and non-recurring costs associated with the Spin-Off of Arch
Chemicals ($21 pretax, $15 after tax and $0.32 diluted earnings per
share).
(3) Includes the operating results of the isocyanates business, which was sold
in December 1996. Sales, gross margin, selling and administration and net
income of the isocyanates business in 1996 was $296, $71, $16 and $33,
respectively.

1998 Compared to 1997

Sales decreased 5% due to a decrease in selling prices and lower metal
values. The decrease in selling prices was primarily related to lower
Electrochemical Unit ("ECU") prices in the Chlor Alkali Products segment.

Gross margin percentage was 19% in 1998 compared to 20% in 1997 due to the
decrease in Chlor Alkali margins as a result of lower ECU prices.

Selling and Administration as a percentage of sales in 1998 and 1997 was 9%.
Selling and Administration was $9 million lower than in 1997 due to lower
corporate administrative expenses, primarily pension costs and management
incentive compensation.

Interest expense, net of interest income, was equal to 1997. Lower interest
expense was due to the repayment of debt in 1997 and 1998 offset by less
interest income due to lower average cash, cash equivalent and short-term
investment balances.

The effective tax rate increased to 35.6% from 34.0% due to lower foreign
tax credits and higher non-deductible expenses related to the spin-off costs.
At December 31, 1998, the Company had net deferred tax liabilities of $25
million, primarily comprised of temporary differences between financial
statement and tax bases of assets and liabilities.

In the third quarter of 1998, the Company recorded a $42 million pretax
charge ($0.55 diluted EPS) related to the sale of the microelectronic
packaging unit at Manteca, CA for $4 million in cash, and the restructuring of
the rod, wire and tube businesses at Indianapolis, IN.


14
On February 8, 1999, the Company completed the Spin-Off of its specialty
chemicals businesses as Arch Chemicals. Under the terms of the Spin-Off, the
Company distributed to its holders of common stock of record at the close of
business on February 1, 1999, one Arch Chemicals common share for every two
shares of Olin common stock. The results of operations have been restated to
reflect Arch Chemicals as discontinued operations for all periods presented.
In the fourth quarter of 1998, the Company recorded a $21 million pretax
charge ($0.32 diluted EPS) for non-recurring costs associated with the Spin-
Off (primarily severance, investment banking and legal fees).

1997 Compared to 1996

In December of 1996, the Company sold its isocyanates business to ARCO
Chemical Company ("ARCO") for $565 million in cash. In connection with this
transaction the Company recorded a pretax gain of $188 million. The following
comparison of operating results of 1997 to 1996 excludes the sales, gross
margin, selling and administration expenses, research and development expenses
and net income of the isocyanates businesses in 1996. On December 31, 1996,
the Company completed the spin-off of its Ordnance and Aerospace businesses as
Primex Technologies, Inc. ("Primex"). Under the terms of that spin-off, the
Company distributed to its holders of common stock of record at the close of
business on December 19, 1996, one Primex common share for every ten shares of
Olin common stock. The 1996 results of operations reflect Primex as
discontinued operations. In the fourth quarter of 1996, the Company recorded a
$9 million pretax charge for non-recurring costs associated with the Primex
spin-off (primarily pension curtailment, investment banking and legal fees).

Sales increased 3% due to higher volumes and the inclusion of the sales from
the Niachlor acquisition, offset in part by a drop in selling prices and metal
values.

Gross margin percentage was 20% in 1997 and 1996 as lower fixed costs per
unit associated with higher volumes offset the impact of lower selling prices.

Selling and administration expenses as a percentage of sales were 9% in 1997
and 1996. Selling and administrative expenses decreased because of lower
corporate administration expenses and lower incentive compensation costs.

Interest expense, net of interest income, decreased due to lower interest
expense due to the repayment of the $125 million subordinated notes in 1997,
and higher interest income due to higher average cash, cash equivalent and
short-term investment balances in 1997.

Other income decreased due to the gain on the sale of the Company's
corporate headquarters in 1996.

The effective tax rate decreased to 34.0% from 35.5%. Excluding the impact
of the gain on the sale of the isocyanates business, the effective tax rate in
1997 increased 2.3% due to lower foreign tax benefits as a result of the sale
of the isocyanates business.

In February of 1997, the Company completed the purchase of the remaining 50%
of Niachlor with a final payment of $2 million to E.I. du Pont de Nemours and
Company (DuPont). In December 1996, the Company made an advance payment of $75
million to DuPont.

In October 1997 the Company and Asahi Glass Company established separate
ownership of two former joint ventures the companies had previously formed in
polyols and microelectronic packaging systems. The Company became the sole
owner of Aegis, Inc., a manufacturer of metal hermetic packages that was
established in 1986. Conversely, Asahi Glass Company became the sole owner of
the former Asahi-Olin joint venture in polyols that was established in 1974.
These transactions did not have a material effect on the Company's results of
operations.

15
Segment Operating Results

Segment operating income is defined as earnings before interest, other
income and income taxes and includes earnings of non-consolidated affiliates
which is included in other income in the Consolidated Statements of Income.
Segment operating income includes an allocation of corporate operating
expenses. Segment operating results in 1998 exclude the charge for the sale of
the microelectronic packaging unit at Manteca, CA and the restructuring of the
rod, wire and tube businesses at Indianapolis, IN ($42 million pretax) and
non-recurring costs associated with the Spin-Off of Arch Chemicals ($21
million pretax). Segment operating income in 1996 excludes the gain on the
sale of the isocyanates business ($188 million pretax) and non-recurring costs
associated with the Spin-Off of Primex ($9 million pretax).

Chlor Alkali Products

<TABLE>
<CAPTION>
1998 1997 1996
---- ---- ----
($ in millions)
<S> <C> <C> <C>
Sales...................................................... $366 $411 $397
Operating Income........................................... 55 99 86
</TABLE>

1998 Compared to 1997

Sales were lower than 1997 due to lower pricing and lower volumes. Including
the Company's share of the sales volumes from the Sunbelt joint venture, which
is accounted for on an equity basis, total volumes were higher than 1997.
Operating income decreased due to the lower pricing, lower operating rates,
and higher manufacturing costs. Average ECU prices in 1998 were in the $340
range compared to the $360 range in 1997. Operating rates in 1998 were in the
90% range compared with 100% range in 1997. Lower operating rates were a
result of lower demand for chlorine as a result of the Asian financial crisis,
unusually hot weather in the southeast which caused higher electricity costs,
and restricted salt availability. Manufacturing costs were higher as a result
of the lower operating rates, higher depreciation and higher power costs.

1997 Compared to 1996

Sales increased due to the inclusion of the sales from Niachlor and higher
volumes as a result of increased demand offset in part by lower caustic
pricing. Average ECU prices in 1997 were in the $360 range compared to the
$400 range in 1996. Operating income increased due to higher volumes, lower
manufacturing and administrative costs and the impact of the Niachlor
acquisition. Operating rates were in the 100% range in 1997 and 1996.

Metals

<TABLE>
<CAPTION>
1998 1997 1996
---- ---- ----
($ in millions)
<S> <C> <C> <C>
Sales...................................................... $799 $836 $809
Operating Income........................................... 64 62 60
</TABLE>

1998 Compared to 1997

Sales were down 4% due to lower metal values offset in part by higher
volumes. Strip volumes were up as a result of strong housing, automotive, and
coinage markets. Operating income was higher due to lower administrative
expenses, higher strip volumes and improved earnings at A.J. Oster Company
("Oster"). At Indianapolis, profits were lower due to higher costs in the rod,
wire and tube businesses.

16
1997 Compared to 1996

Sales were 3% higher than 1996 due to higher volumes offset in part by lower
metal values. Increased demand for strip products, particularly from the
automotive and electronics markets, along with record specialty product
shipments led to higher volumes. Operating income improved as a result of the
higher volumes and improved earnings at Oster, which was partially offset by
higher manufacturing costs at Indianapolis, IN.

Winchester

<TABLE>
<CAPTION>
1998 1997 1996
---- ---- ----
($ in millions)
<S> <C> <C> <C>
Sales.................................................. $261 $252 $256
Operating Income (Loss)................................ 13 (4) (2)
</TABLE>

1998 Compared to 1997

Sales in 1998 were 4% higher than 1997 due to higher volumes offset slightly
by lower prices in the centerfire rifle category. Domestic commercial volume
growth was driven by improved market share in a modestly growing overall
market. Domestic and international military sales were lower as were sales in
Australia which has been negatively impacted by the implementation of
restrictive government legislation on the sales of firearms and ammunition.
Operating income improved significantly from 1997 due to the impact of the
higher commercial volumes, lower manufacturing costs, lower commodity costs
and lower selling and administrative expenses. In Australia, profits were
lower due to the impact of the lower volumes as a result of the restrictive
legislation.

1997 Compared to 1996

Sales were lower and the operating loss increased. Reduced military
ammunition shipments due to the absence of a U.S. government contract along
with lower commercial ammunition sales to distributors were the main
contributors to the sales decrease. The profit impact from the lower volumes
and increased advertising and selling expenses more than offset higher Lake
City Army Ammunition facility management fees.

1999 Outlook

Consolidated

The Company's 1999 operating results are expected to be significantly lower
than 1998. 1999 diluted earnings per share are expected to be in the $0.50
range, assuming Chlor Alkali's ECU pricing average for the year remains at
approximately current levels.

Chlor Alkali Products

Sales and operating income are expected to decrease due to significantly
lower ECU pricing. Capacity additions in the industry combined with lower
demand will keep ECU pricing at depressed levels. Operating rates are expected
to be in the 90% range, which is consistent with the rest of the industry.
Operating results from the Sunbelt joint venture will be lower due to the
lower ECU pricing.

Metals

Sales are expected to increase slightly due to higher strip volumes and
higher metal values which will more than offset the loss of revenue associated
with the rod, wire and tube businesses which were shut down at the end of
1998. Over capacity in the industry and strong competition will keep pricing
relatively flat. Operating income is expected to improve due to the cost
benefits of the shutdown of the rod, wire and tube businesses, higher volumes
and other cost reduction initiatives.

17
Winchester

Sales are expected to be higher due to an increase in domestic commercial
channels. Operating income is expected to be higher because of the higher
sales.

Cautionary Statement under Federal Securities Laws: The information
contained in the 1999 Outlook section (and subsections thereof), the
Environmental Matters section, the Liquidity, Investment Activity and Other
Financial Data section, and the Environmental and Commitments and
Contingencies notes to the Consolidated Financial Statements contains forward-
looking statements that are based on management's beliefs, certain assumptions
made by management and current expectations, estimates and projections about
the markets and economy in which the Company and its various divisions
operate. Words such as "expects," "believes," "should," "plans," "will,"
"estimates," and variations of such words and similar expressions are intended
to identify such forward-looking statements. These statements are not
guarantees of future performance and involve certain risks, uncertainties and
assumptions ("Future Factors") which are difficult to predict. Therefore,
actual outcomes and results may differ materially from what is expected or
forecasted in such forward-looking statements. The Company undertakes no
obligation to update publicly any forward-looking statements, whether as a
result of future events, new information or otherwise. Future Factors which
could cause actual results to differ materially from those discussed in these
sections and notes include but are not limited to: general economic and
business and market conditions; lack of moderate growth in the U.S. economy or
even a slight recession in 1999; worsening business conditions as a result of
the Asian and Latin American financial turmoil; competitive pricing pressures;
declines in Chlor Alkali's ECU prices below those projected; Chlor Alkali
operating rates below the 90% range; higher-than-expected raw material costs;
a downturn in many of the markets the Company serves such as the electronics,
automotive, ammunition and housing; the supply/demand balance for the
Company's products, including the impact of excess industry capacity; failure
to achieve targeted cost reduction programs; capital expenditures, such as
cost overruns, in excess of those scheduled; environmental costs in excess of
those projected; and the occurrence of unexpected manufacturing
interruptions/outages.

Discontinued Operations
<TABLE>
<CAPTION>
1998 1997 1996
---- ---- ------
($ in millions)
<S> <C> <C> <C>
Sales.................................................... $863 $930 $1,385
Net Income............................................... 40 56 53
</TABLE>

1998 Compared to 1997

Sales decreased 7% due to a decrease in prices and lower volumes due to the
sale of the surfactants business in 1997 and the conversion of the flexible
polyol business to a tolling operation. Net income decreased due to the lower
volumes and higher selling and administrative expenses. Selling and
administrative expenses were higher due to an increase in information
technology spending related to the SAP implementation and increased
international operating expenses.

1997 Compared to 1996

Operating results in 1996 include Primex which was spun-off in December
1996. Primex sales were $471 million with a net loss of $8 million in 1996.
Excluding Primex, the sales of the discontinued operations increased 2% while
net income decreased 8%. The sales increase was attributable to a 1% increase
in both prices and volumes. Net income decreased due to lower gross margins as
a result of higher raw material and manufacturing costs offset in part by
lower selling and administrative expenses.

18
Environmental Matters

<TABLE>
<CAPTION>
1998 1997 1996
---- ---- ----
($ in millions)
<S> <C> <C> <C>
Cash Outlays:
Remedial and Investigatory Spending.................. $20 $31 $30
Capital Spending..................................... 2 2 3
Plant Operations..................................... 17 15 16
--- --- ---
Total Cash Outlays..................................... $39 $48 $49
=== === ===
</TABLE>

The establishment and implementation of federal, state and local standards
to regulate air, water and land quality has affected and will continue to
affect substantially all of the Company's manufacturing locations. Federal
legislation providing for regulation of the manufacture, transportation, use
and disposal of hazardous and toxic substances has imposed additional
regulatory requirements on industry, particularly the chemicals industry. In
addition, implementation of environmental laws, such as the Resource
Conservation and Recovery Act and the Clean Air Act, has required and will
continue to require new capital expenditures and will increase operating
costs. The Company employs waste minimization and pollution prevention
programs at its manufacturing sites.

The Company is party to various governmental and private environmental
actions associated with waste disposal sites and manufacturing facilities.
Associated costs of investigatory and remedial activities are provided for in
accordance with generally accepted accounting principles governing probability
and the ability to reasonably estimate future costs. Charges to income for
investigatory and remedial efforts were material to operating results in 1998,
1997, and 1996 and may be material to net income in future years. Such charges
to income were $16 million, $17 million and $70 million in 1998, 1997, and
1996 respectively. In 1996, in connection with the sale of the isocyanates
business at the Company's Lake Charles, LA facility, a $53 million provision
was recorded to provide for contractual liabilities related to future
environmental spending at the Lake Charles site.

Cash outlays for remedial and investigatory activities associated with
former waste sites and past operations were not charged to income but instead
were charged to reserves established for such costs identified and expensed to
income in prior years. Cash outlays for normal plant operations for the
disposal of waste and the operation and maintenance of pollution control
equipment and facilities to ensure compliance with mandated and voluntarily
imposed environmental quality standards were charged to income. Historically,
the Company has funded its environmental capital expenditures through cash
flow from operations and expects to do so in the future.

The Company's estimated environmental liability at the end of 1998 was
attributable to 51 sites, 16 of which were on the National Priority List
(NPL). Ten sites accounted for approximately 79% of such liability and, of the
remaining sites, no one site accounted for more than 2% of such liability. Two
of these ten sites were in the investigatory stage of the remediation process.
In this stage, remedial investigation and feasibility studies are conducted by
either the Company, the United States Environmental Protection Agency (EPA) or
other potentially responsible parties (PRPs) and a Record of Decision (ROD) or
its equivalent has not been issued. At six of the ten sites, a ROD or its
equivalent has been issued by either the EPA or responsible state agency and
the Company either alone, or as a member of a PRP group, was engaged in
performing the remedial measures required by that ROD. At the remaining two of
the ten sites, part of the site is subject to a ROD and another part is still
in the investigative stage of remediation. All ten sites were either former
manufacturing facilities or waste sites containing contamination generated by
those facilities.

The Company's consolidated balance sheets included liabilities for future
environmental expenditures to investigate and remediate known sites amounting
to $129 million at December 31, 1998 and $133 million at December 31, 1997, of
which $99 million and $103 million were classified as

19
other noncurrent liabilities, respectively. Those amounts did not take into
account any discounting of future expenditures or any consideration of
insurance recoveries or advances in technology. Those liabilities are
reassessed periodically to determine if environmental circumstances have
changed and/or remediation efforts and their costs can be better estimated. As
a result of these reassessments, future charges to income may be made for
additional liabilities.

Total environmental-related cash outlays for 1999 are estimated to be $54
million, of which $30 million is expected to be spent on investigatory and
remedial efforts, $7 million on capital projects and $17 million on normal
plant operations.

Annual environmental-related cash outlays for site investigation and
remediation, capital projects, and normal plant operations are expected to
range between $50-$60 million over the next several years. While the Company
does not anticipate a material increase in the projected annual level of its
environmental-related costs, there is always the possibility that such
increases may occur in the future in view of the uncertainties associated with
environmental exposures. Environmental exposures are difficult to assess for
numerous reasons, including the identification of new sites, developments at
sites resulting from investigatory studies, advances in technology, changes in
environmental laws and regulations and their application, the scarcity of
reliable data pertaining to identified sites, the difficulty in assessing the
involvement and financial capability of other potentially responsible parties
and the Company's ability to obtain contributions from other parties and the
lengthy time periods over which site remediation occurs. It is possible that
some of these matters (the outcomes of which are subject to various
uncertainties) may be resolved unfavorably against the Company. At December
31, 1998, the Company had estimated additional contingent environmental
liabilities of $40 million.

Liquidity, Investment Activity and Other Financial Data

Cash Flow Data

<TABLE>
<CAPTION>
Provided By (Used For) 1998 1997 1996
---------------------- ----- ----- ----
($ in millions)
<S> <C> <C> <C>
Net Cash and Cash Equivalents
Provided by (Used for) Operating
Activities from Continuing Operations............... $ 178 $ (33) $178
Net Operating Activities............................... 180 (12) 223
Capital Expenditures................................... (78) (76) (74)
Net Investing Activities............................... (78) (4) 324
Purchases of Olin Common Stock......................... (112) (163) --
Net Financing Activities............................... (209) (345) (31)
</TABLE>

Cash flows from operations and cash and cash equivalents on hand were used
to finance the Company's working capital requirements, long-term debt
payments, capital and investment projects, dividends and the purchase of the
Company's common stock.

Operating Activities

In 1998, the increase in cash flow from operating activities of continuing
operations was primarily attributable to lower investment in working capital
and lower tax payments. In 1997, the Company paid approximately $110 million
of taxes related to the sale of the isocyanates business. In 1998 the Company
received approximately $80 million as a result of a refund of taxes paid on
capital gains in prior years.

In 1997, the decrease in cash flow from operating activities of continuing
operations was due to lower earnings (due to the sale of the isocyanates
business in 1996), taxes paid on the sale of the

20
isocyanates business and increased investment in working capital. The
discontinuation of an ammunition prepayment program in 1997 and unusually low
accounts receivable levels in the metals segment at year-end 1996 contributed
to the investment in working capital in 1997.

Capital Expenditures

Capital spending of $78 million in 1998 was $2 million higher than 1997 and
approximated depreciation in both years. Excluding the capital spending ($10
million) and depreciation ($22 million) associated with the isocyanates
business in 1996, capital spending in 1996 was slightly higher than
depreciation because of capital spending in support of the Brass Mill 2000
project.

Investing Activities

In 1998, the Company sold its microelectronic packaging unit at Manteca, CA,
for $4 million in cash.

In February 1997, the Company completed its purchase of the remaining 50% of
Niachlor with a final payment of $2 million to E.I. du Pont de Nemours and
Company (DuPont). In December 1996, the Company made an advance payment of $75
million to DuPont, which was included in Investment and Advances-Affiliated
Companies at Equity in the December 31, 1996 Balance Sheet. This acquisition
was accounted for as a purchase in 1997 and consists primarily of property,
plant and equipment.

In October 1997 the Company and Asahi Glass Company established separate
ownership of two former joint ventures the companies had previously formed in
polyols and microelectronic packaging systems. The Company became the sole
owner of Aegis, Inc., a manufacturer of metal hermetic packages that was
established in 1986. Conversely, Asahi Glass Company became the sole owner of
the Asahi-Olin joint venture in polyols that was established in 1974. The net
proceeds of this transaction were $5 million and did not have a material
effect on the Company's results of operations.

Investment spending in 1997 was primarily attributable to the Sunbelt
project, a joint venture formed by the Geon Company and the Company in 1996 to
construct and operate a Chlor Alkali facility at the Company's McIntosh, AL
site. The facility started operations in December 1997. Also in December, the
Company was repaid $98 million of its original advances to the venture, as a
result of a long-term financing undertaken by this venture. The Company has
guaranteed its share of the venture's long-term debt. In 1996, the Company
invested approximately $27 million in this venture.

In December 1996, the Company sold its isocyanates business for $565 million
in cash. The sale included all assets at the Company's Lake Charles, LA
facility used in the manufacture and sale of toluene diisocyanate, aliphatic
isocyanates and nitric acid. Proceeds of $23 million in 1996 from the
disposition of property, plant and equipment related primarily to the sale of
the corporate headquarters.

Financing Activities

At December 31, 1998, the Company maintained committed credit facilities
with banks of $254 million, all of which were available. Included in the $254
million committed credit facility is an unsecured revolving credit agreement
with a group of banks which provided a maximum borrowing of $250 million.
During 1997, the Company amended the revolving credit agreement, extending the
expiration date to October 2002. As a result of the Spin-Off of Arch
Chemicals, in February of 1999, the Company amended the revolving credit
agreement reducing the aggregate commitments from $250 million to $165
million. The Company may select various floating rate borrowing options. The
Company believes that the credit facility is adequate to satisfy its liquidity
needs for the near future.

21
The credit facility includes various customary restrictive covenants including
restrictions related to the ratio of debt to earnings before interest, taxes,
depreciation and amortization and the ratio of earnings before interest,
taxes, depreciation and amortization to interest.

In May 1998, the Company repaid $38 million of 7.97% notes. In June 1997,
the Company repaid $125 million of 9.5% subordinated notes.

During 1998 and 1997, the Company used $112 million and $163 million to
repurchase 3.1 and 3.8 million shares of the Company's stock, respectively.
The Board of Directors has approved two share repurchase programs to
repurchase 10 million shares of the Company's stock. It is expected that this
program will be completed during 1999.

Prior to the Spin-Off of Arch Chemicals in February, 1999, the Company
borrowed $75 million under a credit facility which liability was assumed by
Arch Chemicals. The Company intends to use these funds for general corporate
purposes, which may include share repurchases and future acquisitions. Prior
to being spun-off from the Company, Primex assumed a $160 million credit
facility established by the Company, under which the Company had borrowed $125
million. The Company used these funds to reduce its own borrowings in 1997.

The percent of total debt to total capitalization (excluding the reduction
in equity for the Contributing Employee Ownership Plan (ESOP)) decreased to
23% at December 31, 1998, from 24% at year-end 1997 and 30% at year-end 1996.
Contributing to the decrease in 1997 was the repayment of the 9.5%
subordinated notes.

In 1989 the Company established an ESOP. The ESOP trust borrowed $100
million ($40 million from the Company) to purchase 1.3 million shares of the
Company's convertible preferred stock. The ESOP trust has repaid in full its
original loan from the Company. This loan to the ESOP was financed by the
Company through a long-term credit facility and was repaid in July 1996. In
December 1996, the Board of Directors approved the redemption of all
outstanding ESOP preferred stock with common stock of equivalent value.
Approximately 1.87 million shares of common stock at a per share value of
$40.19 were issued in exchange for approximately .9 million shares of ESOP
preferred stock at a per share value of $85.75. The annual fixed dividend rate
was $5.97 per share and during 1996, dividends were paid in the first three
quarters.

Dividends per common share were $1.20 in 1998, 1997 and 1996. Total
dividends paid on common stock amounted to $58 million in 1998, $61 million in
1997 and $60 million in 1996, while ESOP preferred dividends amounted to $4
million in 1996. The Company will pay a first quarter 1999 dividend of $0.30
per share on March 10, 1999 to shareholders of record on January 19, 1999.
Following the Spin-Off of Arch Chemicals, the annual Olin dividend is expected
to be $0.80 per share to reflect the effect of the Spin-Off. The annual Arch
Chemicals dividend is expected to be $0.40 per equivalent Olin common share
($0.80 per Arch Chemicals common share). Initially, this would result in the
same annual total dividend of $1.20 per Olin share, although the Board of
Directors of either Olin or Arch Chemicals could change the dividend rate for
that company at any time in the future.

During 1992, the Company swapped interest payments on $50 million principal
amount of its 8% notes due 2002, to a floating rate (5.15602% at December 31,
1998). In June 1995, the Company offset this transaction by swapping interest
payments to a fixed rate of 6.485%.

New Accounting Standards

In 1998 the Company adopted SFAS No 130, "Reporting Comprehensive Income,"
which establishes standards for the reporting and display of comprehensive
income and its components in the financial statements.

22
In 1998 the Company adopted SFAS No 131, "Disclosure about Segments of an
Enterprise and Related Information," which establishes standards for the way
that segment information is to be disclosed in financial statements along with
additional information on products and services, geographic areas and major
customers.

In 1998, the Company adopted SFAS No. 132, "Employers' Disclosures about
Pensions and Other Postretirement Benefits, an amendment to FASB Statements
No. 87, 88, and 106," which modifies the disclosure requirements related to
pensions and other postretirement benefits.

In 1998, the Financial Accounting Standards Board issued Statement No. 133
("Statement 133") "Accounting for Derivative Instruments and Hedging
Activities." It requires an entity to recognize all derivatives as either
assets or liabilities in the statement of financial position and measure those
instruments at fair value. This statement is effective for all fiscal quarters
of fiscal years beginning after June 15, 1999. The Company is currently
evaluating the effect this statement will have on its financial position and
results of operations in the period of adoption. After determining the effect
of Statement 133, the Company may consider early adoption of this
pronouncement.

In 1998, the American Institute of Certified Public Accountants ("AICPA")
issued Statement of Position 98-1 ("SOP 98-1"), "Accounting for the Costs of
Computer Software Developed or Obtained for Internal Use." SOP 98-1 is
effective for fiscal years beginning after December 15, 1998. The Company is
currently evaluating the effect this Statement of Position will have on its
financial position and results of operations in the period of adoption, but
does not believe it will have a material effect.

Also in 1998, the AICPA issued Statement of Position 98-5 ("SOP 98-5"),
"Reporting on the Costs of Start-up Activities." This Statement of Position
requires the expensing of certain costs such as pre-operating expenses and
organizational costs associated with the Company's start-up activities, and is
effective for fiscal years beginning after December 15, 1998. The effect of
adoption is required to be accounted for as a cumulative effect of change in
accounting principle. The Company is still evaluating the effect of this
statement on results of operations and financial position. The Company does
not expect however that the amount recognized as a cumulative effect of change
in accounting principle, if any, would be material.

Euro Conversion

On January 1, 1999, eleven of the fifteen member countries of the European
Union adopted the Euro as their common legal currency and established fixed
conversion rates between their existing sovereign currencies and the Euro. The
Company does not expect the conversion to the Euro to have a material impact
on its business, operations, or financial position.

Derivative Financial Instruments

The Company enters into forward sales and purchase contracts and currency
options to manage currency risk resulting from purchase and sale commitments
denominated in foreign currencies (principally Australian dollar and Canadian
dollar) and relating to particular anticipated but not yet committed purchases
and sales expected to be denominated in those currencies. All of the currency
derivatives expire within one year and are for United States dollar
equivalents. At December 31, 1998, the Company had forward contracts to sell
foreign currencies with face values of $4 million (1997-$1 million) and
forward contracts to buy foreign currencies with face values of $1 million in
1997. The fair market value of the forward contracts to sell at December 31,
1998 and 1997 and the forward contracts to buy at December 31, 1997
approximated the carrying value. The Company had no outstanding option
contracts at December 31, 1998 and 1997.

In accordance with Statement of Financial Accounting Standards No. 52,
("SFAS 52"), "Foreign Currency Translation," a transaction is classified as a
hedge when the foreign currency is designated

23
as, and is effective as, a hedge of a foreign currency commitment and the
foreign currency commitment is firm. A hedge is considered by the Company to
be effective when the transaction reduces the currency risk on its foreign
currency commitments. If a transaction does not meet the criteria to qualify
as a hedge, it is considered to be speculative. For a foreign currency
commitment that is classified as a hedge, any gain or loss on the commitment
is deferred and included in the basis of the underlying instrument. Any
realized and unrealized gains or losses associated with foreign currency
commitments that are classified as speculative are recognized in the current
period and are included in Selling and Administration in the consolidated
statements of income. If a foreign currency transaction previously considered
as a hedge is terminated before the transaction date of the related
commitment, any deferred gain or loss shall continue to be deferred and
included in the basis of the underlying investment. Premiums paid for currency
options and gains or losses on forward sales and purchase contracts are not
material to operating results.

Depending on market conditions, the Company may enter into futures contracts
and put and call option contracts in order to reduce the impact of metal price
fluctuations, principally in copper, lead and zinc. In accordance with SFAS
No. 80, "Accounting for Futures Contracts," futures contracts are classified
as a hedge when the item to be hedged exposes the Company to price risk and
the futures contract reduces that risk exposure. Futures contracts that relate
to transactions that are expected to occur are accounted for as a hedge when
the significant characteristics and expected terms of the anticipated
transaction are identified and it is probable that the anticipated transaction
will occur. If a transaction does not meet the criteria to qualify as a hedge,
it is considered to be speculative. Any gains or losses associated with
futures contracts which are classified as speculative are recognized in the
current period. If a futures contract that has been accounted for as a hedge
is closed or matures before the date of the anticipated transaction, the
accumulated change in value of the contract is carried forward and included in
the measurement of the related transaction. Option contracts are accounted for
in the same manner that futures contracts are accounted for.

Year 2000 Computer Systems

The Company views the impact of the Year 2000 as a critical business issue.
It manages the process by having each business segment identify its own Year
2000 issues and develop appropriate corrective action steps, while instituting
a series of management processes that coordinate and manage the process across
business segment boundaries and the corporate center. The process includes
corporate oversight and provides for consistent attention to progress made
against planned activities and a forum for issue resolution at the business
segment and corporate levels with periodic assessments made by independent
parties which are reported to the Board. As a result of the Spin-Off of Arch
Chemicals, the Company entered into an information technology services
agreement with Arch Chemicals stipulating that Arch Chemicals will provide
various technology related services including maintenance of the centralized
computer center and the wide area network as well as provide services in
support of the Company's Year 2000 initiative.

The Company recognizes that the Year 2000 issue is not limited to computer
programs normally associated with the processing of business information, but
can also be found in certain equipment and processes used in manufacturing and
operation of facilities. It also recognizes that the potential exists for Year
2000 issues within the supply chain. The Company's approach was to subdivide
the program into four distinct areas: 1) Business Systems; 2) Manufacturing;
3) Supply Chain; and 4) Infrastructure.

In the business systems area, the Company has positioned itself very
favorably with respect to software and equipment that is Year 2000 compliant.
In 1994, the Company began implementing a Year 2000 compliant client-server
system, Peoplesoft, to address payroll and human resource needs and it
presently uses such system in all businesses. In 1993, the Company began
implementing for all domestic businesses, except the Metals segment, a client-
server system, SAP, for core business requirements as a vehicle to obtain
certain improvements in the business processes. With the

24
exception of the Metals segment, SAP is currently utilized in a majority of
its domestic businesses. Since SAP was also a certified Year 2000 compliant
solution, migration plans were adjusted to take advantage of the business
benefit while eliminating the cost of remediating old legacy system code.
Deployment has been aggressive with all domestic functions and locations
(except Metals) transferred to SAP. In the few instances where SAP is not
utilized, replacement systems are scheduled for June 1999. Offshore processing
systems will continue using existing systems. All systems have been examined
with Year 2000 upgrades targeted for completion by the second quarter of 1999.

The Metals segment is addressing the Year 2000 issue by converting existing
programs to be compliant. It has completed code converting its entire software
portfolio, and is currently heavily engaged in the testing phase of its plan.
Completion of all systems is targeted for June 1999.

In the manufacturing area, plant level employees and independent assessments
were used to identify places where embedded systems exist and categorize them
by the potential impact to the business. Sixteen items, which have the
potential for causing process shutdowns or unsafe conditions, remain to be
remediated or replaced. The plan, which takes maximum advantage of "planned
outages" in order to minimize the impact on operations, targets completion by
May 1999.

The supply chain area has seen much activity in terms of assessing vendor
Year 2000 preparedness, identifying alternate sources, as well as insertion of
certain Year 2000 compliance language in all purchase orders issued. The
Company has completed a review of single source and critical suppliers. During
1999, the Company will continue to re-evaluate its suppliers on a periodic
basis.

Personal computers, networks, and PBX's represent the majority of items in
the Company's infrastructure area. The Company has deployed new Pentium Year
2000 compliant equipment in large numbers to support its SAP deployment
program and for internal standards compliance. In addition, the Company is
currently utilizing software tools to test the entire PC inventory for Year
2000 compliance and this is expected to be completed by the first quarter of
1999. The Company's wide area network is already Year 2000 compliant as is
most of its PBX and voice mail systems. The non-compliant equipment is planned
to be replaced with compliant versions as leases expire, but no later than
June 1999.

The Company believes its Year 2000 initiative is on track to address all
significant Year 2000 issues by the middle of 1999, and is supported by the
findings of an independent assessment completed in December 1998. Plans
include additional assessments throughout 1999.

Plans for a worst case scenario in the unlikely event of a major failure due
to a Year 2000 problem which causes significant disruptions to business
operations have been formulated. In the area of business systems, management
believes that the Company, with most of its operating units already migrated
to Year 2000 compliant solutions, has already significantly reduced its
potential risk. As added protection, software migration plans to new releases
of SAP and Peoplesoft, which are planned in 1999, include Year 2000 testing
scenarios. The Company will continue to monitor progress in the system testing
of the converted legacy systems and will redirect existing resources and / or
utilize outside assistance in the event of slippage against plans.

The Company continues to focus attention on the manufacturing area. It has
deployed several independent initiatives to identify embedded systems, develop
comprehensive equipment lists, and obtain vendor certifications of Year 2000
compliance. It has developed plans for further testing with respect to key
manufacturing equipment and systems, during periods of scheduled outages.

The Company will continue to monitor progress against plans in the business
systems, manufacturing, infrastructure, and supply chain areas, and take
corrective action should slippage

25
occur. The use of vendor-supplied Year 2000 compliant solutions, coupled with
substantive pre-testing of key systems and a strong management commitment and
oversight are the cornerstone of the Company's Year 2000 program.

Nonetheless, in the unlikely occurrence of some unforeseen event, emergency
teams skilled in each of the disciplines will be formed during the last half
of 1999. They will be deployed to assist local personnel in the event of a
Year 2000 issue at the turn of the millennium.

The Company does not expect Year 2000 initiative costs to exceed $5 million
inclusive of the cost for deploying SAP and Peoplesoft and related
infrastructure over the next 12 months.

The dates on which the Company believes the Year 2000 Project will be
completed and the SAP computer systems will be implemented are based on
management's best estimates, which are derived utilizing numerous assumptions
of future events, including the continued availability of certain resources,
third-party modification plans and other factors. However, there can be no
guarantee that these estimates will be achieved, or that there will not be a
delay in, or increased costs associated with, the implementation of the Year
2000 Project. Specific factors that might cause differences between the
estimates and actual results include, but are not limited to, the availability
and cost of personnel trained in these areas, the ability to locate and
correct all relevant computer codes, timely responses to and corrections by
third-parties and suppliers, the ability to implement interfaces between the
new systems and the systems not being replaced, and similar uncertainties. Due
to the general uncertainty inherent in the Year 2000 problem, resulting in
part from the uncertainty of the Year 2000 readiness of third parties and the
interconnection of global businesses, the Company cannot ensure its ability to
timely and cost-effectively resolve the problems associated with the Year 2000
issue that may affect its operations and business, or expose it to third-party
liability.

Risk Management

The Company periodically evaluates risk retention and insurance levels for
product liability, property damage and other potential areas of risk. Based on
the cost and availability of insurance and the likelihood of a loss occurring,
management decides the amount of insurance coverage to purchase from
unaffiliated companies and the appropriate amount of risk to retain. The
current levels of risk retention are believed to be appropriate and are
consistent with those of other companies in the various industries in which
the Company operates.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

The Company is exposed to market risk in the normal course of its business
operations due to its operations in different foreign currencies, its
purchases of certain commodities, and its ongoing investing and financing
activities. The risk of loss can be assessed from the perspective of adverse
changes in fair values, cash flows and future earnings. The Company has
established policies and procedures governing its management of market risks
and the use of financial instruments to manage exposure to such risks.

The primary purpose of the Company's foreign currency hedging activities is
to manage currency risk resulting from purchase and sale commitments
denominated in foreign currencies (principally Australian dollar and Canadian
dollar) and relating to particular anticipated purchases and sales expected to
be denominated in those same foreign currencies. Foreign currency hedging
activity is not material to the Company's consolidated financial position,
results of operations, or cash flow.

Certain raw materials, namely copper, lead, and zinc used primarily in the
Company's Metals and Winchester segments products are subject to price
volatility. Depending on market conditions, the Company may enter into futures
contracts and put and call option contracts in order to reduce the

26
impact of metal price fluctuations. As of December 31, 1998, the Company
maintained open positions on futures contracts totalling $44 million. Assuming
a hypothetical 10% increase in commodity prices which are currently hedged,
the Company would experience a $4.4 million increase in its cost of inventory
purchased, which would be offset by a corresponding increase in the value of
related hedging instruments.

The Company is exposed to changes in interest rates primarily as a result of
its investing and financing activities. Investing activity is not material to
the Company's consolidated financial position, results of operations, or cash
flow. The financing activities of the Company are comprised primarily of long-
term fixed rate debt utilized to fund business operations and maintain
liquidity. As of December 31, 1998, the Company had long-term borrowings of
$230 million outstanding at varying fixed rates. Assuming a decrease of 100
basis points in the interest rate for borrowings of a similar nature which the
Company becomes unable to capitalize on in the short-term as a result of the
structure of its fixed rate financings, future cash flows would be affected by
approximately $2.3 million. The Company has interest rate swaps to hedge
underlying debt obligations. Interest rate swap activity is not material to
the Company's consolidated financial position, results of operations, or cash
flow.

If the actual change in interest rates or commodities pricing is
substantially different than expected, the net impact of interest rate risk or
commodity risk on the Company's cash flow may be materially different than
that disclosed above.

The Company does not enter into any derivative financial instruments for
trading purposes.

27
Item 8. Consolidated Financial Statements and Supplementary Data

Management Report on Financial Statements

Management is responsible for the preparation and integrity of the
accompanying consolidated financial statements. These financial statements
have been prepared in conformity with generally accepted accounting principles
and, where necessary, involve amounts based on management's best judgments and
estimates. Management also prepared the other information in this annual
report and is responsible for its accuracy and consistency with the financial
statements.

The Company's system of internal controls is designated to provide
reasonable assurance as to the integrity and reliability of the financial
statements, the protection of assets from unauthorized use or disposition, and
the prevention and detection of fraudulent financial reporting. This system,
which is reviewed regularly, consists of written policies and procedures, an
organizational structure providing delegation of authority and segregation of
responsibility and is monitored by an internal audit department. The Company's
independent auditors also review and test the internal control system along
with tests of accounting procedures and records to the extent that they
consider necessary in order to issue their opinion on the financial
statements. Management believes that the system of internal accounting
controls meets the objectives noted above.

Management also recognizes its responsibility for fostering a strong ethical
climate so that the Company's affairs are conducted according to the highest
standards of personal and corporate conduct. This responsibility is
communicated to all employees in a variety of ways, including personal
training sessions.

The Ethics Program is based upon a document called "The Standards of Ethical
Business Practices." The standards address, among other things, the necessity
of ensuring open communication within the Company; potential conflicts of
interest; compliance with all domestic and foreign laws, including those
relating to financial disclosure; and the confidentiality of proprietary
information. The Company maintains a systematic program to assess compliance
with these standards and has established confidential ways, including a
confidential telephone help-line (1-800-362-8348), for employees and suppliers
to ask questions and share concerns.

The Audit Committee of the Board of Directors, composed solely of outside
directors, meets periodically with the independent auditors, management and
the Company's internal auditors to review the work of each and to evaluate
accounting, auditing, internal controls and financial reporting matters. The
Audit Committee annually recommends to the Board of Directors the appointment
of independent auditors, subject to shareholder approval. The independent
auditors and the Company's internal audit department have independent and free
access to the Audit Committee.

/s/ Donald W. Griffin /s/ Anthony W. Rugglero

Donald W. Griffin Anthony W. Ruggiero
Chairman, Executive Vice President and
President and Chief Financial Officer
Chief Executive Officer


28
Independent Auditors' Report

To the Board of Directors and Shareholders of Olin Corporation

We have audited the accompanying consolidated balance sheets of Olin
Corporation and subsidiaries as of December 31, 1998 and 1997 and the related
consolidated statements of income, shareholders' equity and cash flows for
each of the years in the three-year period ended December 31, 1998. These
consolidated financial statements are the responsibility of the Company's
management. Our responsibility is to express an opinion on these consolidated
financial statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the consolidated financial
statements are free of material misstatement. An audit includes examining, on
a test basis, evidence supporting the amounts and disclosures in the
consolidated financial statements. An audit also includes assessing the
accounting principles used and significant estimates made by management, as
well as evaluating the overall financial statement presentation. We believe
that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements, referred to above,
present fairly, in all material respects, the financial position of Olin
Corporation and subsidiaries as of December 31, 1998 and 1997, and the results
of their operations and their cash flows for each of the years in the three-
year period ended December 31, 1998 in conformity with generally accepted
accounting principles.

/s/ KPMG LLP
Stamford, Connecticut
January 26, 1999

29
Consolidated Balance Sheets
December 31
($ in millions except share data)

<TABLE>
<CAPTION>
1998 1997
------ ------
<S> <C> <C>
Assets
Current Assets:
Cash and Cash Equivalents.................................... $ 50 $ 157
Short-Term Investments....................................... 25 28
Receivables, Net:
Trade...................................................... 162 166
Other...................................................... 30 23
Inventories, Net of LIFO Reserve of $63 ($86 in 1997)........ 199 208
Income Taxes Receivable...................................... 33 --
Other Current Assets......................................... 18 20
------ ------
Total Current Assets....................................... 517 602
Investments and Advances--Affiliated Companies at Equity....... 12 10
Property, Plant and Equipment, Net............................. 475 517
Other Assets................................................... 68 122
Net Assets of Discontinued Operations.......................... 505 456
------ ------
Total Assets................................................... $1,577 $1,707
====== ======
Liabilities and Shareholders' Equity
Current Liabilities:
Current Installments of Long-Term Debt....................... $ 1 $ 8
Accounts Payable............................................. 118 137
Income Taxes Payable......................................... 5 5
Accrued Liabilities.......................................... 168 179
------ ------
Total Current Liabilities.................................. 292 329
Long-Term Debt................................................. 230 262
Other Liabilities.............................................. 265 237
------ ------
Total Liabilities.......................................... 787 828
------ ------
Commitments and Contingencies
Shareholders' Equity:
Common Stock, Par Value $1 Per Share:
Authorized, 120,000,000 Shares
Issued and Outstanding 45,922,864 Shares (48,840,234 in
1997)..................................................... 46 49
Additional Paid-In Capital................................... 243 348
Accumulated Other Comprehensive Loss......................... (25) (24)
Retained Earnings............................................ 526 506
------ ------
Total Shareholders' Equity................................. 790 879
------ ------
Total Liabilities and Shareholders' Equity..................... $1,577 $1,707
====== ======
</TABLE>

The accompanying Notes to Financial Statements are an integral part of the
financial statements.

30
Consolidated Statements of Income
Years ended December 31
($ in millions, except per share data)

<TABLE>
<CAPTION>
1998 1997 1996
------ ------ ------
<S> <C> <C> <C>
Sales..................................................... $1,426 $1,499 $1,758
Operating Expenses:
Cost of Goods Sold...................................... 1,161 1,203 1,396
Selling and Administration.............................. 123 132 155
Research and Development................................ 10 8 20
Interest Expense.......................................... 17 24 27
Interest Income........................................... 3 10 2
Other Income.............................................. 4 5 11
Gain (Loss) on Sales and Restructurings of Businesses
and Spin-off Costs....................................... (63) -- 179
------ ------ ------
Income from Continuing Operations Before Taxes............ 59 147 352
Income Taxes.............................................. 21 50 125
------ ------ ------
Income from Continuing Operations......................... 38 97 227
Income from Discontinued Operations, Net of Taxes......... 40 56 53
------ ------ ------
Net Income................................................ 78 153 280
Preferred Dividends....................................... -- -- 4
------ ------ ------
Net Income Available to Common Shareholders............... $ 78 $ 153 $ 276
====== ====== ======
Net Income Per Common Share:
Basic:
Continuing Operations................................... $ 0.79 $ 1.91 $ 4.30
Discontinued Operations................................. 0.85 1.11 1.04
------ ------ ------
Total Net Income...................................... $ 1.64 $ 3.02 $ 5.34
====== ====== ======
Diluted:
Continuing Operations................................... $ 0.79 $ 1.90 $ 4.26
Discontinued Operations................................. 0.84 1.10 1.01
------ ------ ------
Total Net Income...................................... $ 1.63 $ 3.00 $ 5.27
====== ====== ======
</TABLE>

The accompanying Notes to Financial Statements are an integral part of the
financial statements.

31
Consolidated Statements of Shareholders' Equity
($ in millions, except share data)

<TABLE>
<CAPTION>
Common Stock Accumulated ESOP
----------------- Additional Other Preferred Total
Shares Par Paid-In Comprehensive Retained Stock Par ESOP Shareholders'
Issued Value Capital Loss Earnings Value Obligations Equity
---------- ----- ---------- ------------- -------- --------- ----------- -------------
<S> <C> <C> <C> <C> <C> <C> <C> <C>
Balance at January 1,
1996................... 49,418,410 $49 $ 398 $ (4) $ 343 $ 77 $(22) $ 841
Comprehensive Income:
Net Income............. -- -- -- -- 280 -- -- 280
Translation Adjustment. -- -- -- (5) -- -- -- (5)
Comprehensive Income... -- -- -- -- -- -- -- 275
Dividends Paid:
Common Stock ($1.20 per
share)................ -- -- -- -- (60) -- -- (60)
ESOP Preferred Stock
($5.97 per share)..... -- -- -- -- (4) -- -- (4)
Issuance of ESOP
Preferred Stock........ -- -- -- -- -- 9 -- 9
Redemption of ESOP
Preferred Stock........ 2,343,401 2 84 -- -- (86) -- --
Spin-off of Primex
Technologies, Inc...... -- -- -- -- (145) -- -- (145)
Reduction in ESOP
Obligations............ -- -- -- -- -- -- 17 17
Stock Options Exercised. 347,232 1 10 -- -- -- -- 11
Other Transactions...... 93,716 -- 2 -- -- -- -- 2
---------- --- ----- ---- ----- ---- ---- -----
Balance at December 31,
1996................... 52,202,759 52 494 (9) 414 -- (5) 946
Comprehensive Income:
Net Income............. -- -- -- -- 153 -- -- 153
Translation Adjustment. -- -- -- (15) -- -- -- (15)
Comprehensive Income... -- -- -- -- -- -- -- 138
Dividends Paid:
Common Stock ($1.20 per
share)................ -- -- -- -- (61) -- -- (61)
Reduction in ESOP
Obligations............ -- -- -- -- -- -- 5 5
Stock Options Exercised. 413,258 -- 13 -- -- -- -- 13
Stock Repurchase........ (3,827,100) (3) (160) -- -- -- -- (163)
Other Transactions...... 51,317 -- 1 -- -- -- -- 1
---------- --- ----- ---- ----- ---- ---- -----
Balance at December 31,
1997................... 48,840,234 49 348 (24) 506 -- -- 879
Comprehensive Income:
Net Income............. -- -- -- -- 78 -- -- 78
Translation Adjustment. -- -- -- 1 -- -- -- 1
Minimum Pension
Liability Adjustment.. -- -- -- (2) -- -- -- (2)
Comprehensive Income... -- -- -- -- -- -- -- 77
Dividends Paid:
Common Stock ($1.20 per
share)................ -- -- -- -- (58) -- -- (58)
Stock Options Exercised. 84,528 -- 3 -- -- -- -- 3
Stock Repurchase........ (3,096,100) (3) (109) -- -- -- -- (112)
Other Transactions...... 94,202 -- 1 -- -- -- -- 1
---------- --- ----- ---- ----- ---- ---- -----
Balance at December 31,
1998................... 45,922,864 $46 $ 243 $(25) $ 526 $ -- $ -- $ 790
========== === ===== ==== ===== ==== ==== =====
</TABLE>

The accompanying Notes to Financial Statements are an integral part of the
financial statements.

32
Consolidated Statements of Cash Flows
Years ended December 31 ($ in millions)

<TABLE>
<CAPTION>
1998 1997 1996
----- ---- ----
<S> <C> <C> <C>
Operating Activities
Income from Continuing Operations.......................... $ 38 $ 97 $227
Adjustments to Reconcile Income from Continuing Operations
to Net Cash and Cash Equivalents Provided by Operating
Activities:
Earnings of Non-consolidated Affiliates.................. -- (1) (2)
Depreciation............................................. 76 76 84
Amortization of Intangibles.............................. 2 2 2
Deferred Taxes........................................... 104 41 (78)
Loss (Gain) on Sales and Restructurings of Businesses and
Spin-off Costs......................................... 63 -- (188)
Change in Assets and Liabilities Net of Purchases and
Sales of Businesses:
Receivables............................................ (5) (19) 26
Inventories............................................ 7 (14) 18
Other Current Assets................................... 4 (5) 3
Accounts Payable and Accrued Liabilities............... (57) (45) (38)
Income Taxes Payable................................... (33) (122) 122
Other Noncurrent Liabilities........................... (8) (36) (11)
Other Operating Activities............................... (13) (7) 13
----- ---- ----
Net Cash and Cash Equivalents Provided by Operating
Activities from Continuing Operations..................... 178 (33) 178
Discontinued Operations:
Net Income................................................ 40 56 53
Change in Net Assets...................................... (38) (35) (8)
----- ---- ----
Net Operating Activities............................... 180 (12) 223
----- ---- ----
Investing Activities
Capital Expenditures....................................... (78) (76) (74)
Disposition of Property, Plant and Equipment............... -- -- 23
Business Acquired in Purchase Transactions................. -- (2) --
Proceeds from Sales of Businesses.......................... 4 5 565
Purchases of Short-Term Investments........................ (25) (126) (87)
Proceeds from Sale of Short-Term Investments............... 28 185 --
Investments and Advances--Affiliated Companies at Equity... (3) (84) (103)
Repayments of Advances From a Joint Venture................ -- 98 --
Other Investing Activities................................. (4) (4) --
----- ---- ----
Net Investing Activities............................... (78) (4) 324
----- ---- ----
Financing Activities
Long-Term Debt Repayments.................................. (39) (137) (62)
Short-Term Debt Repayments................................. -- -- (58)
Borrowings under Line of Credit Assumed by Primex
Technologies, Inc........................................ -- -- 125
Purchase of Olin Common Stock.............................. (112) (163) --
Repayment from ESOP........................................ -- 5 17
Stock Options Exercised.................................... 3 13 11
Dividends Paid............................................. (58) (61) (64)
Other Financing Activities................................. (3) (2) --
----- ---- ----
Net Financing Activities............................... (209) (345) (31)
----- ---- ----
Net (Decrease) Increase in Cash and Cash Equivalents... (107) (361) 516
Cash and Cash Equivalents, Beginning of Year............... 157 518 2
----- ---- ----
Cash and Cash Equivalents, End of Year................. $ 50 $157 $518
===== ==== ====
Cash Paid (Received) for Interest and Income Taxes:
Interest $ 17 $ 27 $ 40
Income Taxes, Net of Refunds............................. $ (31) $166 $104
===== ==== ====
</TABLE>

The accompanying Notes to Financial Statements are an integral part of the
financial statements.

33
Notes to Financial Statements
($ in millions, except share data)

Accounting Policies

The preparation of the consolidated financial statements requires estimates
and assumptions that affect amounts reported and disclosed in the financial
statements and related notes. Actual results could differ from those
estimates. Certain reclassifications were made to prior year amounts to
conform with the 1998 presentation. In addition, the financial statements have
been restated to reflect Arch Chemicals, Inc. ("Arch Chemicals") as a
discontinued operation as a result of its spin-off which occurred on February
8, 1999.

Basis of Presentation

The consolidated financial statements include the accounts of Olin
Corporation ("Olin" or "Company") and all majority-owned subsidiaries.
Investments in 20-50% owned affiliates are accounted for on the equity method.
Accordingly, the Company's share of earnings or losses of these affiliates is
included in consolidated net income.

Foreign Currency Translation

Foreign affiliates' balance sheet amounts are translated at the exchange
rates in effect at year-end, and income statement amounts are translated at
the average rates of exchange prevailing during the year. Translation
adjustments are included in Accumulated Other Comprehensive Loss. Where
foreign affiliates operate in highly inflationary economies non-monetary
amounts are translated at historical exchange rates while monetary assets and
liabilities are translated at the current rate with the related adjustments
reflected in the Consolidated Statements of Income.

Cash and Cash Equivalents

All highly liquid investments with a maturity of three months or less at the
date of purchase are considered to be cash equivalents.

Short-Term Investments

Marketable debt securities are accounted for in accordance with Statement of
Financial Accounting Standards (SFAS) No. 115, "Accounting for Certain
Investments in Debt and Equity Securities." Accordingly, the Company has
classified its marketable debt securities as available-for-sale which are
reported at fair market value with unrealized gains and losses included in
Shareholders' Equity net of applicable taxes. The fair value of marketable
securities is determined by quoted market prices. Unrealized gains and losses
in 1998 and 1997 were insignificant. Realized gains and losses on sales of
investments, as determined on the specific identification method and declines
in value of securities judged to be other-than-temporary are included in Other
Income in the Consolidated Statements of Income. Interest and dividends on all
securities are included in Interest Income and Other Income, respectively.

All investments which have original maturities between three and twelve
months are considered short-term investments and consist of debt securities
such as commercial paper, time deposits, certificates of deposit, bankers
acceptances, repurchase agreements, and marketable direct obligations of the
United States Treasury.

Inventories

Inventories are valued principally by the dollar value last-in, first-out
(LIFO) method of inventory accounting; in aggregate, such valuations are not
in excess of market. Cost for other inventories have

34
been determined principally by the average-cost and first-in, first out (FIFO)
methods. Elements of costs in inventories include raw materials, direct labor
and manufacturing overhead.

Property, Plant and Equipment

Property, plant and equipment are recorded at cost. Depreciation is computed
on a straight-line basis over the estimated useful lives of the related
assets. Leasehold improvements are amortized over the term of the lease or the
estimated useful life of the improvement, whichever is shorter. Start-up costs
are expensed as incurred.

Comprehensive Income

As of January 1, 1998, the Company adopted SFAS No. 130, "Reporting
Comprehensive Income," which established standards for the reporting and
display of comprehensive income and its components in the financial
statements. Accumulated Other Comprehensive Loss at December 31, 1998 includes
cumulative translation adjustments of $23 ($24 at December 31, 1997) and $2 of
minimum pension liability. The Company does not provide for U.S. income taxes
on foreign currency translation adjustments since it does not provide for such
taxes on undistributed earnings of foreign subsidiaries.

Goodwill

Goodwill, the excess of the purchase price of the acquired businesses over
the fair value of the respective net assets, is amortized principally over 30
years on a straight-line basis. The Company periodically reviews the value of
its goodwill to determine if any impairment has occurred. The Company assesses
the potential impairment of recorded goodwill and other long-lived assets by
comparing the undiscounted value of expected future operating cash flows in
relation to the book value of the goodwill and related long-lived assets. An
impairment would be recorded based on the estimated fair value.

Environmental Liabilities and Expenditures

Accruals for environmental matters are recorded when it is probable that a
liability has been incurred and the amount of the liability can be reasonably
estimated, based upon current law and existing technologies. These amounts,
which are not discounted and exclusive of claims against third parties, are
adjusted periodically as assessment and remediation efforts progress or
additional technical or legal information becomes available. Environmental
remediation costs are charged to expense. Environmental costs are capitalized
if the costs increase the value of the property and/or mitigate or prevent
contamination from future operations.

Income Taxes

Deferred taxes are provided for differences between the financial statement
and tax bases of assets and liabilities using enacted tax rates in effect for
the year in which the differences are expected to reverse.

Derivative Financial Instruments

The Company enters into forward sales and purchase contracts and currency
options to manage currency risk resulting from purchase and sale commitments
denominated in foreign currencies (principally Australian dollar and Canadian
dollar) and relating to particular anticipated but not yet committed purchases
and sales expected to be denominated in those currencies. All of the currency
derivatives expire within one year and are for United States dollar
equivalents. At December 31, 1998,

35
the Company had forward contracts to sell foreign currencies with face values
of $4 (1997-$1) and no forward contracts to buy (1997-$1). The fair market
value of the forward contracts to sell was $4 and $1 at December 31, 1998 and
1997, respectively. The fair market value of the forward contracts to buy was
$1 at December 31, 1997. The Company had no outstanding option contracts at
December 31, 1998 and 1997. The counterparties to the options and contracts
are major financial institutions. The risk of loss to the Company in the event
of nonperformance by a counterparty is not significant.

In accordance with SFAS No. 52, "Foreign Currency Translation," a
transaction is classified as a hedge when it is designated as, and is
effective as, a hedge of a foreign currency commitment and the foreign
currency commitment is firm. A hedge is considered by the Company to be
effective when the transaction reduces the currency risk on its foreign
currency commitments. If a transaction does not meet the criteria to qualify
as a hedge, it is considered to be speculative. For a foreign currency
commitment that is classified as a hedge, any gain or loss on the commitment
is deferred and included in the basis of the underlying item. Any unrealized
gains or losses associated with foreign currency commitments that are
classified as speculative are recognized in the current period. Foreign
currency gains and losses realized are included in the Consolidated Statements
of Income in Selling and Administration. If a foreign currency transaction
previously considered as a hedge is terminated before the transaction date of
the related commitment, any deferred gain or loss shall continue to be
deferred and included in the basis of the underlying item. Premiums paid for
currency options and gains or losses on forward sales and purchase contracts
were not material to operating results.

Foreign currency exchange gains (losses), net of taxes, were $(1) in 1998,
$1 in 1997, and less than $(1) in 1996.

Depending on market conditions, the Company may enter into futures contracts
and put and call option contracts in order to reduce the impact of metal price
fluctuations, principally in copper, lead and zinc. In accordance with SFAS
No. 80, "Accounting for Futures Contracts," futures contracts are classified
as a hedge when the item to be hedged exposes the Company to price risk and
the futures contract reduces that risk exposure. Futures contracts that relate
to transactions that are expected to occur are accounted for as a hedge when
the significant characteristics and expected terms of the anticipated
transaction are identified and it is probable that the anticipated transaction
will occur. If a transaction does not meet the criteria to qualify as a hedge,
it is considered to be speculative. Any gains or loses associated with futures
contracts which are classified as speculative are recognized in the current
period. If a futures contract that has been accounted for as a hedge is closed
or matures before the date of the anticipated transaction, the accumulated
change in value of the contract is carried forward and included in the
measurement of the related transaction. Option contracts are accounted for in
the same manner that futures contracts are accounted for. At December 31,
1998, the Company has open positions in futures contracts totaling $44 (1997-
$37). If these futures contracts had been settled on December 31, 1998, the
Company would have incurred a loss of $3. Gains (losses) on futures contracts,
net of taxes, were $(2) in 1998 and $1 in 1997 and 1996.

Financial Instruments

The carrying values of cash and cash equivalents, accounts receivable and
accounts payable approximated fair values due to the short-term maturities of
these instruments. The fair value of the Company's long-term debt was
determined based on current market rates for debt of the same risk and
maturities. At December 31, 1998, the estimated fair value of debt was $235
(1997-$277). The fair values of currency forward contracts were estimated
based on quoted market prices for contracts with similar terms.

Stock-Based Compensation

The Company accounts for stock-based compensation under SFAS No. 123,
"Accounting for Stock-Based Compensation." As allowed under SFAS No. 123, the
Company has chosen to continue to account for stock-based compensation cost in
accordance with Accounting Principles Board Opinion

36
No. 25, "Accounting for Stock Issued to Employees." Under this option,
compensation cost is recorded when the fair market value of the Company's
stock at the date of grant for fixed options exceeds the exercise price of the
stock option. The Company's policy is to grant stock options at a value equal
to its common stock's fair market value on the date of the grant. Compensation
cost for restricted stock awards is accrued over the life of the award based
on the quoted market price of the Company's stock at the date of the award.

Earnings Per Share

Basic earnings per share are computed by dividing net income less the ESOP
preferred stock dividend requirement (to the date of its redemption in 1996),
and the redemption adjustment (excess of fair value over book value of ESOP
shares redeemed) by the weighted average number of common shares outstanding.
In December 1996, the Company redeemed the ESOP preferred stock with shares of
common stock of equivalent value.

Diluted earnings per share reflect the dilutive effect of stock options and
assumed the conversion of outstanding ESOP preferred stock, until its
redemption in December 1996, into an equivalent number of common shares at the
date of issuance. Net income was reduced by an additional ESOP contribution
(differential between the common and the ESOP preferred dividend rates under
an assumed conversion) necessary to satisfy the debt service requirement.

<TABLE>
<CAPTION>
Computation of Earnings per Share 1998 1997 1996
- --------------------------------- ------- ------- -------
<S> <C> <C> <C>
Basic earnings per share
Income from continuing operations...................... $ 38 $ 97 $ 227
Less ESOP preferred dividends, net of tax benefit...... -- -- (4)
Redemption adjustment.................................. -- -- (8)
------- ------- -------
$ 38 $ 97 $ 215
------- ------- -------
Basic shares (in thousands)............................ 47,643 50,519 49,992
------- ------- -------
Basic earnings per share-continuing operations......... $ 0.79 $ 1.91 $ 4.30
======= ======= =======
Diluted earnings per share
Income from continuing operations...................... $ 38 $ 97 $ 227
Less additional ESOP contribution...................... -- -- (4)
------- ------- -------
$ 38 $ 97 $ 223
------- ------- -------
Diluted Shares (in thousands):
Basic shares......................................... 47,643 50,519 49,992
Assumed conversion ESOP preferred stock.............. -- -- 1,950
Stock options........................................ 224 368 369
------- ------- -------
47,867 50,887 52,311
------- ------- -------
Diluted earnings per share-continuing operations....... $ 0.79 $ 1.90 $ 4.26
======= ======= =======
</TABLE>

The Board of Directors has authorized the Company to purchase up to 10
million shares of common stock of the Company under two share repurchase
programs which began in January of 1997. During 1998 and 1997 the Company
repurchased 3.1 million and 3.8 million shares, respectively. It is expected
that the programs will be completed during 1999.

37
Short-term Investments

<TABLE>
<CAPTION>
1998 1997
---- ----
<S> <C> <C>
Tax exempt...................................................... $20 $28
Certificates of deposit......................................... 4 --
U.S. Government and government agencies......................... 1 --
--- ---
Total......................................................... $25 $28
=== ===
</TABLE>

Trade Receivables

Allowance for doubtful items was $6 at December 31, 1998 and 1997.
Provisions charged to operations were $1 in 1998, 1997 and 1996. Bad debt
write-offs, net of recoveries were $1 in 1998 and $2 in 1997 and 1996.

Inventories

<TABLE>
<CAPTION>
1998 1997
---- ----
<S> <C> <C>
Raw materials and supplies.................................... $113 $108
Work in process............................................... 102 113
Finished goods................................................ 47 73
---- ----
262 294
LIFO reserves................................................. (63) (86)
---- ----
Inventory, net.............................................. $199 $208
==== ====
</TABLE>

Inventories valued using the LIFO method comprised 79% and 78% of the total
inventories at December 31, 1998 and 1997, respectively. During 1998, LIFO
inventory quantities were reduced resulting in the liquidation of one LIFO
layer and part of another layer. The effect of this liquidation increased net
income by $1.

Property, Plant and Equipment

<TABLE>
<CAPTION>
Useful Lives 1998 1997
------------ ------ ------
<S> <C> <C> <C>
Land and improvements to land................. 10--20 Years $ 49 $ 49
Buildings and building equipment.............. 10--25 Years 172 169
Machinery and equipment....................... 3--12 Years 1,251 1,266
Leasehold improvements........................ 3 4
Construction in progress...................... 75 58
------ ------
Property, plant and equipment............... 1,550 1,546
Less accumulated depreciation................. 1,075 1,029
------ ------
Property, plant and equipment, net.......... $ 475 $ 517
====== ======
</TABLE>

Leased assets capitalized and included above are not significant.
Maintenance and repairs charged to operations amounted to $109, $92, and $114
in 1998, 1997 and 1996 respectively.

Short-Term Borrowings

At December 31, 1998 and 1997, the Company maintained committed credit
facilities with banks of $254 all of which was available in both years.

Included in the $254 committed credit facility is an unsecured revolving
credit agreement with a group of banks, which provides a maximum borrowing of
$250, and expires in October 2002. The Company may select various floating
rate borrowing options.

38
Long-Term Debt

<TABLE>
<CAPTION>
1998 1997
---- ----
<S> <C> <C>
Notes payable:
7.11%, due 2005.............................................. $ 50 $ 50
7.75%, due 2005.............................................. 11 11
7.97%, due 1999-2002......................................... -- 38
8%, due 2002................................................. 100 100
Industrial development and environmental improvement
obligations:
Payable at interest rates of 1% to 5% which vary with short-
term tax exempt rates, due 2004-2017........................ 35 35
Payable at interest rates of 6% to 7%, due 1999-2008......... 35 36
---- ----
Total senior debt.......................................... 231 270
Amounts due within one year.................................... 1 8
---- ----
Total long-term debt....................................... $230 $262
==== ====
</TABLE>

In June 1995, the Company sold $50 of 7.11% notes with a maturity date of
June 2005. The proceeds from this issue were used to reduce short-term debt
incurred for working capital purposes. At December 31, 1998, there remains
$248 unissued under the medium-term note program registered in May 1994.

During 1992, the Company swapped interest payments on $50 principal amount
of its 8% notes due 2002 to a floating rate (5.15602% at December 31, 1998).
In June 1995, the Company offset this transaction by swapping interest
payments to a fixed rate of 6.485%. The difference between interest paid and
interest received is included as an adjustment to interest expense. A
settlement of the fair market value of the interest rate swap as of December
31, 1998 would result in a receipt of approximately $2. Counterparties to
interest rate swap contracts are major financial institutions. The risk of
loss to the Company in the event of nonperformance by a counterparty is not
significant.

Annual maturities of long-term debt for the next five years are $1 in 1999,
2000 and 2001, and $101 in 2002 and $1 in 2003.

Interest expense incurred on short-term borrowings and long-term debt
totaled $18 in 1998, $25 in 1997 and $29 in 1996; of which $1 was capitalized
in 1998 and 1997 and $2 in 1996.

39
Pension Plans and Retirement Benefits

Essentially all of the Company's domestic pension plans are non-contributory
final-average-pay or flat-benefit plans and all domestic employees are
covered. The Company's funding policy is consistent with the requirements of
federal laws and regulations. The Company provides certain postretirement
health care and life insurance benefits for eligible active and retired
domestic employees.

<TABLE>
<CAPTION>
Other
Pension Postretirement
Benefits Benefits
-------------- --------------
Change in Benefit Obligation 1998 1997 1998 1997
- ---------------------------- ------ ------ ------- -------
<S> <C> <C> <C> <C>
Benefit obligation at beginning of year..... $1,155 $1,021 $ 71 $ 62
Service cost................................ 15 21 1 1
Interest cost............................... 79 79 5 5
Amendments.................................. 1 4 -- --
Actuarial loss (gain)....................... 8 110 2 10
Benefits paid............................... (78) (85) (8) (8)
Acquisitions and divestitures............... -- 5 -- 1
------ ------ ------- -------
Benefit obligation at end of year........... $1,180 $1,155 $ 71 $ 71
====== ====== ======= =======
<CAPTION>
Pension
Benefits
--------------
Change in Plan Assets 1998 1997
- --------------------- ------ ------
<S> <C> <C> <C> <C>
Fair value of plan assets at beginning of
year....................................... $1,224 $1,111
Actual return on plan assets................ 146 178
Employer contribution....................... 3 14
Acquisition asset transfers................. -- 6
Benefits paid............................... (78) (85)
------ ------
Fair value of plan assets at end of year.... $1,295 $1,224
====== ======
<CAPTION>
Other
Pension Postretirement
Benefits Benefits
-------------- --------------
1998 1997 1998 1997
------ ------ ------- -------
<S> <C> <C> <C> <C>
Funded status............................... $ 115 $ 69 $ (71) $ (71)
Unrecognized actuarial (gain) loss.......... (146) (105) 13 11
Unrecognized transition obligation (asset).. (13) (19) -- --
Unrecognized prior service cost............. 29 30 (4) (5)
------ ------ ------- -------
Net amount recognized....................... $ (15) $ (25) $ (62) $ (65)
====== ====== ======= =======
Amounts recognized in the consolidated
balance sheet consist of:
Prepaid benefit cost...................... $ 12 $ 1 $ -- $ --
Accrued benefit liability................. (29) (26) (62) (65)
Accumulated other comprehensive income.... 2 -- -- --
------ ------ ------- -------
Net amount recognized..................... $ (15) $ (25) $ (62) $ (65)
====== ====== ======= =======
</TABLE>

<TABLE>
<CAPTION>
Principal Assumptions 1998 1997
- --------------------- ---- ----
<S> <C> <C>
Weighted average discount rate...................................... 7.0% 7.25%
Weighted average rate of compensation increase...................... 4.5% 4.5%
Long-term rate of return on assets.................................. 9.5% 9.5%
=== ====
</TABLE>

40
<TABLE>
<CAPTION>
Other
Pension Postretirement
Benefits Benefits
---------------- ----------------
Components of Net Periodic Benefit Cost
(Income) 1998 1997 1996 1998 1997 1996
- --------------------------------------- ---- ---- ---- ---- ---- ----
<S> <C> <C> <C> <C> <C> <C>
Service cost............................... $ 15 $ 21 $ 22 $ 1 $ 1 $ 2
Interest cost.............................. 79 79 74 5 5 4
Expected return on plan assets............. (99) (92) (87) -- -- --
Amortization of prior service cost......... 4 3 4 (1) (1) (1)
Recognized actuarial loss (gain)........... (6) (6) (6) 1 1 --
---- ---- ---- --- --- ---
Net periodic benefit cost (income)......... $ (7) $ 5 $ 7 $ 6 $ 6 $ 5
==== ==== ==== === === ===
</TABLE>

The Company's common stock represents approximately 2% of the plan assets at
December 31, 1998 and 1997.

The Company's foreign subsidiaries maintain pension and other benefit plans
which are consistent with statutory practices and are not significant.

The Pension Plan of Olin Corporation provides that if, within three years
following a change of control of the Company, any corporate action is taken or
filing made in contemplation of, among other things, a plan termination or
merger or other transfer of assets or liabilities of the plan, and such
termination, merger or transfer thereafter takes place, plan benefits would
automatically be increased for affected participants (and retired
participants) to absorb any plan surplus.

In addition to the net pension expense above, during 1996 the Company
recorded a $6 curtailment loss in connection with the sale of the isocyanates
business and the spin-off of the Ordnance and Aerospace divisions as Primex
Technologies, Inc. ("Primex").

The accumulated postretirement benefit obligation was determined using the
projected unit credit method and an assumed discount rate of 7% in 1998, 7.25%
in 1997 and 8% in 1996. The assumed health care cost trend rate used for pre-
65 retirees was 8% in 1998, 9.7% in 1997 and 11% in 1996, declining one-half
percent per annum to 5.0%. For post-65 retirees, the Company provides a fixed
dollar benefit which is not subject to escalation.

Assumed health care cost trend rates have a significant effect on the
amounts reported for the postretirement health care plan. A one-percentage-
point increase (decrease) in assumed health care cost trend rates would have a
less than $1 increase (decrease) in total service and interest cost components
and a $3 increase (decrease) in the postretirement benefit obligation.

Subsequent to the spin-off of Arch Chemicals on February 8, 1999, Arch
Chemicals will become liable for the payment of all pension plan benefits
earned by Arch Chemicals employees prior to and following the spin-off who
retire after the spin-off. The Olin pension plan will transfer assets to the
Arch Chemicals pension plan and the amount of the assets will be calculated
based on the relative percentage of the Projected Benefit Obligation. Such
amount may be adjusted to comply with the asset allocation methodology set
forth in section 4044 of the Employee Retirement Income Security Act of 1974,
as amended, if necessary. Olin will remain liable for postretirement, medical
and death benefits provided to all employees who retire prior to the spin-off.
Arch Chemicals will become liable for the payment of all retiree medical and
death benefits earned by Arch Chemicals employees prior to and following the
spin-off who retire after the spin-off. The postretirement plan is an unfunded
plan, therefore no assets were transferred.

In connection with the spin-off of Arch Chemicals in the first quarter of
1999, the Company transferred $7 of postretirement benefit liability to Arch
Chemicals. During 1996 in connection with the spin-off of Primex Technologies,
Inc., the Company transferred $8 of postretirement benefit liability to Primex
Technologies, Inc.

41
Income Taxes

<TABLE>
<CAPTION>
Components of Pretax Income from Continuing Operations 1998 1997 1996
- ------------------------------------------------------ ---- ---- ----
<S> <C> <C> <C>
Domestic...................................................... $ 54 $144 $347
Foreign....................................................... 5 3 5
---- ---- ----
Pretax income................................................. $ 59 $147 $352
==== ==== ====
<CAPTION>
Components of Income Tax Expense (Benefit)
- ------------------------------------------
<S> <C> <C> <C>
Currently payable:
Federal..................................................... $(88) $ 12 $171
State....................................................... 3 (4) 31
Foreign..................................................... 2 1 1
---- ---- ----
(83) 9 203
Deferred...................................................... 104 41 (78)
---- ---- ----
Income tax expense............................................ $ 21 $ 50 $125
==== ==== ====
</TABLE>
The following table accounts for the difference between the actual tax
provision and the amounts obtained by applying the statutory U.S. federal
income tax rate of 35% to the income from continuing operations before taxes.

<TABLE>
<CAPTION>
Effective Tax Rate Reconciliation (Percent) 1998 1997 1996
- ------------------------------------------- ---- ---- ----
<S> <C> <C> <C>
Statutory federal tax rate.................................... 35.0 35.0 35.0
Foreign income tax............................................ (0.3) (0.9) (0.2)
State income taxes, net....................................... 1.7 0.2 3.5
Equity in net income of affiliates............................ (0.9) (0.4) (0.2)
Other, net.................................................... 0.1 0.1 (2.6)
---- ---- ----
Effective tax rate............................................ 35.6 34.0 35.5
==== ==== ====
</TABLE>

<TABLE>
<CAPTION>
Components of Deferred Tax Assets and Liabilities 1998 1997
- ------------------------------------------------- ---- ----
<S> <C> <C>
Deferred tax assets:
Pension and postretirement benefits................................. $ 30 $34
Environmental reserves.............................................. 50 51
Non-deductible reserves............................................. 46 36
Other miscellaneous items........................................... 22 15
---- ---
Total deferred tax assets............................................. 148 136
---- ---
Deferred tax liabilities:
Property, plant and equipment....................................... 69 45
Capital loss........................................................ 80 --
Other miscellaneous items........................................... 24 12
---- ---
Total deferred tax liabilities........................................ 173 57
---- ---
Net deferred tax asset (liability).................................... $(25) $79
==== ===
</TABLE>

Included in Other Current Assets at December 31, 1998 and 1997 are $12 and
$10, respectively, of net current deferred assets.

At December 31, 1998, the Company's share of the cumulative undistributed
earnings of foreign subsidiaries was approximately $25. No provision has been
made for U.S. or additional foreign taxes on the undistributed earnings of
foreign subsidiaries since the Company intends to continue to reinvest these
earnings. Foreign tax credits would be available to substantially reduce or
eliminate any amount of additional U.S. tax that might be payable on these
foreign earnings in the event of distributions or sale.

42
Accrued Liabilities

Included in accrued liabilities are the following items:

<TABLE>
<CAPTION>
1998 1997
----- ----
<S> <C> <C>
Accrued compensation and employee benefits.................... $ 43 $ 50
Environmental................................................. 30 30
Accrued costs for sales and restructurings of businesses and
spin-off costs............................................... 30 --
Accrued insurance............................................. 21 22
Other......................................................... 44 77
----- ----
$ 168 $179
===== ====
</TABLE>

Contributing Employee Ownership Plan

The Contributing Employee Ownership Plan is a defined contribution plan
available to essentially all domestic employees which provides a match of
employee contributions. The plan purchased from the Company approximately 1.3
million shares ($100) of a newly authorized 1.75 million share series of the
Company's ESOP preferred stock, financed by $60 of notes guaranteed by the
Company and a $40 loan from the Company. This loan has been repaid in total to
the Company as of December 31, 1992. In December 1996, the Board of Directors
approved the redemption of all outstanding shares of ESOP preferred stock with
common stock of equivalent value. Upon redemption of the ESOP preferred stock,
the Company is matching employee contributions with common stock. The annual
fixed preferred dividend rate was $5.97 per share and during 1996, dividends
were paid in the first three quarters. Expenses related to the plan are based
on ESOP preferred and common stock allocated to participants. These costs
(primarily the Company's contributions) amounted to $8, $9 and $8 in 1998,
1997 and 1996, respectively. Interest incurred by the plan totaled $1 in 1996,
which was funded by ESOP preferred dividends.

43
Stock Options

Under the stock option plans, options may be granted to purchase shares of
the Company's common stock at not less than fair market value at the date of
grant, and are exercisable for a period not exceeding ten years from that
date. Options granted under the 1996 stock option plan vest over three years.
The 1996 stock option plan is the only plan with stock options available for
future grants. At December 31, 1998, approximately 937,000 shares were
available for future grants. As a result of the spin-off of Arch Chemicals the
outstanding Olin options as of February 8, 1999 were converted into both an
option to purchase Olin common stock and an option to purchase Arch Chemicals
common stock with an adjustment of the exercise price designed to preserve the
"intrinsic value" at the time of the spin-off. Olin will be responsible for
delivering shares of the Olin common stock upon exercise, and Arch Chemicals
will be responsible for the delivering of shares of Arch Chemicals stock upon
exercise. The options maintain the original vesting schedule. The following
table has been restated to reflect the new option price of the Olin options as
a result of the transaction described above. Stock option transactions are as
follows:

<TABLE>
<CAPTION>
Weighted Average
Option Price Option Price
Shares Per Share Per Share
--------- -------------- ----------------
<S> <C> <C> <C>
Outstanding at January 1, 1996....... 1,554,268 $13.34--$20.48 $16.12
Granted............................ 1,441,641 24.68--25.49 24.68
Exercised.......................... (347,232) 13.63--17.53 15.79
Canceled........................... (250,958) 15.04--24.68 23.69
--------- -------------- ------
Outstanding at December 31, 1996..... 2,397,719 13.34--25.49 20.20
Granted............................ 599,200 24.34--29.69 24.43
Exercised.......................... (413,258) 13.34--24.68 18.08
Canceled........................... (137,198) 24.34--24.68 24.57
--------- -------------- ------
Outstanding at December 31, 1997..... 2,446,463 13.34--29.69 21.36
Granted............................ 835,700 18.33--29.38 27.12
Exercised.......................... (84,528) 13.34--24.68 19.12
Canceled........................... (84,486) 16.04--29.38 25.75
--------- -------------- ------
Outstanding at December 31, 1998..... 3,113,149 $13.34--$29.69 $22.85
========= ============== ======
</TABLE>

Of the outstanding options at December 31, 1998, options covering 1,667,408
shares are currently exercisable at a weighted average exercise price of
$20.19.

At December 31, 1998, common shares reserved for issuance under these plans
were 4,050,654 and under additional remuneration agreements were estimated to
be 130,000.

44
In 1996, the Company adopted SFAS No. 123, "Accounting for Stock-Based
Compensation". As allowed by SFAS No. 123, the Company has not recognized
compensation cost for stock-based compensation arrangements. Pro forma net
income and earnings per share were calculated based on the following
assumptions as if the Company had recorded compensation expense for the stock
options granted during the year. The fair value of each option granted during
1998, 1997 and 1996 was estimated on the date of grant, using the Black-
Scholes option-pricing model with the following weighted-average assumptions
used: dividend yield of 3.2% in 1998, 2.8% in 1997 and 4.0% in 1996, risk-free
interest rate of 5.5% in 1998 and 1997 and 6.5% in 1996, expected volatility
of 27% in 1998, 21% in 1997 and 22% in 1996 and an expected life of 7 years.
The fair value of options granted during 1998, 1997 and 1996 was $11.77, $9.53
and $7.54, respectively. The following table shows the difference between
reported and pro forma net income and earnings per share as if the Company had
recorded compensation expense for the stock options granted during the year.

<TABLE>
<CAPTION>
($ in millions except per share data) 1998 1997 1996
- ------------------------------------- ---- ---- ----
<S> <C> <C> <C>
Net Income
As reported.................................................. $ 78 $153 $280
Pro forma.................................................... 72 149 277
Per Share Data:
Basic
As reported.................................................. 1.64 3.02 5.34
Pro forma.................................................... 1.52 2.96 5.29
Diluted
As reported.................................................. 1.63 3.00 5.27
Pro forma.................................................... 1.52 2.95 5.23
</TABLE>

Common Stock

In connection with the spin-off of Primex in 1996, its employees were
allowed to transfer their account balances from the Company's CEOP into
Primex's savings and retirement plan. The Company issued .3 million shares of
common stock at a value of $40.50 in exchange for .2 million shares of ESOP
preferred stock at a per share value of $85.63 at the time of the transfer.

In December 1996, the Company's board of directors approved the redemption
of all outstanding shares of ESOP preferred stock with common stock of
equivalent value. Approximately 1.87 million shares of common stock at a per
share value of $40.19 were issued in exchange for approximately .9 million
shares of ESOP preferred stock at a per share value of $85.75.

Shareholder Rights Plan

Effective February 1996, the Board of Directors adopted a new Shareholder
Rights Plan to replace the prior plan which had been adopted in 1986. Like the
former plan, the new plan is designed to prevent an acquiror from gaining
control of the Company without offering a fair price to all shareholders. Each
right entitles a shareholder (other than the acquiror) to buy one-five
hundredth share of Series A Participating Cumulative Preferred Stock at an
exercise price of one hundred twenty dollars. The rights are exercisable only
if a person acquires more than 15% of the Company's common stock or if the
Board of Directors so determines following the commencement of a tender or
exchange offer to acquire more than 15% of the Company's common stock. If any
person acquires more than 15% of the Company's common stock and in the event
of a subsequent merger or combination, each right will entitle the holder
(other than the acquiror) to purchase stock or other property of the acquiror
having a value of twice the exercise price. The Company can redeem the rights
at $.005 per right for a certain period of time. The rights will expire on
February 27, 2006, unless earlier redeemed by the Company.

45
Segment Information

Segment operating income is defined as earnings before interest, other
income and income taxes and includes earnings of non-consolidated affiliates
which is included in other income in the Consolidated Statements of Income.
Segment operating results in 1998 exclude the charge for the sale of the
microelectronic packaging unit at Manteca, CA and the restructuring of the
rod, wire and tube businesses at Indianapolis, IN ($42 pretax); and non-
recurring costs associated with the spin-off of Arch Chemicals ($21 pretax).
Segment operating income in 1996 excludes the gain on the sale of the
isocyanates business ($188 pretax) and non-recurring costs associated with the
spin-off of Primex ($9 pretax). In 1996, the "other" segment includes the
operating results of the isocyanates business which was sold in December 1996.

<TABLE>
<CAPTION>
1998 1997 1996
------ ------ ------
<S> <C> <C> <C>
Sales:
Chlor Alkali Products............................. $ 366 $ 411 $ 397
Metals............................................ 799 836 809
Winchester........................................ 261 252 256
Other............................................. -- -- 296
------ ------ ------
Total sales............................................ $1,426 $1,499 $1,758
====== ====== ======
Operating Income (Loss) Before Loss/Gain on Sales and
Restructuring of Businesses and Spin-off Costs:
Chlor Alkali Products............................. $ 55 $ 99 $ 86
Metals............................................ 64 62 60
Winchester........................................ 13 (4) (2)
Other............................................. -- -- 46
------ ------ ------
Total Operating Income................................. $ 132 $ 157 $ 190
====== ====== ======
Equity Income in Affiliated Companies, Included in
Operating Income:
Chlor Alkali Products............................. $ (1) $ (2) $ --
Metals............................................ 1 3 2
------ ------ ------
Total Equity Income in Affiliated Companies............ $ -- $ 1 $ 2
====== ====== ======
Depreciation Expense:
Chlor Alkali Products................................. $ 32 $ 32 $ 19
Metals................................................ 31 30 29
Winchester............................................ 10 10 10
Other................................................. 3 4 26
------ ------ ------
Depreciation Expense................................... $ 76 $ 76 $ 84
====== ====== ======
Amortization Expense:
Metals................................................ $ 2 $ 2 $ 2
====== ====== ======
Capital Spending:
Chlor Alkali Products................................. $ 31 $ 22 $ 15
Metals................................................ 25 28 38
Winchester............................................ 12 9 7
Other................................................. 10 17 14
------ ------ ------
Total Capital Spending................................. $ 78 $ 76 $ 74
====== ====== ======
Investments in and Advances to Affiliated Companies at
Equity:
Chlor Alkali Products............................. $ 3 $ 84 $ 103
====== ====== ======
Assets:
Chlor Alkali Products................................. $ 297 $ 290 $ 287
Metals................................................ 440 487 455
Winchester............................................ 161 155 152
Other................................................. 174 319 938
Net Assets of Discontinued Operations................. 505 456 430
------ ------ ------
Total Consolidated Assets.............................. $1,577 $1,707 $2,262
====== ====== ======
Investments & Advances--Affiliated Companies at Equity:
Chlor Alkali Products................................. $ 7 $ 7 $ 122
Metals................................................ 5 3 5
Other................................................. -- -- 25
------ ------ ------
Total Investments & Advances--Affiliated Companies..... $ 12 $ 10 $ 152
====== ====== ======
</TABLE>


46
Segment operating income includes an allocation of corporate charges based on
various allocation methodologies. Segment assets include only those assets
which are directly identifiable to a segment and do not include such items as
cash, deferred taxes and other assets. Sales by segment substantially represent
sales for the three product lines of the Company.

<TABLE>
<CAPTION>
Geographic Data: 1998 1997 1996
- ---------------- ------ ------ ------
<S> <C> <C> <C>
Sales
United States......................................... $1,388 $1,456 $1,593
Foreign............................................... 38 43 165
Transfers between areas
United States......................................... 10 9 101
Foreign............................................... -- -- 10
Eliminations.......................................... (10) (9) (111)
------ ------ ------
Total Sales............................................. $1,426 $1,499 $1,758
====== ====== ======
Assets
United States......................................... $1,084 $1,263 $1,808
Foreign............................................... 42 32 36
Investments........................................... 4 10 31
Eliminations.......................................... (58) (54) (43)
Net Assets of Discontinued Operations................. 505 456 430
------ ------ ------
Total Assets............................................ $1,577 $1,707 $2,262
====== ====== ======
</TABLE>

Transfers between geographic areas are priced generally at prevailing market
prices. Export sales from the United States to unaffiliated customers were $82,
$86, and $109 in 1998, 1997, and 1996, respectively.

47
Acquisitions

In February 1997, the Company completed its purchase of the remaining 50% of
Niachlor with a final payment of $2 to E.I. du Pont de Nemours and Company
(DuPont). In December 1996, the Company made an advance payment of $75 to
DuPont, which was included in Investments and Advances-Affiliated Companies at
Equity in the December 31, 1996 Balance Sheet. This acquisition was accounted
for as a purchase and accordingly, the results of operations, which were not
material, are included in the consolidated financial statements from the date
of acquisition.

Supplemental cash flow information on businesses acquired is as follows:

<TABLE>
<CAPTION>
1997
-----
<S> <C>
Working capital.................................................... $ (5)
Property, plant and equipment...................................... 112
Other liabilities.................................................. (5)
Investments and advances--affiliated companies..................... (25)
-----
Purchase price..................................................... $ 77
=====
</TABLE>

Dispositions and Restructurings

During 1998 the Company recorded a pretax loss of $63 related to the sale of
Olin Interconnect Technologies ($8), the restructuring of the rod, wire, and
tube business at Indianapolis, IN ($34) and non-recurring costs associated
with the spin-off of Arch Chemicals ($21).

In October 1997, the Company and Asahi Glass Company established separate
ownership of two joint ventures the companies had previously formed in polyols
and microelectronic packaging systems. The Company became the sole owner of
Aegis, Inc., a manufacturer of metal hermetic packages that was established in
1986. Conversely, Asahi Glass Company became the sole owner of the former
Asahi-Olin joint venture in polyols that was established in 1974.

In December of 1996 the Company sold its isocyanates business for $565 in
cash. The sale included all assets at the Company's Lake Charles, LA facility
used in the manufacture and sale of toluene diisocyanate, aliphatic
isocyanates and nitric acid. In connection with the transaction, the Company
recorded a pre-tax gain of $188 ($115 after tax gain) which is included in
Gain (Loss) on Sales and Restructurings of Businesses and Spin-Off Costs. The
Company's results of operations for 1996 included sales of $296 and net income
of $33, from the isocyanates business.

Supplemental cash flow information on businesses disposed is as follows:

<TABLE>
<CAPTION>
1998 1997 1996
----- ----- -----
<S> <C> <C> <C>
Proceeds............................................. $ 4 $ 5 $ 571
Working capital...................................... (4) -- (123)
Property, plant and equipment........................ (8) -- (177)
Investments and advances............................. -- (11) --
Other assets......................................... -- 3 (5)
Other liabilities.................................... -- 3 (78)
----- ----- -----
Gain (Loss) on disposition of businesses............. $ (8) $ -- $ 188
===== ===== =====
</TABLE>


48
The following table summarizes the major components of the 1998 charges and
the remaining balances as of December 31, 1998 excluding the non-cash asset
writedown described below:

<TABLE>
<CAPTION>
Accrued
Amounts Restructuring
Charge Utilized Costs
------ -------- -------------
<S> <C> <C> <C>
Employee termination and severance.......... $ 14 $ -- $ 14
Legal and investment banker fees............ 8 (1) 7
Exit costs.................................. 5 -- 5
Other....................................... 5 (1) 4
---- ----- ----
$ 32 $ (2) $ 30
==== ===== ====
</TABLE>

In September of 1998 the Company announced that it had offered its rod,
wire, and tube business at Indianapolis for sale. These businesses were not
profitable due to strong domestic and international competition and were not
expected to improve significantly. Since the Company was unable to sell the
rod, wire, and tube businesses the Company decided to shut down the
operations, which occurred on December 31, 1998. The Company will continue to
produce sheet and strip copper based alloys at the Indianapolis facility. The
assets of the rod, wire, and tube businesses include machinery and equipment
with a carrying value of $30. A valuation allowance has been recorded to
reflect the estimated net realizable value of the assets net of the amount
expected to be recovered in the sale of those assets of $7 over the next
twelve months. In 1998, the rod, wire, and tube businesses generated sales of
$26 and operating losses of $8.

Employee termination and severance costs relate to the termination of
approximately 450 of the 900 employees at the Indianapolis facility as well as
approximately 140 employees at the Company's corporate headquarters in
Norwalk, CT and various international subsidiaries. The Indianapolis
terminations were primarily manufacturing positions while the corporate and
international terminations included various corporate functions such as
finance, legal, human resources and information technology. The majority of
the termination and severance benefits will be paid over the next twelve
months.

Legal and investment banker fees relate to the spin-off of Arch Chemicals
and are expected to be paid in the next six months.

In connection with the spin-off of Primex in 1996, the Company recorded $9
in spin-off costs which related primarily to pension curtailment, investment
banker and legal fees.

Discontinued Operations

On February 8, 1999, the Company completed the spin-off of its specialty
chemicals businesses as Arch Chemicals, Inc. Under the terms of the spin-off,
the Company distributed to its holders of common stock as of the close of
business on February 1, 1999 one Arch Chemicals common share for every two
shares of Olin common stock. In February 1999 prior to the distribution, Olin
borrowed $75 under a credit facility, which liability was assumed by Arch
Chemicals.

On December 31, 1996 the Company completed the spin-off of its Ordnance and
Aerospace businesses as Primex. Under the terms of the spin-off, the Company
distributed to its holders of common stock as of the close of business on
December 19, 1996, one Primex common share for every ten shares of Olin common
stock. The spin-off distribution reduced shareholders' equity by $145 which
represents the book value of the net assets of Primex as of December 31, 1996.

The historical operating results of these businesses are shown net of tax as
discontinued operations in the consolidated statements of income. The
discontinued operations include an allocation

49
of corporate overhead with the allocation based on either effort committed or
number of employees. Management believes that the allocation methods used to
allocate the costs and expenses are reasonable, however, such allocated
amounts may or may not necessarily be indicative of what those expenses would
have been had Arch Chemicals or Primex operated independently of Olin. Net
assets of discontinued operations in the consolidated balance sheet include
those assets and liabilities attributable to the Arch Chemicals business.

The historical results for the Primex discontinued operations include an
allocation of the Company's interest expense based on an assumed debt level
providing a debt to capital ratio similar to that of the Company as well as a
level of debt that Primex could maintain on an independent basis in the
future. The allocated debt of $125 represents the amount borrowed by the
Company under a credit facility established by the Company and assumed by
Primex prior to the distribution on December 31, 1996. The cash received by
the Company under this credit facility was used to liquidate its existing
debt.

The Company has entered into tax sharing agreements with both Arch Chemicals
and Primex effectively providing that the Company will be responsible for the
tax liability of Arch Chemicals and Primex for the years that Arch Chemicals
and Primex were included in the Company's consolidated income tax returns.
Income taxes have been allocated to Arch Chemicals and Primex based on their
pretax income and calculated on a separate company basis pursuant to the
requirements of Statement of Financial Accounting Standards No. 109,
"Accounting for Income Taxes". Income taxes allocated to the discontinued
operations were $21, $30 and $35 in 1998, 1997 and 1996, respectively.

In addition, the Company entered into several other agreements with Arch
Chemicals and Primex which cover such matters as technology transfers,
transition services, covenants not to compete, chlorine and caustic supply and
powder and component supplies.

Condensed historical combined balance sheet and income statement data of the
discontinued operations are summarized below:

<TABLE>
<CAPTION>
1998 1997
----- -----
<S> <C> <C>
Combined Balance Sheets
Total assets.......................................... $ 722 $ 693
Total liabilities..................................... 217 237
Equity................................................ 505 456
<CAPTION>
1998 1997 1996
----- ----- ------
<S> <C> <C> <C>
Combined Statements of Income
Sales................................................. $ 863 $ 930 $1,385
Net income............................................ 40 56 53
</TABLE>

Environmental

The Company is party to various governmental and private environmental
actions associated with waste disposal sites and manufacturing facilities.
Environmental provisions charged to income amounted to $16 in 1998, $17 in
1997 and $70 in 1996. In 1996, in connection with the sale of the isocyanates
business a $53 provision was recorded to provide for contractual liabilities
related to future environmental spending at the Lake Charles, LA site. Charges
to income for investigatory and remedial efforts were material to operating
results in 1998, 1997 and 1996. The consolidated balance sheets include
reserves for future environmental expenditures to investigate and remediate
known sites amounting to $129 at December 31, 1998 and $133 at December 31,
1997, of which $99 and $103 are classified as other noncurrent liabilities,
respectively.

50
Environmental exposures are difficult to assess for numerous reasons,
including the identification of new sites, developments at sites resulting
from investigatory studies, advances in technology, changes in environmental
laws and regulations and their application, the scarcity of reliable data
pertaining to identified sites, the difficulty in assessing the involvement
and financial capability of other potentially responsible parties and the
Company's ability to obtain contributions from other parties and the length of
time over which site remediation occurs. It is possible that some of these
matters (the outcomes of which are subject to various uncertainties) may be
resolved unfavorably against the Company. At December 31, 1998, the Company
had estimated additional contingent environmental liabilities of $40.

Commitments and Contingencies

The Company leases certain properties, such as railroad cars, manufacturing,
warehousing and office space, data processing and office equipment. Leases
covering these properties generally contain escalation clauses based on
increased costs of the lessor, primarily property taxes, maintenance and
insurance and have renewal or purchase options. Total rent expense charged to
operations amounted to $38 in 1998, $33 in 1997 and $37 in 1996, (sublease
income is not significant). Future minimum rent payments under operating
leases having initial or remaining noncancelable lease terms in excess of one
year at December 31, 1998 are as follows: $17 in 1999; $15 in 2000; $12 in
2001; $10 in 2002; $8 in 2003; and $23 thereafter.

There are a variety of non-environmental legal proceedings pending or
threatened against the Company. Those matters that are probable have been
accrued for in the accompanying financial statements. Any contingent amounts
in excess of amounts accrued are not expected to have a material adverse
effect on results of operations, financial position or liquidity of the
Company.

51
Other Financial Data

Quarterly Data (Unaudited)

<TABLE>
<CAPTION>
First Second Third Fourth
1998 Quarter Quarter Quarter(/1/) Quarter(/2/) Year(/1/)(/2/)
- ---- ------- ------- ------------ ------------ --------------
<S> <C> <C> <C> <C> <C>
Sales................... $ 359 $ 348 $ 383 $ 336 $ 1,426
Cost of goods sold...... 287 285 320 269 1,161
Income (loss) from
continuing operations.. 23 17 (11) 9 38
Net income (loss)....... 39 38 (7) 8 78
Per common share:
Basic
Income (loss) from
continuing
operations........... .47 .37 (.24) .19 .79
Net income (loss)..... .81 .81 (.15) .16 1.64
Diluted
Income (loss) from
continuing
operations........... .46 .37 (.24) .19 .79
Net income (loss)..... .80 .80 (.15) .16 1.63
Common dividends per
share.................. .30 .30 .30 .30 1.20
Market price of common
stock(/3/)
High.................. 49 5/16 48 3/4 41 5/8 30 7/8 49 5/16
Low................... 42 5/16 39 7/8 23 7/8 24 13/16 23 7/8
<CAPTION>
1997
- ----
<S> <C> <C> <C> <C> <C>
Sales................... $ 366 $ 368 $ 384 $ 381 $ 1,499
Cost of goods sold...... 294 301 301 307 1,203
Income from continuing
operations............. 25 18 28 26 97
Net income.............. 42 39 38 34 153
Per common share:
Basic
Income from continuing
operations........... .48 .36 .55 .53 1.91
Net income............ .81 .75 .76 .70 3.02
Diluted
Income from continuing
operations........... .47 .36 .54 .53 1.90
Net income............ .80 .75 .75 .70 3.00
Common dividends per
share ................. .30 .30 .30 .30 1.20
Market price of common
stock (/3/)
High.................. 43 1/4 43 48 7/8 51 3/8 51 3/8
Low................... 35 3/8 36 38 1/4 40 3/4 35 3/8
</TABLE>
- --------
(1) Operating results include a charge for the sale of the microelectronic
packaging unit at Manteca, CA and the restructuring of the rod, wire and
tube businesses at Indianapolis, IN ($42 pretax, $26 after tax and $.55
diluted earnings per share).
(2) Operating results include non-recurring costs associated with the spin-off
of Arch Chemicals, Inc. primarily severance, investment banking and legal
fees ($21 pretax, $15 after tax and $.32 diluted earnings per share).
(3) New York Stock Exchange composite transactions.

52
Economic Value Added Performance Measure (Unaudited)

<TABLE>
<CAPTION>
1998 1997 1996
------ ------ ------
<S> <C> <C> <C>
Earnings before interest and taxes(/1/)
--continuing operations............................ $ 136 $ 161 $ 198
--discontinued operations.......................... 61 86 95
------ ------ ------
197 247 293
Adjustments(/2/).................................... 22 22 47
------ ------ ------
Operating profit before taxes....................... 219 269 340
Cash taxes at 35%................................... (77) (94) (119)
------ ------ ------
Net operating profit after taxes.................... 142 175 221
Strategic investment(/3/)........................... 3 -- --
Capital charge...................................... (121) (108) (158)
------ ------ ------
EVA................................................. $ 24 $ 67 $ 63
====== ====== ======
Average capital employed............................ $1,288 $1,162 $1,673
====== ====== ======
Return on capital................................... 11.3% 15.1% 13.2%
====== ====== ======
Cost of capital..................................... 9.4% 9.4% 9.4%
====== ====== ======
</TABLE>
- --------
(1) EBIT excludes (i) $63 charge in 1998 related to the sale of the
microelectronic packaging unit at Manteca, CA and the restructuring of the
rod, wire and tube businesses at Indianapolis, IN ($42) and non-recurring
costs associated with the spin-off of Arch Chemicals ($21) and; (ii) the
gain on sale of TDI and ADI businesses of $188 in 1996.
(2)Adjustments include principally environmental provisions and other
miscellaneous income
(3)Strategic investment relates to adjustment for investment with negative
short term EVA impact

53
Item 9. Changes in and Disagreements with Accountants on Accounting and
Financial Disclosure

Not applicable.

PART III

Item 10. Directors and Executive Officers of the Registrant

The biographical information relating to Olin's Directors under the heading
"Item 1--Election of Directors" in the Proxy Statement relating to Olin's 1999
Annual Meeting of Shareholders (the "Proxy Statement") is incorporated by
reference in this Report. See also the list of executive officers following
Item 4 of this Report. The information regarding compliance with Section 16 of
the Securities Exchange Act of 1934, as amended, contained in the paragraph
entitled "Section 16(a) Beneficial Ownership Reporting Compliance" under the
heading "Security Ownership of Directors and Officers" in the Proxy Statement
is incorporated by reference in this Report.

Item 11. Executive Compensation

The information under the heading "Executive Compensation" in the Proxy
Statement (but excluding the Report of the Compensation Committee on Executive
Compensation appearing on pages 10 through 11 of the Proxy Statement and the
graph appearing on pages 14 and 15 of the Proxy Statement) is incorporated by
reference in this Report. The information under the heading "Additional
Information Regarding the Board of Directors--Compensation of Directors" in
the Proxy Statement is incorporated by reference in this Report.

Item 12. Security Ownership of Certain Beneficial Owners and Management

The information concerning holdings of Olin stock by certain beneficial
owners contained under the heading "Certain Beneficial Owners" in the Proxy
Statement and the information concerning beneficial ownership of Olin stock by
directors and officers of Olin under the heading "Security Ownership of
Directors and Officers" in the Proxy Statement are incorporated by reference
in this Report.

Item 13. Certain Relationships and Related Transactions

Not applicable.

PART IV

Item 14. Exhibits, Consolidated Financial Statement Schedules, and Reports on
Form 8-K

(a) 1. Consolidated Financial Statements

Included in Item 8 above.

2. Consolidated Financial Statement Schedules

Schedules not included herein are omitted because they are inapplicable or
not required or because the required information is given in the consolidated
financial statements and notes thereto.

54
Separate consolidated financial statements of 50% or less owned subsidiaries
accounted for by the equity method are not summarized herein and have been
omitted because, in the aggregate, they would not constitute a significant
subsidiary.

3. Exhibits

Management contracts and compensatory plans and arrangements are listed as
Exhibits 10(a) through 10(s) below.

3(a) Olin's Restated Articles of Incorporation as amended effective
May 8, 1997--Exhibit 3 to Olin's Form 10-Q for the Quarter ended
March 31, 1997.*
(b) By-laws of Olin as amended effective February 8, 1999.
4(a) Articles of Amendment designating Series A Participating
Cumulative Preferred Stock, par value $1 per share--Exhibit 2 to
Olin's Form 8-A dated February 21, 1996, covering Series A
Participating Cumulative Preferred Stock Purchase Rights.*
(b) Rights Agreement dated as of February 27, 1996 between Olin and
Chemical Mellon Shareholder Services, LLP, Rights Agent--Exhibit
1 to Olin's Form 8-A dated February 21, 1996, covering Series A
Participating Cumulative Preferred Stock Purchase Rights.*
(c) Form of Senior Debt Indenture between Olin and Chemical Bank--
Exhibit 4(a) to Form 8-K dated June 15, 1992; Supplemental
Indenture dated as of March 18, 1994 between Olin and Chemical
Bank--Exhibit 4(c) to Registration Statement No. 33-52771;
Prospectus Supplement dated June 17, 1992 to Prospectus dated
June 16, 1992, with respect to Olin's 8% Senior Notes Due 2002
filed under Registration Statement No. 33-4479; and Prospectus
Supplement dated May 26, 1995 to Prospectus dated May 4, 1994
relating to Medium Term Notes, Series A filed under Registration
Statement No. 33-52771.*
(d) Form of Subordinated Debt Indenture between Olin and Bankers
Trust Company--Exhibit 4(i) to Registration No. 33-4479.*
(e) Amended and Restated Credit Agreement, dated as of September 30,
1993 and amended and restated as of February 22, 1999, among Olin
and the banks named therein.

Olin is party to a number of other instruments defining the rights of
holders of long-term debt. No such instrument authorizes an amount of
securities in excess of 10% of the total assets of Olin and its subsidiaries
on a consolidated basis. Olin agrees to furnish a copy of each instrument to
the Commission upon request.

10(a) 1980 Stock Option Plan for Key Employees of Olin Corporation and
Subsidiaries, as amended--Exhibit 10(a) to Olin's Form 10-K for
1991.*
(b) 1988 Stock Option Plan for Key Employees of Olin Corporation and
Subsidiaries as amended through February 23, 1995--Exhibit 10(b)
to Olin's Form 10-K for 1994.*
(c) Amended and Restated Employee Deferral Plan, effective November
1, 1997, as amended and restated effective as of February 8,
1999.
(d) Olin Senior Executive Pension Plan with amendments.
(e) Olin Supplemental Contributing Employee Ownership Plan, effective
January 1, 1990 as amended and restated as of September 24, 1998.
(f) Olin Corporation Key Executive Life Insurance Program--Exhibit
10(b) to Olin's Form 10-Q for Quarter ended March 31, 1986.*
(g) Form of Olin Corporation Endorsement Split Dollar Agreement
(effective January 1, 1993)--Exhibit 10(s) to Olin's Form 10-K
for 1992.*
(h) Form of executive agreement between Olin and certain executive
officers as amended December 10, 1998.

55
(i) Form of special severance agreement provided to certain employees
to become operative upon a "change in control event"-Exhibit
10(n) to Olin's Form 10-K for 1997.*
(j) Olin 1991 Long Term Incentive Plan, as amended through February
23, 1995--Exhibit 10(u) to Olin's Form 10-K for 1994.*
(k) Description of 1991 Performance Unit Awards granted under the
Olin 1991 Long Term Incentive Plan--Exhibit 10(w) to Olin's Form
10-K for 1991.*
(l) Description of 1992 Performance Unit Awards granted under the
Olin 1991 Long Term Incentive Plan--Exhibit 10(z) to Olin's Form
10-K for 1992.*
(m) Description of Performance Share Awards granted under the Olin
1991 Long Term Incentive Plan--Exhibit 10 to Olin's Form 10-Q for
the quarter ended June 30, 1993.*
(n) Amended and Restated 1997 Stock Plan for Non-Employee Directors
as amended and restated effective as of February 8, 1999.
(o) Olin Senior Management Incentive Compensation Plan as amended
April 27, 1995--Exhibit 10(b) to Olin's Form 10-Q for Quarter
ended March 31, 1995.*
(p) Description of Restricted Stock Unit Awards granted under the
Olin 1991 Long Term Incentive Plan--Exhibit 10(bb) to Olin's Form
10-K for 1995.*
(q) Form of EVA Incentive Plan (Management Incentive Compensation
Plan)--Exhibit 10(dd) to Olin's Form 10-K for 1996.*
(r) 1996 Stock Option Plan for Key Employees of Olin Corporation and
Subsidiaries--Exhibit A to Olin's 1996 Proxy Statement dated
March 12, 1996.*
(s) Olin Supplementary and Deferral Benefit Pension Plan.
(t) Assumption of Liabilities and Indemnity Agreement, dated December
31, 1996, between Olin Corporation and Primex Technologies,
Inc.--Exhibit 10(ii) to Olin's Form 10-K for 1996.*
(u) Distribution Agreement between Olin Corporation and Arch
Chemicals, Inc., dated as of February 1, 1999 --Exhibit 2.1 to
Olin's Form 8-K filed February 23, 1999.*
(v) Form of Employee Benefits Allocation Agreement between Olin
Corporation and Arch Chemicals, Inc.
(w) 364-Day Credit Agreement dated as of January 27, 1999, among Arch
Chemicals, Inc., Olin Corporation, the Lenders party thereto,
Bank of America, National Trust and Savings Association, as
Syndication Agent, Wachovia Bank, N.A., as Documentation Agent,
The Chase Manhattan Bank, as Administrative Agent and Chase
Securities, Inc., as Arranger.--Exhibit 10.1 to Olin's Form 8-K
filed February 23, 1999.*
(x) Five-year Credit Agreement dated as of January 27, 1999, among
Arch Chemicals, Inc., Olin Corporation, the Lenders party
thereto, Bank of America, National Trust and Savings Association,
as Syndication Agent, Wachovia Bank, N.A., as Documentation
Agent, The Chase Manhattan Bank, as Administrative Agent and
Chase Securities, Inc., as Arranger.--Exhibit 10.2 to Olin's Form
8-K filed February 23, 1999.*
11. Computation of Per Share Earnings (included in the Note--"Earnings
Per Share" to Notes to Consolidated Financial Statements in Item 8.
12. Computation of Ratio of Earnings to Fixed Charges (unaudited).
21. List of Subsidiaries.
23. Consent of KPMG LLP dated March 16, 1999.
27(a) Financial Data Schedule.
27(b) Restated Financial Data Schedule.
27(c) Restated Financial Data Schedule.
- --------
* Previously filed as indicated and incorporated herein by reference. Exhibits
incorporated by reference are located in SEC File No. 1-1070 unless
otherwise indicated.

(b) Reports on Form 8-K

No reports on Form 8-K were filed during the quarter ended December 31,
1998.

56
SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed
on its behalf by the undersigned, thereunto duly authorized.

Olin Corporation
Date: March 16, 1999
/s/ Donald W. Griffin
By
-----------------------------------
Donald W. Griffin
Chairman of the Board, President
and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this
report has been signed below by the following persons on behalf of the
registrant and in the capacities and on the date indicated.

Signature Title Date

/s/ Donald W. Griffin Chairman of the March 16, 1999
- ------------------------------------- Board, President
Donald W. Griffin and Chief Executive
Officer and
Director (Principal
Executive Officer)

/s/ William W. Higgins Director March 16, 1999
- -------------------------------------
William W. Higgins

/s/ Robert Holland, Jr. Director March 16, 1999
- -------------------------------------
Robert Holland, Jr.

/s/ Suzanne Denbo Jaffe Director March 16, 1999
- -------------------------------------
Suzanne Denbo Jaffe

/s/ Randall W. Larrimore Director March 16, 1999
- -------------------------------------
Randall W. Larrimore

/s/ G. Jackson Ratcliffe, Jr. Director March 16, 1999
- -------------------------------------
G. Jackson Ratcliffe, Jr.

/s/ Richard M. Rompala Director March 16, 1999
- -------------------------------------
Richard M. Rompala

/s/ Anthony W. Ruggiero Executive Vice
- ------------------------------------- President and Chief
Anthony W. Ruggiero Financial Officer
(Principal
Financial Officer
and Principal
Accounting Officer)

57
EXHIBIT INDEX

<TABLE>
<C> <S>
3(b) By-laws of Olin as amended effective February 8, 1999.
4(e) Amended and Restated Credit Agreement, dated as of September 30, 1993
and amended and restated as of February 22, 1999, among Olin and the
banks named therein.
10(c) Amended and Restated Employee Deferral Plan, effective November 1, 1997,
as amended and restated effective as of February 8, 1999.
10(d) Olin Senior Executive Pension Plan with amendments.
10(e) Olin Supplemental Contributing Employee Ownership Plan, effective
January 1, 1990 as amended and restated as of September 24, 1998.
10(h) Form of executive agreement between Olin and certain executive officers
as amended December 10, 1998.
10(n) Amended and Restated 1997 Stock Plan for Non-Employee Directors as
amended and restated effective as of February 8, 1999.
10(s) Olin Supplementary and Deferral Benefit Pension Plan.
10(v) Form of Employee Benefits Allocation Agreement between Olin Corporation
and Arch Chemicals, Inc.
12. Computation of Ratio of Earnings to Fixed Charges (unaudited).
21. List of Subsidiaries.
23. Consent of KPMG LLP dated March 16, 1999.
27(a) Financial Data Schedule.
27(b) Restated Financial Data Schedule.
27(c) Restated Financial Data Schedule.
</TABLE>


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