As of December 2025 Mesaieed Petrochemical Holding Company has a market cap of โน344.62 Billion. This makes Mesaieed Petrochemical Holding Company the world's 3540th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.