Mesaieed Petrochemical Holding Company Q.P.S.C., through its subsidiaries, engages in the manufacture and sale of petrochemical products in Qatar, the Middle East, Asia, Africa, Indian sub-continent, and Europe. The company operates through two segments, Petrochemicals and Chlor-Alkali. It also produces ethylene, polyolefins, 1-hexene, C4+, polyethylene, normal alpha olefins, pyrolysis gasoline, C3 and C4, caustic soda, ethylene dichloride, vinyl chloride monomer, and hydrochloric acid. The company was incorporated in 2013 and is headquartered in Doha, Qatar. Mesaieed Petrochemical Holding Company Q.P.S.C. is a subsidiary of QatarEnergy.