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October 22, 2021updated 26 Apr 2022 12:37pm

Westlake Chemical Corporation Plaquemine Complex, US

By Carmen

Westlake Chemical Corporation Plaquemine Complex is an active petrochemical complex located in Louisiana, the US. The complex started commercial operations in 1975 and currently has an active annual capacity of 3.61mtpa. Its capacity is expected to remain the same as 3.61mtpa in 2030. The plants in this complex are operated by Westlake.

Key Products Capacity – Westlake Chemical Corporation Plaquemine Complex, 2020

Key products produced in this complex include ethylene dichloride (EDC), polyvinyl chloride (PVC), vinyl chloride monomer (VCM), caustic soda, and chlorine.

Ethylene Dichloride (EDC) accounts for major capacity share i.e., 31.9% of the total annual capacity of the complex with 1.15mtpa, followed by polyvinyl chloride (PVC) and vinyl chloride monomer (VCM) with 23.8% (0.86mtpa) and 20.2% (0.73mtpa) respectively.

About Westlake

Westlake Corp (Westlake), formerly Westlake Chemical Corp, is a manufacturer and supplier of petrochemicals, polymers, and building products. Its products include olefins, vinyl chemicals, styrene, polyethylene, and polymers. The company manufactures petrochemicals through olefins business such as ethylene and styrene monomer. Westlake vinyl products are used in residential siding, pipe, and fittings for water, sewer, and industrial applications; PVC profiles for windows, doors, fences, and decking along with films. The company offers its products to nutrition and health care, consumer lifestyle, building, and construction. It operates across Asia, Europe, and North America. Westlake Chemical is headquartered in Houston, Texas, the US.


Information on the petrochemical complexes/plants is sourced from GlobalData’s oil & gas petrochemicals plants database that provides detailed information on all active and upcoming, petrochemical plants globally. Not all companies mentioned in the article may be currently existing due to their merger or acquisition or business closure.

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