Westlake Corporation is a global manufacturer and marketer of both housing and infrastructure products and performance and essential materials that are designed to enhance the lives of people every day. The Company operates through two segments, which include Housing and Infrastructure Products (HIP) and Performance and Essential Materials (PEM). The HIP segment is primarily comprised of residential and non-residential building products, polyvinyl chloride (PVC) pipe and fittings, and compound products made from PVC and other polymers. The PEM segment includes Westlake North American Chlorovinyls, Westlake European & Asian Chlorovinyls, Westlake Olefins and Polyethylene and Westlake Epoxy. The HIP business consists of product groups including exterior and interior building products, which include siding, trim and mouldings, stone, roofing, windows and outdoor living products; PVC pipe, specialty PVC pipe and fittings; and compounds primarily made from PVC.