Founded in 1986 with the acquisition of a polyethylene plant in Lake Charles, Louisiana, Westlake Corporation is a global diversified industrial manufacturer and supplier. Its businesses produce chemicals, polymers, epoxy materials, and building and infrastructure products, serving customers across a range of industrial and consumer sectors.
ISO 14001
ISO 9001:2015
ISO 50001 Energy Management System
GreenCircle Certified
OSHA Voluntary Protection Programs (VPP) Star status goal
Compliance program
OSHAVPPSTAR
Quality certification
Westlake Pipe & FittingsWestlake Pipe & Fittings, a division of Westlake Corporation, manufactures PVC pipe and fittings for infrastructure and related applications. The company says it has supported infrastructure for more than 50 years and operates 23 manufacturing and distribution facilities across North America; it also pioneered Certa-Lok spline-lock technology.LEOLA, PA
WL PlasticsWL Plastics manufactures solid-wall high- and medium-density polyethylene pipe, and describes itself as North America’s largest manufacturer in this product category. Founded in the early 2000s, it grew from serving oil and gas gathering, municipal water, sewer, mining, and industrial pipe needs in the Rocky Mountain region; INEOS acquired the company in 2016. It operates ten U.S. manufacturing locations and reports annual production capacity exceeding one billion pounds.TITUSVILLE, PA
Westlake PlasticsFounded in 1951, Westlake Plastics converts more than 20 types of thermoplastic resin into semi-finished shapes for demanding applications. From Pennsylvania production facilities, the company serves customers worldwide and is particularly experienced in regulated fields such as aerospace, life sciences and semiconductor manufacturing. Its history includes early contributions to Hula Hoops, while its current work includes custom material development and specialized shapes for small prototype lots through high-volume production.LENNI, PA
Chevron Phillips ChemicalFounded in 2000 as a joint venture between Chevron U.S.A. Inc. and Phillips 66 Company, Chevron Phillips Chemical produces petrochemical materials and solutions used in consumer and industrial goods. It operates chemical manufacturing facilities and makes products including polyethylene and polyethylene pipe, serving markets around the world.HAGERSTOWN, MD