Westlake Corporation WLK

Company Overview

Westlake Corporation is a U.S.-based global manufacturer and supplier of petrochemicals, polymers, and building products, operating primarily in the chemicals, plastics, and construction materials industries. The company produces essential materials used in packaging, automotive components, consumer goods, housing, and infrastructure, with a vertically integrated model spanning basic chemicals to finished building products. Its core revenue drivers are commodity and specialty chemicals as well as value-added building products tied closely to residential and infrastructure demand.

The company was founded in 1986 by Ting Tsung Chao as Westlake Chemical and expanded steadily through organic growth and acquisitions, culminating in a corporate reorganization and rebranding as Westlake Corporation in 2022. Over time, Westlake evolved from a primarily olefins and polyolefins producer into a diversified materials and building products company, leveraging scale, feedstock integration, and downstream manufacturing to enhance margins and reduce cyclicality.