Westlake Chemical is an international manufacturer and supplier of petrochemicals and building products that enhance the daily lives of people around the planet. The tires we ride on, the plastic wrap that keeps our meats and produce fresh, the pipes that are essential to ensuring clean water, the frames that secure our windows and doors, Westlake plays a vital role in supplying the building blocks for these products and many more.

Employing approximately 4,100 people, Westlake operates from 16 locations in North America, 1 location in China and 7 locations in Europe. Our unwavering goal is to provide quality products and service to our clients by being highly responsive, reliable, nimble and easy to work with. We are a dependable supplier of products in their most common forms. Yet, we are also known for collaborating closely with clients to develop specialized product properties that will help them meet their own end-product design goals.


Our core values are at the heart of how we conduct our business and serve to guide each of us as we work to bring excellence to our communities, operations and customers.

HSE - The health and safety of our employees and communities, and the vigilant care of our environment is of utmost importance.

COMPETITIVENESS - We strive for operating excellence and strong customer service while maintaining a long-term approach.

QUALITY - We are committed to a continuous improvement process.

HUMANITY - The integrity, creativity, dedication and drive of our employees allow us to excel. The safety and health of our employees and the environment are of utmost importance.

CITIZENSHIP - We are proud to be an active part of the communities in which we work and live.


Our mission is to provide quality products and services to commodity chemical, plastics and related fabricated products markets. We work to align and focus the interests of our global customers and suppliers with those of our shareholders, employees and communities. We strive to be a low cost manufacturer and to find value across the chain through vertical integration and synergies through horizontal integration. We adhere to the concept of economic value added (EVA°) and seek to return value to our shareholders above their invested cost of capital.