Our long-term strategy to maintain stakeholder value is dependent on our ability to ensure that we operate our business in a safe, ethical, environmentally and socially responsible manner.


Vinnolit Awarded Gold for Practiced Corporate Social Responsibility

Our commitment to sustainable principles was most recently recognized through an independent assessment of our European subsidiary, Vinnolit. For the third time, the independent platform EcoVadis ( evaluated Vinnolit’s Corporate Social Responsibility (CSR) performance and again Vinnolit achieved an excellent rating (“Gold Recognition Level”).

During the assessment, Vinnolit’s activities in the areas of environmental protection, labor practices and human rights, fair business practices, and sustainable procurement were examined. The rating, encompassing 21 criteria, is based on international CSR standards such as the United Nations Global Compact, the Global Reporting Initiative, and ISO 26000. Scoring 64 out of 100 possible points in the assessment, Vinnolit ranks significantly above the industrial average of 42.5 points and is in the top 4 percent of all companies worldwide (over 40,000) that have been reviewed by EcoVadis.

To read more about this recent accomplishment, CLICK HERE.


Westlake’s commitment to quality products is so strong that it is symbolized through the two check marks that make up the “W” in our logo.

Several of Westlake's operations have earned the prestigious ISO 9001:2008 certification or the new ISO 9001:2015 certification. ISO certification signifies that a company has an ongoing program of continual quality improvement. Either ISO 9001:2008 or ISO 9001:2015 certification indicates that Westlake's production facilities meet rigid standards and supplier requirements and are committed to continual improvement.

To view a complete list of Westlake operations with ISO 9001:2008 or ISO 9001:2015 certification, click HERE.

Protecting the Environment

Acting responsibly

Westlake is committed to the guiding principle of responsible corporate action and sustainable development that combines financial success with social responsibility and responsibility for the environment.

A responsible and sustainable action is firmly anchored in the corporate culture of Westlake and operating in a safe, ethical, environmentally and socially responsible manner.

Lake Charles South Wetlands Planting

To read about the planting of 175 acres of wetlands in Bayou d'Inde, located in Lake Charles, Louisiana, click HERE.


Shipments of raw materials and finished products continuously flow in and out of company facilities, and Westlake is committed to ensuring this flow of materials meets safety and regulatory requirements.

In recognition of Westlake’s commitment to the safe transport of products, the company received recognition from BNSF Railway - Product Stewardship Award, CSX Chemical Safety Excellence Award for the past eleven years, and the Chlorine Institute – Diamond Leadership Award.