Westlake is committed to acting in a safe, ethical, environmentally, and socially responsible manner in everything we do. For us, this means being true to our company's longstanding values and focusing on what matters most.


"Our continued focus on Environmental, Sustainability and Governance (ESG) activities led us to make significant improvements in our operational and supply chain processes for the betterment of our communities, where our people live and work, and where our products serve vital and valued purposes."


-Albert Chao, CEO of Westlake


At Westlake, we aspire to continuously improve our ESG journey. We are proud of our accomplishments so far but are also committed to doing more each year to support and enhance the planet, our people, and our communities worldwide.


Policies  ESG Report & Appendix

To further our commitment to transparency, we published Westlake's fourth annual Environment, Social and Governance (ESG) report, which brings together existing and new disclosures. Working with our partner, we completed our first, robust materiality assessment for Westlake in 2021. The assessment addressed our internal and external stakeholders views and the actual and potential impacts of a broad list of ESG topics included in our ESG report. Westlake 2020 ESG Report and Westlake 2020 ESG Appendix.

We have mapped our ESG topics across metrics outlined in the Sustainable Accounting Standards Board (SASB) voluntary disclosure frameworks and aligned to the United Nations Sustainable Development Goals (SDG). The 11 material topics identified by SASB for the chemical industry are included in this report.

We aim to report more completely against SASB, the Task Force of Climate-related Financial Disclosures (TCFD), and the Global Reporting Initiative (GRI) frameworks starting in 2022.

A supplement ESG index is now available.  

rss  Westlake's Five Pillars of ESG and Material Topics

Our materiality assessment identified 14 ESG topics as particular areas of focus for our company and our stakeholders. We consider these top 14 material topics and our related efforts under our five ESG pillars.

  • Climate change + energy
  • Cyber security
  • Competitiveness and reliability
  • Ethics and compliance
  • Air quality
  • Environmental compliance
  • Waste and circular economy
  • Water and Effluent
  • Product safety + stewardship
  • Process safety and emergency response
  • Diversity + inclusion
  • Health and safety
  • Community engagement + impact management
  • Value generation and distribution

Industry Associations

Flexible Packaging Association
Alliance to End Plastic Waste
Vinyl Sustainability Council Member

News Releases

Westlake Epoxy Receives ISCC+ Certification at Its Pernis, Netherlands Site

Westlake Epoxy Achieves EcoVadis Platinum Sustainability Rating, Demonstrating Continued Sustainability Advancements

Westlake Establishes 2030 Target to Reduce Carbon Dioxide Emissions

Westlake's Vinnolit Introduces New Lower-Carbon GreenVin PVC

Westlake’s NAPCO Pipe & Fittings Introduces High-Performance Molecular-Oriented PVC C909 Pipe

Westlake and Nexii Announce Alliance to Support Sustainable Building

Westlake Reiterates Its Commitment to Company-Wide Continuous Improvement in Its 2020 ESG Report

Westlake and Nexii Announce Alliance to Support Sustainable Building

Westlake Doubles its Portfolio in High-Growth North American Building Products Market

Westlake Completes Acquisition of Dimex