Grade C-
ChemScore report card

Westlake Chemical

Westlake Chemical is an international manufacturer and supplier of petrochemicals, polymers and fabricated building products, serving various consumer and industrial markets. The company is the largest producer of low-density polyethylene (LDPE) in the US and ranks among the Forbes Global 2000. Westlake Chemical operates in two segments: olefins and vinyls. It is also an integrated producer of vinyls, with substantial downstream integration into polyvinyl chloride (PVC) building products.
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Total score
13 / 48

Grade Summary

Westlake Chemical produces 5 highly hazardous chemicals. This may not seem so bad, compared to many of the other companies in the ranking, but it is still a portfolio full of problematic substances. On a positive note, 83…

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Overall rank
23 / 50
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Total score
13 / 48
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Product Portfolio
- / 18
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Development of Safer Chemicals
- / 12
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Management & Transparency
- / 12
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