company owned by westlake chemical - SERP Analysis

https://www.sec.gov/Archives/edgar/data/1262823/000119312505052548/dex21.htm

https://en.wikipedia.org/wiki/Westlake_Corporation

https://www.westlake.com/

https://www.wlkpartners.com/

https://www.houstonchronicle.com/business/article/chao-westlake-chemicals-houston-billionaire-20175730.php

https://portersfiveforce.com/blogs/owners/westlake

https://lottechemusa.com/our-companies/lacc-llc/

https://www.annualreports.com/Company/westlake-chemical-partners-lp

https://www.justice.gov/archives/opa/pr/westlake-chemical-corporation-subsidiaries-agree-reduce-harmful-air-pollution-three-us