 HOUSTON--BUSINESS WIRE--Westlake Chemical Corporation NYSE: WLK will release its fourth quarter and full year earnings for 2021 prior to the market opening on Tuesday, February 22, 2022. The company will host a conference call at 11:00 a.m. Eastern Time 10:00 a.m. Central Time on the same day to discuss the earnings release. To access the conference call, dial 855 760-8160, or 704 288-0624 for international callers, approximately 10 minutes prior to the scheduled start time and refere 