First Quarter 2011 Westlake Chemical Corporation Earnings Conference Call
HOUSTON, April 20, 2011 /PRNewswire via COMTEX/ -- Westlake Chemical Corporation (NYSE: WLK) will release its 2011 first quarter earnings prior to the market opening on Tuesday, May 3, 2011 . The company will host a conference call at 11:00 a.m. Eastern Time ( 10:00 a.m.