SUGAR LAND--January 8, 2013--Researched by Industrial Info Resources (Sugar Land, Texas)--Arkema Incorporated (Philadelphia, Pennsylvania) recently went through a change in long-term service agreement (LTSA) contractors. Arkema owns three plants in the Houston, Texas, area of the Gulf Coast: the acrylic acid plant located in Pasadena and operated by American Acryl, the methyl mercaptan plant in Beaumont, and the sulfur chemicals plant in Houston. Other companies featured: TPC Group Incorporated (NASDAQ:TPCG)