Sri Trang Agro-Industry Public Company Ltd
Thai Rubber Latex Corporation (Thailand) Public Company Ltd. Thai Hua Rubber Public Company Ltd. Von Bundit Co. Ltd. Southland Rubber Co. Ltd. Sinochem Group Co. Ltd. Apcotex Industries Ltd. Yunnan State Farms Group Co. Ltd. Firestone Natural Rubber Company
and Num Rubber & Latex Co.Ltd.