COSL Chemicals (Tianjin) Co., Ltd., was established in Sept. 1993, a joint venture supported by Bohai Company,China National Offshore Oil Corporation(BOC,CNOOC) and China Oilfield Services Limited(COSL), both of which administered by The China National Offshore Oil Corporation (CNOOC). In Sept. 2006, with shares acquired by COSL, it has become the wholly owned company of COSL, and high-tech enterprises including research and development, produce…… |