Purusha Research Cooperative   Timdiza multi purpose cooperative society limited   China Jiangsu International Economic and Technical Cooperation Group Ltd   Changzhou General Import & Export Cooperation   shanghai cooperpharm co.,LTD   Beijing Cooperate Pharmaceutical Co., Ltd.   Shandong united-rising pharmaceutical cooperation.,ltd.   JIANGXI HAITIAN MEDICIEN INDUSTRY LIMITED COOPERATION   CooperVision   Dalian Haiyi International Cooperation Co., Ltd   Tiantong Import and Export cooperation Limtied   Tianjin Aona Chemical Cooperation.,LTD   Shandong International United Cooperation Co., Ltd.   Shandong International United Cooperation Co., Ltd   Stevenson Cooper, Inc.   International Usefulchem Cooperation   Dalian Haiyi International Cooperation Co., Ltd   Achemo Sientific cooperation   Mondragon Corporation Cooperativa - MCC   Jiangsu International Economic-Technical Cooperation Corp.