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Hitachi Construction Machinery Co., Ltd.UBE Corp.Taiyuan University of TechnologyXi'an University of Science & TechnologyHuainan Mining (Group) Co., Ltd.Huainan Mining (Group) Co., Ltd.Heilongjiang University of Science & TechnologyHuaibei Mining Co., Ltd.Taiyuan Institute of China Coal Research InstituteJinneng Holding Equipment Manufacturing Group Co. Ltd.Jinneng Holdings Coal Industry Group Co., Ltd.Bochumer Eisenhütte GmbH & Co. KGShenzhen Inovance Technology Co., Ltd.China Coal No. 3 Construction (Group) Corp. Ltd.DetNet South Africa (Pty) Ltd.China Coal No. 3 Construction (Group) Corp. Ltd.Shenzhen Inovance Technology Co., Ltd.China Coal Zhangjiakou Coal Mining Machinery Co. Ltd.Anhui Hengyuan Coal Industry & Electricity Power Co., Ltd.Zhengzhou Coal Mining Machinery Group Co., Ltd.National Mining UniversityShanxi Fenxi Mining Industry Group Co., Ltd.China Coal Xinji Energy Co., Ltd.Shanxi Lu'an Group Yuwu Coal Industry Co., Ltd.Pingdingshan Tianan Coal Mining Co., Ltd.Pingdingshan Tianan Coal Mining Co., Ltd.Xinwen Mining Group Co., Ltd.Shandong Energy Heavy Equipment Manufacturing Group Co., Ltd.Yunnan Yuntianhua Co., Ltd.Shanxi Coking Coal Group Co. Ltd.
PetroChina Co., Ltd.Idemitsu Kosan Co., Ltd.Exxon Mobil Corp.Mobil Corp.Standard Oil Co.Osaka Gas Co., Ltd.Saudi Arabian Oil Co.Schlumberger Technologies, Inc.Standard Oil Co.Tokyo Gas Co., Ltd.China National Offshore Oil Corp.China National Offshore Oil Corp.Schlumberger Canada Ltd.JSWChina General Nuclear Power Corp.China General Nuclear Power Corp.Chevron U.S.A., Inc.Voith GmbH & Co. KGaADuksan Co., Ltd.Dresser Industries, Inc.Dresser Industries, Inc.Beijing Yanshan Petrochemical Co., Ltd.Électricité de France SAElf Atochem SAHalliburton Co.Messer SE & Co. KGaA (Germany)Conoco, Inc.ConocoPhillipsSinopec Oilfield Service Corp.Conoco, Inc.