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NIPPON STEEL Stainless Steel Corp.Kobe Steel, Ltd.IG Farbenindustrie AGJFE Holdings, Inc.American Can Co.Suzuki Co., Ltd.American Can Co.Sumitomo Metal Industries Ltd.Hitachi Metals, Ltd.Proterial Ltd.Hitachi Construction Machinery Co., Ltd.Hitachi Cable Ltd.YKK Corp.Nissan Chemical Corp.Sumitomo Metal Mining Co. Ltd.JX Nippon Mining & Metals Corp.Daido Steel Co., Ltd.Mitsui Mining & Smelting Co., Ltd.JX Nippon Mining & Metals Corp.Baoshan Iron & Steel Co., Ltd.Konami Digital Entertainment Co., Ltd.Baoshan Iron & Steel Co., Ltd.Nippon Light Metal Co., Ltd.Sintokogio Ltd.Nippon Micrometal Corp.Kennametal, Inc.Shinko Electric Industries Co., Ltd.Shinko Electric Industries Co., Ltd.Toyo Ink SC Holdings Co. Ltd.Angang Steel Co., Ltd.
Zijin Mining Group Co., Ltd.Yunnan Copper Co., Ltd.Taizhou Fenghua Copper Industry Co. Ltd.Taixing Shengda Copper Industry Co. Ltd.Jiangsu Meilin Copper Industry Co. Ltd.Hindalco Industries Ltd.Jiangsu Xinhai High-tech New Material Co., Ltd.Andritz MAERZ GmbHCopper Development Association