Asahi Pretec Corporation
Chubu Precious Metal Refinery Co., Ltd.
Chugai Mining Co., Ltd.
Chugai Ro Co., Ltd.
Chuo Denki Kogyo Co., Ltd.
Daido Kogyo Kaisha, Ltd.
Daido Steel Co., Ltd.
Daisen Sangyo Corporation
Falconbridge International Ltd.
International Trade Resources, Inc.
Japan Casting & Forging Corporation
JFE Steel Corporation
Kinsho Corporation
Kokoku Steel Casting Co., Ltd.
Mitsubishi Corporation
Mitsui & Co., Ltd.
Murase Furnace MFG Co., Ltd.
Nachi-Fujikoshi Corp.
Nankai Chemical Industry Co., Ltd.
NAS Trading Co., Ltd.
NEOMAX Co., Ltd.
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NEOMAX Materials Co., Ltd.
Nikki Chemical Co., Ltd.
Nippon Metal Industry Co., Ltd.
Nippon Steel Corporation
Nippon Steel Trading Co., Ltd.
Nippon Yakin Kogyo Co., Ltd.
Nisshin Corporation
Nisshin Steel Co., Ltd.
Nittetsu Steel Sheet Corporation
Ohgitani Kogyo Co., Ltd.
Sanwa Hydrotech Corporation
Shinko Electric Industries Co., Ltd.
Shinko-Frex Inc.
Sumitomo Corporation
Sumitomo Heavy Industries Himatex Co., Ltd.
Sumitomo Metal Industries, Ltd.
Sumitomo Metal Mining Co., Ltd.
Suzuki Industrial Co., Ltd.
Tokan Material Technology Co., Ltd.
Yamaha Corporation
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