ASAHI KASEI CORPORATION

ASAHI SEIREN CO., LTD.

Cyclers Co., Ltd.

Daiseki Co., Ltd.

DENSO CORPORATION

E&E Solutions Inc.

ENVIPRO HOLDINGS Inc.

HAMADA Co., Ltd.

Hanwa Co., Ltd.

Harita Co.,Ltd

Harita Metal Co.,Ltd.

Hirabayashi Metal Co.,Ltd.

Hitachi, Ltd.

Hitachi Solutions, Ltd.

Honda Motor Co., Ltd.

IBARAGI METAL Co,.Ltd

INFRONEER Holdings Inc.

ITOCHU Corporation

JX Nippon Research Institute for Technology & Strategy Co., Ltd.

Kamaya Corporation

KEIAISHA CO.,LTD.

Kurotani Corporation

Kyowa Sangyo Co.,Ltd.

Matsuda Sangyo Co.,Ltd.

MITSUBISHI CHEMICAL CORPORATION

Mitsubishi Materials Corporation

Mitsubishi UFJ Research and Consulting Co., Ltd.

Mizuho Research & Technologies, Ltd.

Nippon Steel Corporation

Panasonic Holdings Corporation

REVER CORPORATION

Shirai Group Co.Ltd

Suzuki Shokai Co., Ltd.

TAIHEIYO CEMENT CORPORATION

Technova Inc.

TOYOTA TSUSHO MATERIAL INCORPORATED

Hitachi-AIST Circular Economy Cooperative Research Laboratory

Japan Environmental Management Association for Industry

Japan Non-Ferrous Metals Recycling Federation

Japanese Standards Association

Laboratory for Energy Conversion Device Chemistry, Center for Mineral Processing and Metallurgy, Institute of Multidisciplinary Research for Advance materials, Tohoku University

Smart City Institute Japan

The Glass Recycling Committee of Japan