Idemitsu Kosan Co.,Ltd.

ENEOS Corporation

KASHIMA OIL CO.,LTD

Cosmo Oil Co., Ltd.

Japan Lubricating Oil Society

SHOWA YOKKAICHI SEKIYU CO.,LTD.

The Japan Petroleum Institute

Petroleum Association of Japan

Taiyo Oil Company, Limited

TOA OIL CO., LTD.

Fuji Oil Company, Ltd.

JGC Catalysts and Chemicals Ltd.

Air Liquide Japan G.K.

Nippon Ketjen Co., Ltd.

Azbil Corporation

IHI Corporation

Kawasaki Heavy Industries, Ltd.

Japan Automobile Manufacturers Association, Inc.

Engineering Advancement Association of Japan

SAMTECH Corporation

Tatsuno Corporation

Chiyoda Corporation

Toyo Engineering Corporation

JGC HOLDINGS CORPORATION

Mitsubishi Kakoki Kaisha, Ltd.

Mizuho Bank, Ltd.

Sumitomo Mitsui Banking Corporation

Mitsui Sumitomo Insurance Company, Limited

Iwatani Corporation

Shinsho Corporation

TOMOE SHOKAI Co.,LTD.

NEC Nexsolutions, Ltd.

ENEOS Research Institute, Ltd.

The Institute of Appiled Energy

The Japan Research and Development Center for Metals

The Association of Hydrogen Supply and Utilization Technology

The Institute of Energy Economics, Japan

Japan Automobile Research Institute

The Institute of Applied Energy