Platinum

ExxonMobil

Idemitsu Kosan Co., Ltd.

JTEKT CORPORATION

NIPPON OIL CORPORATION

NSK Ltd.

NTN Corporation

TOYOTA MOTOR Corporation


Gold

Honda Motor Co., Ltd.

IHI Corporation

Kyodo Yushi Co., Ltd.

TOYOTA BOSHOKU CORPORATION


Silver

Afton Chemical Japan Corporation

AISIN AW CO., LTD.

AISIN SEIKI Co., Ltd.

ART METAL MFG. CO., LTD.

Chevron Japan Ltd.

COSMO OIL LUBRICANTS CO., LTD.

DAIDO METAL Co., Ltd.

Daihatsu Motor Co., Ltd

DENSO CORPORATION

Evonik Degussa Japan Co., Ltd.

EXEDY Corporation

INFINEUM SINGAPORE PTE. LTD.

JAPAN ENERGY CORPORATION

NACHI-FUJIKOSHI CORP.

NIPPON GREASE Co., LTD.

NISSAN MOTOR CO., LTD.

NOK Corporation / EAGLE INDUTRY CO.,LTD

OILES CORPORATION

Showa Shell Sekiyu K.K.

SUZUKI MOTOR CORPORATION

TAIHO KOGYO CO., LTD.


Bronze

ADVICS CO., LTD.

AICHI STEEL CORPORATION

AISIN CHEMICAL CO., LTD.

automax co., LTD.

CSM Instruments SA / NANOTEC CO.

DAIDO CHEMICAL INDUSTRY CO., LTD.

Dynax Corporation

EXEDY FRICTION MATERIAL CO., LTD.

Hino Motors, Ltd.

JATCO Ltd.

KYB Corporation

NSK - Warner K.K.

Sanyo Chemical Industries, Ltd.

Shinko Engineering Co., Ltd.

SOMIC ISHIKAWA INC.

TEIKOKU PISTON RING CO., LTD.

TORISHIMA PUMP MFG. CO., LTD.