Member Companies
   
   
   
   
   Membermber
   
   
    - IDEMITSU KOSAN CO.,LTD.
- President : Noriaki Sakai
 2-1, Otemachi 1-chome, Chiyoda-ku, Tokyo
- NICHIREKI GROUP CO.,LTD.
- President and Representative Director : 
 Manabu Obata
 4-3-29,Kudan-kita,Chiyoda-ku, Tokyo, Japan
- NISSIN KASEI CO.,LTD.
- President : Kazunori Shimoda 
 1-15, Kagurazaka,Shinjuku-ku, Tokyo, Japan
- SHOWA REKISEI INDUSTRIES CO.,LTD.
- President : Hiroshi Hamamoto 
 4-26, Hojyoguchi, Himeji, Hyogo, Japan
- TOA ROAD CORPORATION
-  President : Kyouichi Morishita
 7-3-7, Roppongi, Minato-ku, Tokyo Japan
Supporting Member
   
    - Asahi Kasei Corporation
- President & Representative Director, Presidential Executive Officer : Hideki Kobori
 Hibiya Mitsui Tower, 1-1-2, Yurakucho, Chiyoda-ku, Tokyo, Japan
- MAEDA KOSEN CO.,LTD.
- CEO : Takahiro Maeda 
 Shiba Park Bldg. A-12F, 2-4-1, Shibakoen, Minato-ku, Tokyo, Japan