

| Sun Allomer Ltd. |
| Asahi Kasei Corporation | Tosoh Corporation |
| Ube Industries,Ltd | Mitsui Chemicals, Inc. |
| Mitsubishi Chemical Corporation | Sumitomo Pharmaceuticals Co., Ltd., |
| The Furukawa Electric Co,Ltd. | Mitsubishi Aluminum Company, Ltd. |
| Furukawa-Sky Aluminum Corp. | Nippon Light Metal Company, Ltd. |
| Japan Chemical Industry Association (JCIA) | The
Japan Petrochemical Industry Association (JPCA) |
| Japan Aluminum Assosiation |