| Support Member |
| AGC Inc. |
| ALPICO CO., Ltd. |
| CBC Co., Ltd. |
| Central Chemical CO., LTD. |
| CHORI CO., LTD. |
| G. Amphray Laboratories |
| Godo Shigen Co., Ltd. |
| INPEX Corporation |
| ISE CHEMICALS CORPORATION |
| ITOCHU CHEMICAL FRONTIER CORPORATION |
| Central Chemical CO., LTD. |
| JX Nippon Oil & Gas EXploration corporation |
| Kanto Natural Gas Development Co., Ltd. |
| Keiyo Kakoki Co., Ltd. |
| Kobayashi Pharmaceutical Co., Ltd. |
| K＆O Energy Group Inc. |
| K＆O Iodine Co., Ltd. |
| Kowa company LTD. |
| MANAC Incorporated |
| Mitsubishi Corporation |
| Mitsubishi Gas Chemical Company, Inc. |
| MITSUI CHEMICALS, INC. |
| MITSUI&CO., Ltd. |
| NAGASE&Co.,LTD. |
| NIPPOH CHEMICALS CO., Ltd. |
| NIPPON SHOKUBAI CO., LTD. |
| Samrat Pharmachem |
| SQM (JAPAN) CO., Ltd. |
| SQM S. A. |
| TATSUNE CO.,LTD. |
| TOHO EARTHTECH, INC. |
| TOKYO SANGYO CO.,LTD. |
| TOSOH FINECHEM CORPORATION |
| TOYOTA TSUSHO CORPORATION |
| Total 34 companies |
