| ACE TRADING CO., LTD. | Meiwa Corporation |
| Alfresa Pharma Corporation | Merck Ltd. |
| ANDOH PARACHEMIE CO., LTD. | MIK PHARM CO., LTD |
| AR BROWN CO., LTD. | Miki & Co., Ltd. |
| Arysta Health & Nutrition Science Corporation | Mitsubishi Chemical Corporation |
| Ashland Japan Ltd. | Mitsubishi Corporation |
| Aurobindo Pharma Japan K.K. | Mitsui & Co., Ltd. |
| BANPOH TRADING CO., LTD. | Miwa Company Ltd. |
| BASF Japan Ltd. | Miyako Kagaku Co., Ltd. |
| Biobridge K.K. | Miyuki Yakugyo Co., Ltd. |
| C.B.C Co.,Ltd. | MUROMACHI CHEMICALS INC. |
| Chemix Inc. | Nabelin Co.,Ltd |
| Chori Co., Ltd. | NAGASE & CO., LTD. |
| Chukan Butsu Ltd. | Namiki Shoji Co., Ltd. |
| Daesang Japan Inc. | New Japan Chemical Co.,Ltd. |
| DKSH Japan K.K. | Nichibai Trading Co., Ltd. |
| DFE Pharma K.K | Nippon Axellia Co., Ltd. |
| DSP GOKYO FOOD & CHEMICAL Co., Ltd. | Nippon Bulk Yakuhin Co., Ltd. |
| Evonic Japan Co., Ltd. | Nisso Shoji Co., Ltd. |
| ESTCHEM CO.,LTD. | PQE Japan |
| Fuji Chemicals Ltd. | PRODUCTS ESZE CORP. |
| Fujikawa & Co., Ltd. | Pyxchemi K.K. |
| High Chem Company Ltd. | RETTENMAIER JAPAN CO., Ltd. |
| HIGUCHI INC. | Riverson & Co., Ltd. |
| Hovione Limited | Riverstone & Co., Ltd. |
| Ichimaru Co., Ltd. | Roquette Japan K.K. |
| Inagaki Yakuhin Co., Ltd. | S.Kato & Co. |
| Indena Japan Co., Ltd. | Sagamichemical Industry Co., Ltd. |
| Itochu Chemical Frontier Co., Ltd. | SANCT Corporation |
| Iwaki & Co., Ltd. | Sanofi K.K. |
| Iwase Cosfa Co., Ltd. | Seiko Trading Co., Ltd. |
| Japan Sopharchim Co., Ltd. | Shigematu & Co., Ltd. |
| Japanchem Incorporated | Shima Trading Co., Ltd. |
| Jung Corporation | Shin Nippon Yakugyo Co., Ltd. |
| KADERA YAKUHIN LTD. | Shiono Chemical Co., Ltd. |
| KANEDA CO., LTD. | Sogo Trading Co., LTD. |
| Kanematsu Chemicals Corporation | Sojitsu Corporation |
| Kawazu Sangyo Co., Ltd. | Solvay Japan, Ltd. |
| Kenko Corporation | Summit Pharmaceuticals International Corporation |
| Kimura Sangyo Co., Ltd. | Sunfco Ltd. |
| KISCO LTD. | Symrise K.K. |
| Koa Shoji Co., Ltd. | Toho Medicine & Chemical Works Ltd. |
| Kongo Yakuhin Co., Ltd. | Tohri & Company Ltd. |
| KONISHIYASU CO.,LTD | TOSCO CO.,LTD. |
| Koyo Mercantile Co., Ltd. | Watahan Trading Co., Ltd. |
| KYOWA PHARMA CHEMICAL CO.,LTD. | Watanabe Chemical Co., Ltd. |
| Marubeni Chemix Corporation | Yamaguchi Yakuhin Shokai Ltd. |
| Maruzen Chemicals Co., Ltd. | Yamakawa & Co., Ltd. |
| Matsumoto Trading Co., Ltd. | YUKI GOSEI KOGYO CO.,LTD. |
| Meggle Japan Co., Ltd. | （99 member companies） |
