Companies (129 companies)
| 1. Aluminium smelting, Refining & Remelting |
Asahi Seiren Co.,Ltd. | Daiki Aluminium Industry Co., Ltd. |
| HARITA Co.,Ltd | Hydro Aluminium Japan K.K. |
| KM Aluminium Co., Ltd. | MKN Aluminium Co., Ltd. |
| Nikkei MC Aluminium Co., Ltd. | SeikiCo., Ltd. |
| Shinzuyo Metal Industries, Ltd. | Sumitomo Chemical Co., Ltd. |
| S.S.ALUMINUM CO., LTD. | |
| 2. Aluminium Rolling & Extruding |
| AISHIN KEIKINZOKU Co., Ltd. | Almine Co., Ltd. |
| Daiwa Aluminium Mfg. Co., Ltd. | FujiLight Metal Co., Ltd. |
| Fuji sash Co., Ltd. | Honda Metal Industries, Ltd. |
| Kaimeishindo Co., Ltd. | Katagi Aluminum Products, Ltd. |
| Kato Light Metal Industry Co., Ltd. | Kobe Steel, Ltd |
| Light Metals Extrusion Development Co., Ltd. | Lixil Corporation |
| Nihon Aluminum Rolling Co., Ltd. | Nihon Shinkan Co., Ltd. |
| Nikkei Extrusion Co., Ltd. | Nippon Light Metal Co., Ltd. |
| Nippon Light Metal Holdings Co.,Ltd | Resonac Holdings Corporation |
| Riken Light Metal Industry Co., Ltd. | Shinko Aluminum Wire Co., Ltd. |
| Sakai Aluminium Corporation | UACJ Corporation |
| Toyo Aluminium K.K. | UACJ FoilCorporation |
| WashinKogyo Co., Ltd. | Yamakawakougyou Co., Ltd. |
| YasudaMetal Industries, Ltd. | YKK AP Inc. |
| 3. Fabricating & Assembling |
| AAG Engineering Co., Ltd. | Almetax Manufacturing Co., Ltd. |
| ALTEMIRA Can Co., Ltd. | ALTEMIRA Co., Ltd. |
| Azuma Pre-coat Co., Ltd. | Central Motor Wheel Co., Ltd. |
| Hunter Douglas Window Fashions Japan | Japan Transport Engineering Company |
| JFE Metal Products &Engineering Inc. | Kawasaki Heavy Industries, Ltd. |
| The Kinki Sharyo Co., Ltd | Nikkei Engineering Co., Ltd |
| Nippon Fruehauf Company Ltd. | NIPPON STEEL KOBELCO METAL PRODUCTS CO.,LTD. |
| RAYS・CWP CO.,LTD. | Rays Engineering Company Ltd. |
| Sankyo Tateyama, Inc. | Sekisui Jushi Corporation |
| SUS Corporation | TakeuchiPress Industries Co., Ltd. |
| TokiwakoutaiCorporation | UACJ Marketing & Processing Corporation |
| UACJ Metal Components Corporation | Unite, Ltd. |
| Vesuvius plc | |
| 5. Research & Others |
| Bridgestone Retail Japan Co., Ltd. | Chugai Ro Co., Ltd. |
| e-solutions, inc. | Enkei Test & Laboratory Ltd. |
| Graise Home Co., Ltd. | Inductotherm Group Japan Ltd. |
| JFE Techno-Research Corporation | Miyamoto Kogyosho |
| Nihon Almit Co., Ltd. | NipponAmazon Aluminium Co., Ltd. |
| Nippon Steel Corporation | ROZAI KOGYO KAISHA, LTD. |
| RX Japan Ltd. | Smile Time Co.,Ltd. |
| Sumitomo Electric Industries, Ltd. | YAZAKI Corporation |
| TheYokohama Rubber Co., Ltd. | Zmag, Ltd. |
| 6.Trading |
| ALCONIX CORPORATION | ALUAR Tokyo office |
| Arconic Japan | Asahi Trading Co.,Ltd. |
| Constellium Japan K.K. | C & D Group Co.,Ltd. |
| Furukawa Sangyo Kaisha,Ltd. | Granges Japan Ltd. |
| Hakudo Co., Ltd. | HANWA Co., Ltd. |
| Honda Trading Corporation | Itochu Metals Corporation |
| JFE Shoji Trade Corporation | Maehata Corporation |
| Marubeni Corporation | Marubeni Metals Co., Ltd. |
| Marukyu Co.,Ltd | Misumi Group Inc. |
| Mitsui & Co., Ltd. | Mitsubishi Corporation RtM Japan Ltd. |
| NikkeikinAluminium Core Technology Co., Ltd. | NikkeiSangyo Co., Ltd. |
| NIPPON STEEL TRADING CORPORATION | NORSK HYDRO ASA Tokyo representative office |
| Okaya & Co., Ltd. | Rio Tinto Japan Limited |
| Rusal Japan Co., Ltd. | Sato Shoji Corporation |
| SANWA METAL Co., LTD. | SDAT Co., Ltd. |
| SHINSHO Corporation | SHOKO Co., Ltd. |
| Sumitomo Corporation | Topy Enterprises,Limited |
| ToyotaTsusho Corporation | UACJ Trading Corporaiton |
