| Head Office |
2-7-1, Minami-machi Minami-ku, Hiroshima 734-8555 |
| Kabe Office |
5-33-1, Kameyama-minami, Asakita-ku, (Nijiyama-Danchi), Hiroshima 731-0232 |
| Kure Branch |
1-6-16, Chuou, Kure 737-0051 |
| Kumano Office |
19-10, Kanda, Kumano-cho, Aki-gun 731-4224 |
| Onomichi Branch |
3-2, Tenma-cho, Onomichi 722-0038 |
| Hatsukaichi LNG Terminal |
12-20, Mokuzaikou-minami, Hatsukaichi 738-0022 |
| Bingo Plant |
10073-96, Obara, Nutanishi-machi, Mihara 729-0473 |
| Higashihiroshima Plant |
5-9, Yoshikawakogyo-danchi, Higashihiroshima 739-0153 |
| Technical Research Institute |
2-118, Myojin-machi, Kaita-cho, Aki-gun 736-0056 |
| Gastopia Center |
1-30, Minamitakeya-cho, Naka-ku, Hiroshima 730-0049 |
| Gastopia Itsukaichi |
2-7-43, Kairouen, Saeki-ku, Hiroshima 731-5135 |
| Gastopia Gion |
5-13-1, Nishihara, Asaminami-ku, Hiroshima 731-0113 |
| Gastopia Aki |
3-1-14, Funakoshiminami, Aki-ku, Hiroshima 736-0082 |
| Gastopia Kure |
1-6-16, Chuo, Kure 737-0051
|
| Gastopia Onomichi |
3-2, Tenma-cho, Onomichi 722-0038 |
