
| Head Office | ||
| HELIOS2 BLDG., 1-12-11, Funado, Itabashi-Ku,Tokyo 174-8567 | ||
| Tohoku Branch | ||
| 33-4, Narita 1, Chiwari, Kitakami-shi, Iwate 024-0194 | ||
| Kita Kanto Branch | ||
| 73, Hiratsuka, Ageo-shi, Saitama 362-0011 | ||
| Higashi Kanto Branch | ||
| 204, Kaname,Tsukuba-shi, Ibaraki 300-2622 | ||
| Minami Kanto Branch | ||
| 326-3, Kamimizo, Chuoku, Sagamihara-shi, Kanagawa 252-0243 | ||
| Chubu Branch | ||
| 2370-28, Hirao-cho,Yokkaichi-shi, Mie 512-1205 | ||
| Toyota Business Office | ||
| 129-2, Imae, Hanamotocho,Toyota-shi, Aichi 470-0334 | ||
| Nishi Nippon Branch | ||
| 1-10-30, Itukaichi, Ibareki-shi,Osaka 567-0005 | ||
| Nishi Nippon Electronic Department | ||
| 60, Nishishichijyokakegoshi-cho, Shimogyo-ku, Kyoto-shi, Kyoto 600-8881 | ||
| Cryogenic Department | ||
| 73, Hiratsuka, Ageo-shi, Saitama 362-0011 | ||
| Gas Production Department | ||
| Idemitsu Kosan Co., Ltd. c/o Keiyosuiso Co., Ltd 2-1 Anegasakikaigan Ichihara-shi, Chiba 299-0107 | ||
| Gas Production Department Chiba Factory | ||
| 11, Goiminamikaigan, Ichihara-shi,Chiba 290-0045 | ||
| Engineering Department | ||
| 2-8-52,Yoshinodai, Kawagoe-shi, Saitama 350-0833 | ||

