Branches

(The names in blue indicate main business offices.)

Head Office Head Office | Engineering Division | Natural Resources, Environment and Energy Engineering Division |Advanced Equipment Division | Tamagawa Machinery Division
Corporate Strategy Department General Affairs and Personnel Department Personnel Development and Training Center	Tel +81-3-3221-1741 Fax +81-3-3239-8763	1-14-16 Kudankita, Chiyoda-ku, Tokyo 102-8205, Japan
Accounting and Financing Department	Tel +81-3-3221-1391 Fax +81-3-3239-8763
Management Audit Department CSR Office Internal Audit Office	Tel +81-3-3221-1740 Fax +81-3-3221-7505
Safety Control Department	Tel +81-3-3221-2456 Fax +81-3-3288-4575
Sales Management Department	Tel +81-3-3221-1471 Fax +81-3-3221-7505
Procurement Management Department	Tel +81-3-3221-1766 Fax +81-3-3221-1853
Engineering and Technology Management Department	Tel +81-3-3221-1941 Fax +81-3-3221-1583
Environment Group
Technology Group
Quality Assurance Department
Overseas Business Management Department	Tel +81-3-3221-1371 Fax +81-3-3221-1377
Technology Development Department	Tel +81-3-3221-1491 Fax +81-3-3288-4575
Information System Department	Tel +81-3-3221-1108 Fax +81-3-3288-4575
Mine Engineering Department	Tel +81-3-3221-2471 Fax +81-3-3221-2472
Engineering Division Head Office | Engineering Division | Natural Resources, Environment and Energy Engineering Division | Advanced Equipment Division | Tamagawa Machinery Division
Administration Department	Tel +81-3-3221-1941 Fax +81-3-3221-1583	1-14-16 Kudankita, Chiyoda-ku, Tokyo 102-8205, Japan
Procurement Department(Kiba Office)	Tel +81-3-5665-6153 Fax +81-3-5665-6152	Kibaeitai-bldg., 2th Fl., 3-7-13 Toyo Koto-ku, Tokyo 135-0016,Japan
Sales Department(Kiba Office)	Tel +81-3-5665-6154 Fax +81-3-5665-6152
Engineering Department	Tel +81-3-5665-6150 Fax +81-3-5665-6151	Kibaeitai-bldg., 10th Fl., 3-7-13 Toyo Koto-ku, Tokyo 135-0016,Japan
Akita Branch Office	Tel +81-18-895-7211 Fax +81-18-895-7212	2-8-28 Barajima, Akita-shi, Akita 010-0065, Japan
Joban Branch Office	Tel +81-246-54-5181 Fax +81-246-54-4190	15-1 Aza-Fukimatsu, Onahama, Iwaki-shi, Fukushima 971-8101, Japan
Kanto Branch Office (Kiba Office)	Tel +81-3-5665-6155 Fax +81-3-5665-6152	Kibaeitai-bldg., 2nd Fl., 3-7-13 Toyo Koto-ku, Tokyo 135-0016,Japan
Osaka Branch Office	Tel +81-6-6358-3017 Fax +81-6-6358-0843	1-8-30 OAP Tower, 10th Fl., Tenmabashi, Kita-ku, Osaka-shi, Osaka 530-6010, Japan
Seibu Branch Office	Tel +81-86-455-4258 Fax +81-86-455-2193	6-14-63 Minamise, Kurashiki-shi, Okayama 712-8055, Japan
Natural Resources, Environment and Energy Engineering Division Head Office | Engineering Division | Natural Resources, Environment and Energy Engineering Division | Advanced Equipment Division | Tamagawa Machinery Division
Administration Department	Tel +81-3-3221-2471 Fax +81-3-3221-2472	1-14-16 Kudankita, Chiyoda-ku, Tokyo 102-8205, Japan
Procurement Department
Quality Assurance Department
Sales Department (Energy Group) (Natural Resources Group)(Environment Group)
Environment Civil Engineeringn Department
Natural Resources Survey Department (Natural Resources Survey Group) (Geotechnical Survey Group)	Tel +81-48-646-6083 Fax +81-48-646-6081	1-297 Kitabukurocho, Oomiya-ku, Saitama-shi, Saitama 330-0835 Japan
Environmental Survey Department (Saitama Office) (Environmental Assessment Group)	Tel +81-48-646-6076 Fax +81-48-646-6081
Environmental Measuring Department	Tel +81-48-646-6071 Fax +81-48-646-6081
Environmental Engineering Center	Tel +81-48-641-5191 Fax +81-48-641-8660
Osaka Chemical Analysis Center	Tel +81-72-221-6011 Fax +81-72-222-0034	6-153-4 Kannabecho, Sakai-ku, Sakai-Shi, Osaka 590-0984 Japan
Drilling Department	Tel +81-3-3221-2471 Fax +81-3-3221-2472	1-14-16 Kudankita, Chiyoda-ku, Tokyo 102-8205, Japan
Boring Center	Tel +81-186-23-2231 Fax +81-186-23-2759	9-4 Shishizawa, Aza, Osarizawa, Kazuno-shi, Akita 018-5202, Japan
Tokai Engineering Office	Tel +81-29-282-2331 Fax +81-29-282-2378	622-6 Funaishikawa, Tokaimura, Naka-gun, Ibaraki 319-1111, Japan
Rokkasho Office	Tel +81-175-71-4201 Fax +81-175-71-4219	Nihongennen-nai, 4-74 Okizuke, Aza, Obuti, Oaza, Rokkasho-mura, Kamikita-gun, Aomori 039-3212 Japan
Advanced Equipment Division Head Office | Engineering Division | Natural Resources, Environment and Energy Engineering Division | Advanced Equipment Division | Tamagawa Machinery Division
Administration Department	Tel +81-3-3221-1091 Fax +81-3-3221-1611	1-14-16 Kudankita, Chiyoda-ku, Tokyo 102-8205, Japan
Sales Department
Procurement Department
Production Control Department
Akita Technical Center (ATC)	Tel +81-18-826-0011 Fax +81-18-826-0012	4-1-3 Goshonoyumoto, Akika-shi, Akita 010-1415, Japan
Iwaki Technical Center(ITC)	Tel +81-246-42-4641 Fax +81-246-42-2290	4-2 Chubu Kogyo Danchi, Iwaki-shi, Fukushima 972-8338, Japan
Minokamo Technical Center (MTC)	Tel +81-574-25-6802 Fax +81-574-25-8300	1346-2 Aza-Fukada Kono Kamonocho, Minokamo-shi, Gifu 505-0053, Japan
System Technical Center (STC)	Tel +81-48-641-5790 Fax +81-48-641-5791	Mitsubishi Materials Corporation 1-297 Kitabukuro-cho, Omiya-ku, Saitama 330-0835, Japan
Tamagawa Machinery Division Head Office | Engineering Division | Natural Resources, Environment and Energy Engineering Division | Advanced Equipment Division | Tamagawa Machinery Division
Sales Department	Tel +81-3-3221-1371 Fax +81-3-3221-1377	1-14-16 Kudankita, Chiyoda-ku, Tokyo 102-8205, Japan
Osaka Office	Tel +81-6-6357-3500 Fax +81-6-6358-0843	OAP Tower, 10th Fl., 1-8-30 Tenmabashi, Kita-ku, Osaka 530-6010, Japan
Nagaoka Plant	Tel +81-258-24-1850 Fax +81-258-24-7012	2-4-1 Shirooka, Nagaoka-shi, Niigata 940-8602, Japan