Japan (Offices)
Head Office
Agri‐Bio Business Department
SI Building Aoyama, 1-3-6 Kita-Aoyama, Minato-ku, Tokyo 107-0061, Japan
Energy & Mineral Resources Department
9th Floor, Kyodo Tsushin Kaikan, 2-2-5 Toranomon, Minato-ku, Tokyo 105-0001, Japan
Information Systems Department
7th Floor, Pacific Marks Shin-Urayasu, 1-9-2 Mihama, Urayasu-shi, Chiba 279-0011, Japan
Refineries, Plants, and Process Development Centers
Hokkaido Refinery
25-1 Masago-cho, Tomakomai-shi, Hokkaido 059-1392, Japan
Tel.: +81-144-56-0121
Chiba Refinery/Plant
2-1 Anesakikaigan, Ichihara-shi, Chiba 299-0192, Japan
Tel.: +81-436-60-1700
Aichi Refinery
11 Minami-Hamamachi, Chita-shi, Aichi 478-8555, Japan
Tel.: +81-562-55-1111
Tokuyama Refinery/Plant
1-1 Shingumachi, Shunan-shi, Yamaguchi 745-8613, Japan
Tel.: +81-834-21-1100
Technology&Engineering Center
Inside Idemitsu Kosan's Chiba Refinery
2-1 Anesakikaigan, Ichihara-shi, Chiba 299-0194, Japan
Tel.: +81-436-61-7905 (switchboard)
Research Laboratories and Training Center
Advanced Technology Research Laboratories
1280 Kamiizumi, Sodegaura-shi, Chiba 299-0293, Japan
Tel.: +81-438-75-2312
Functional Materials Laboratory
1-1 Anesakikaigan, Ichihara-shi, Chiba 299-0193, Japan
Lubricants Research Laboratory
24-4 Anesakikaigan, Ichihara-shi, Chiba 299-0107, Japan
Tel.: +81-436-61-2502
Training Center
25-5 Anesakikaigan, Ichihara-shi, Chiba 299-0107, Japan
Tel.: +81-436-61-1821
