Japan Offices

Head Office

Company Name Idemitsu Kosan Co.,Ltd.
Head office 1-1 Marunouchi 3-chome, Chiyoda-ku, Tokyo 100-8321 Japan
Other Offices Daiba Office: Daiba Frontier Building, 2-3, Daiba 2-Chome, Minato-ku, Tokyo 135-8074 Japan
JP Tower Office: 28th Floor, 2-7 Marunouchi 2-chome, Chiyoda-ku, Tokyo 100-7090 Japan

Branches

Refineries, Terminals, and Technology & Engineering Center

Laboratories and Training Centers

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