- CEO
- Noriaki Sakai
- Full Time Employees
- 13,991
- Sector
- Energy
- Industry
- Oil & Gas Refining & Marketing
- Address
- 2-1, Otemachi 1-chome Tokyo Japan 100-8321
- IPO Date
- Feb 22, 2012
- Business
- Idemitsu Kosan Co., Ltd. engages in the development, manufacture, and sale of energy sources and materials across petroleum, basic chemicals, high-performance materials, power and renewable energy, and resources segments primarily in Japan and internationally. The company refines crude oil into gasoline, diesel oil, kerosene, automotive and industrial lubricants, heavy oil, aviation and marine fuel; produces basic petrochemicals including olefins such as ethylene, propylene, and butadiene, aromatics like benzene, styrene monomer, mixed xylene, and paraxylene; supplies functional materials encompassing engineering plastics, electronic materials including OLED, asphalt, microbial pesticides, soil amendments, grease, and solid-state lithium-ion battery materials; operates thermal, solar, wind, biomass, and geothermal power plants with wholesale and retail electricity sales; and explores and produces oil, gas, coal, and uranium. Idemitsu Kosan operates approximately 6,000 service stations under the apollostation brand, petrochemical plants in Chiba and Tokuyama with Japan's largest ethylene capacity, refineries, oil terminals, and power facilities, targeting automotive, industrial, electronic, agricultural, and consumer markets through networks in about 20 countries and regions.
Founded in 1911 as Idemitsu Shokai in Moji, Kitakyushu, and incorporated on March 30, 1940, the company is headquartered at 2-1 Otemachi 1-chome, Chiyoda-ku, Tokyo, Japan, with consolidated sales of 9.1 trillion yen and 150 group companies as of the latest fiscal year ended March 31.
Recent developments include the 2019 merger with Showa Shell Sekiyu; the 2021 launch of the apollostation brand and the first all-solid-state lithium battery plant; the 2022 construction of the Tokuyama biomass power plant; the acquisition of an additional stake in Fuji Oil Co. Ltd. in August 2024, raising ownership to 21.79% and designating it an equity-method affiliate to enhance crude procurement, refining synergies, and decarbonization efforts; the planned consolidation of AGRO-KANESHO as a subsidiary by December 2024 to expand in agrochemicals; and an investment in German startup Ineratec in November 2025 to advance carbon-neutral fuel technologies via Fischer-Tropsch synthesis.