| Feb. 1992 | Mitsui & Co. Marine Service Ltd. established, wholly owned by Mitsui & Co,.Ltd. A spin-off of Mitsui & Co., Ltd.’s Bunker Oil Business Group, Petroleum Products Trading Division to engage in transactions of bunker fuels and marine lubricants denominated in US dollars. |
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| July 2005 | Mitsui & Co. Marine Service Ltd. changed its name to Mitsui & Co. Petroleum Ltd. Engaged in the consignment sales of industrial fuel oil, petroleum coke and industrial lubricants. |
| Nov. 2014 | Head office moved to the Marunouchi Garden Tower |
| May. 2020 | Head office moved to current address in Otemachi |
| Jan. 2021 | Mitsui& Co. Petroleum Ltd. changed its name to Mitsui & Co. Energy Ltd. |
| Apr. 2021 | Expanded its business and started intermediate services in relation to nuclear fuel and import and sales of general fuels, both of which were transferred from Mitsui & Co.,Ltd.’s Fuels Division. |
| Jun. 2022 | Authorized as AEO* importer by the Director-General of Tokyo Customs and Tariff Bureau, Ministry of Finance, Japan. (* Authorized Economic Operator) |
