- 1949
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Sep.
Fuji Kosan established with 500,000 yen in capital for the purposes of procuring and supplying of fuel products.
- 1956
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Oct.
Production started at Kainan Refinery, Kainan City, Wakayama Prefecture.
- 1965
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Oct.
Hyogo Fuji Kosan Sales Co., Ltd. established in Kobe City, Hyogo Prefecture (later merged with Fuji Kosan in July 2006, operating as FK Petroleum Sales Co., ltd. before the merger).
- 1970
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May.
Stock listed in the Second Section of the Tokyo Stock Exchange.
- 1971
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Apr.
Stock listed in the Second Section of the Osaka Stock Exchange.
Aug.Stock listed in the First Sections of both the Tokyo and Osaka Stock Exchanges.
- 1985
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Jul.
Assets of the Kainan refining facility's oil refining department operations transferred to Kainan Petroleum Refining Co.,Ltd. (now ENEOS Wakayama Petroleum Refinery Co.,Ltd.) an affiliate through the applied equity method.
Company changed over from oil refining operations to sales of oil products. - 1992
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Jan.
Mitsubishi Oil Co., Ltd. (now ENEOS Holdings, lnc.) provided capital investment; cooperation was started in the areas of distribution and sales.
Apr.Financing was provided for Wakayama Petroleum Refinery Co., Ltd. (now ENEOS Wakayama Petroleum Refinery Co., Ltd.) making the company Fuji Kosan's affiliate, and commissioned production was begun.
- 1993
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Mar.
Fujiyugyo Co., Ltd. (merged with Fuji Kosan in July 2006) of Sapporo City, Hokkaido and its subsidiary Fuji Rental Co., Ltd. (now, a consolidated subsidiary), also of Sapporo City, were made subsidiaries through the acquisition of stock.
- 2001
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Apr.
Wakayama Petroleum Refinery Co., Ltd. (now ENEOS Wakayama Petroleum Refinery Co., Ltd.) ceased processing of crude oil and production of fuel oils and asphalt,to specialize in the manufacture of lubricating oil. Business tie-up with Fuji Kosan changed from commissioned production to purchase and sales of lubricant products.
- 2002
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Jan.
FK Lube Net Co., Ltd. began sales centered on retailing of lubricating oils.
- 2004
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Mar.
We have transferred our lubricating oil business to Nippon Oil Corporation (now ENEOS Holdings, Inc.)
Terminated consignment agreement with Wakayama Petroleum Refinery Co., Ltd. (now ENEOS Wakayama Petroleum Refinery Co., Ltd.) concerning the purchases and sales of lubricant oil.May.Fuji Kosan's affiliation with Wakayama Petroleum Refinery Co., Ltd. (now ENEOS Wakayama Petroleum Refinery Co., Ltd.) dissolved.
- 2006
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Apr.
Fuji Home Energy Co., Ltd. established by separating domestic fuel retail operations of Fujiyugyo Co., Ltd.
Jul.Fuji Kosan absorbed Fujiyugyo Co., Ltd. and FK Petroleum Sales Co., Ltd.
- 2008
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Dec.
Fuji Kosan's Stock was voluntarily delisted from the Osaka Securities Exchange by delisting application.
- 2010
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Jul.
Fuji Kosan absorbed FK Lube Net Co., Ltd.
- 2013
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Sep.
Fuji Kosan built a mega-solar power plant in Kisarazu City, Chiba Prefecture, and started (mega-solar) power generation business.
- 2022
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Apr.
Transferred to the Standard Market following the reorganization of the Tokyo Stock Exchange market.
Oct.Kankyo Kaihatsu Kogyo Co., Ltd. a company which is engaged in recycling and other businesses, has become a subsidiary through the acquisition of shares.
- 2023
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Mar.
Opening of the Kishiwada Plant, which blends and produces biodiesel fuel.
- 2024
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Mar.
Head Office relocated to Kanda-Surugadai, Chiyoda-ku, Tokyo