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History

Earliest days

From the establishment of Aoki Sekiyu, the antecedent company, until the establishment of Taiyo Oil

Events in the oil industry and in society Year Month Events concerning Taiyo Oil
Ford Model T advertisement 1908
(Meiji 41)
September The late Shigekichi Aoki, the founder, established Aoki Sekiyu in Takaoka Town, Kochi Prefecture (currently Tosa city).
  1915
(Taisho 4)
February Relocated to Yawatahama City in Ehime Prefecture
End of the First World War 1918
(Taisho 7)
- Kerosene production was started from the materials supplied by Rising Sun's Kyushu-Saitozaki Oil Refinery.
Great Kanto Earthquake 1923
(Taisho 12)
August Started to refine oil in a Hickman Distillation (Method) Unit.
Impact of the Great Depression being felt in Japan (the Repeal of the Gold Embargo) 1930
(Showa 5)
May Renamed as Aoki Sekiyu Co., Ltd.
Capital of JPY 20 thousand.
The National Mobilization Law was legislated 1938
(Showa 13)
October The factory was relocated to Kameoka Village in Ochi-gun, Ehime Prefecture (the current site of Shikoku Operations).
Outbreak of War in the Pacific 1941
(Showa 16)
February The refinery sections of Aoki Sekiyu, Mikado Seiyu, and Matsuoka Sekiyu were integrated into Taiyo Oil Co., Ltd. The head office was established in Mita-toyooka, Shiba-ku, Tokyo.
Capital of JPY 1 million.
The Petroleum Monopoly Law was legislated 1943
(Showa 18)
July The head office was relocated to Yawatahama City in Ehime prefecture. The capital increased to JPY 4 million.

Postwar recovery period

Full-scale independent production activities began during this period.

Events in the oil industry and in society Year Month Events concerning Taiyo Oil
The value of the yen was fixed at ¥360 per US$1 1949
(Showa 24)
December GHQ allowed reopening of refineries on the Pacific Coast. Construction of facilities for crude oil distillation was started.
The Treaty of San Francisco and the US-Japan Security Treaty were signed in San Francisco 1951
(Showa 26)
February Permission was granted to refine petroleum. An order from Shell Sekiyu was received, and a refinery with an output of 500 barrels/day was started.
The National Federation of Petroleum Commercial Associations (Zensekiren) was established. 1953
(Showa 28)
July The capital increased to JPY 48 million. Taiyo Oil started to operate its own refinery.
The Arabian Oil Company, Ltd. was established. 1958
(Showa 33)
October Soviet crude oil was imported to Japan for the first time.
The 1964 Tokyo Olympic Games
The Tokaido Shinkansen Line opened, linking Tokyo and Shin Osaka
1964
(Showa 39)
June The late Ryosaku Aoki became the second president.
The capital increased to JPY 52 million.
September Rumanian crude oil was imported to Japan for the first time.
November The capacity of the crude distillation unit was confirmed to be 59,000 barrels/day.

Growth period

The sophistication of refining operations on a full-scale basis began during this period.

Events in the oil industry and in society Year Month Events concerning Taiyo Oil
Beginning of the Izanagi economic boom of Japan 1965
(Showa 40)
September The late Shigeyoshi Aoki became the third president.
Creation of the European Economic Community (EEC) and the Association of South-East Asian Nations (ASEAN) 1967
(Showa 42)
July The capital increased to JPY 100 million.
The Environmental Agency issued its first "White Paper on the Environment."
The Apollo 11 space flight landed the first humans on Earth's Moon.
The Tomei Expressway opened.
1969
(Showa 44)
April Taiyo Oil became a member of the Petroleum Association of Japan.
An international exposition was held in the city of Suita, Osaka. 1970
(Showa 45)
December The capital increased to JPY 400 million.
Prime minister Tanaka and his Cabinet resigned. 1974
(Showa 49)
September The capacity of the crude distillation unit was augmented to 69,000 barrels/day.
The 1st G6 summit took place in Paris 1975
(Showa 50)
July The Kikuma Refinery (currently Shikoku Operations) received JIS (Japanese Industrial Standards) accreditation.
  1976
(Showa 51)
July Established a 90-day petroleum stockpiling system.
The Gasoline Retail Business Law was legislated.
The 3rd G7 Summit was held in London.
1977
(Showa 52)
January Taiyo Oil became the first Japanese corporation to conduct DD crude oil trading with the Malaysian national petroleum corporation (PETRONAS).
Reached the target of 90 days private reserve. 1981
(Showa 56)
November The head office was relocated to the current location (2-2-3 Uchisaiwai-cho).
The 8th G7 Summit was held at the Château de Versailles. 1982
(Showa 57)
March An underground oil stockpiling demonstration plant was completed on the premises of Taiyo's Kikuma Refinery. Taiyo Oil took charge of demonstration operations.
  1983
(Showa 58)
September Reduced the capacity of the crude distillation unit by 4,000 barrels/day to 65,000 barrels/day.
Tokyo Summit 1986
(Showa 61)
March Made investments in the oil development project in Angola's offshore oil fields.
November Joined the oil development project in Malaysia's offshore oil fields.
Collapse of the bubble economy
German reunification
1991
(Heisei 3)
June The crude oil tanker "Taiyoh I" (88,543 DWT) was put into service.
With the completion of the BTX production facilities and the launch of the operation thereat, Taiyo Oil forayed into petrochemicals.
December The petroleum product tanker "Taiyoh II" (58,950 DWT) was put into service.

Period of development

Expansion of operations with the abolition of the Provisional Measures Law on the Importation of Specific Petroleum Refined Products

Events in the oil industry and in society Year Month Events concerning Taiyo Oil
Promulgation of a revised Air Pollution Control Law
Abolition of The Provisional Measures Law on the Importation of Specific Petroleum Refined Products
1996
(Heisei 8)
July With partial transfer of the functions of the head office, Kikuma Refinery was renamed Shikoku Operations.
18th Olympic Winter Games were held in Nagano.
Oslo Peace Accords were signed by the United States, the PLO, and Israel.
1998
(Heisei 10)
October Participated in the Tokyo Commodity Exchange as a primary member of the oil futures market.
December Shikoku Operations received ISO 9002 certification.
The United Nations announced that the world population had passed the six billion mark. 1999
(Heisei 11)
October Kunishi Kawai became the fourth president.
The 2002 FIFA World Cup was held in South Korea and Japan. 2002
(Heisei 14)
March Shikoku Operations received ISO 14001 certification.
US President George W. Bush declared war on Iraq. 2003
(Heisei 15)
August The capacity of the crude distillation unit was augmented to 120,000 barrels/day.
October Taiyo Petrochemical Co., Ltd. was established.
December Acquired from Mitsui Chemicals, Inc., a styrene monomer plant in Yamaguchi.
The 2006 FIFA World Cup was held in Germany. 2006
(Heisei 18)
June Yutaka Oka became the fifth president.
WTI crude oil spot price traded at the futures market in crude oil operated by the New York Mercantile Exchange (NYMEX) fell below $100 per barrel for the first time. 2008
(Heisei 20)
March A new office and new onshore shipping facilities on the premises of Shikoku Operations were completed.
September 100th Anniversary of the company's foundation
A new brand "SOLATO" and a new company's logo were introduced. Every item sold or installed at SS was redesigne.
  2009
(Heisei 21)
March The capital increased to JPY 900 million.
September The capital increased to JPY 2.65 billion.
December The capital increased to JPY 4.65 billion.
  2010
(Heisei 22)
March The capital increased to JPY 5.6 billion.
November Completion of the construction and startup of Resid Fluid Catalytic Cracking Unit with a capacity of 25,000 barrels/day
The 2014 FIFA World Cup was held in Brazil. 2014
(Heisei 26)
March Merged with Taiyo Petrochemical Co., Ltd.
March Reduced the capacity of the crude distillation unit to 118,000 barrels/day.
August The capacity of the Resid Fluid Catalytic Cracking Unit was augmented to 29,000 barrels/day.
November Completion of the construction and startup of Trans alkylation unit with a capacity of 10,000 barrels/day.
Rio de Janeiro Olympic Games held. 2016
(Heisei 28)
December All shares of Nansei Sekiyu K.K. acquired.
  2017
(Heisei 29)
March The capacity of the crude distillation unit was augmented to 138,000 barrels/day.
March The capacity of the Resid Fluid Catalytic Cracking Unit was augmented to 32,000 barrels/day.