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1915 April The Founder, Chuji Koshiro started working as an apprentice for a medicine wholesaler Ozaki Yakichi Shoten in Osaka.
1918 April Chuiji Koshiro promoted to the head clerk and started exploring the industrial medicine market.
1925 April Started the import and distribution of petrolatum produced by Pennsylvania Refining Company, which is currently known as Calumet Refining, LLC.
1930 August 1 Became independent of Ozaki Yakichi Shoten at the age of 30 and started his own business.
Koshiro Chuji Shoten, a trading company handling medicines, founded at 20 1-chome, Kokumachi, Higashi-ku, Osaka City. Started sales of raw materials for medicines and cosmetics and the production of beeswax.
1933 An office established in Doshomachi, which is a historical medical quarter in Higashi-ku, Osaka City.
1947 March 25 C. Koshiro & Co., Ltd. incorporated. Chuji Koshiro became the first president.
1949 December The first plant established at 56, 2-chome, Tokui-cho, Higashi-ku, Osaka City. Started the production of menthol.
1955 August The head office was moved to 5, 3-chome, Dosho-machi, Higashi-ku, Osaka City.
1962 December Mino Plant established at 1141 Ina, Mino City, Osaka Prefecture. Started the extraction business of natural plants.
1968 April The R&D Building constructed in Mino Plant.
1978 December 18 Chuichi Koshiro named as president.
1982 May 7 Kameoka Plant established at 57 Wakamiya-suji, Namikawa, Oi-cho, Kameoka City, Kyoto Prefecture. Started the extraction business of natural plants. The menthol facility transferred from Osaka to Kameoka.
1983 May The facilities for refining and bleaching beeswax transferred from Mino Plant to Kameoka Plant, ending the production of beeswax in Mino Plant.
1985 July 1 The company name changed to Koshiro Company Limited.
1987 June The R&D Building constructed in Kameoka Plant. The research function transferred from Mino Plant.
1989 February 13 Higashi-ku and Minami-ku of Osaka City were merged, and the address of headquarters was changed to Doshomachi 2-5-8, Chuo-ku, Osaka City.
1989 December Completed the 1st pharmaceutical production plant in Kameoka Plant.
1990 Augst 1 Celebrated the 60th anniversary of company founding.
1991 December Completed the employees building in Kameoka Plant.
1994 February Completed the raw material warehouses in Kameoka Plant.
1998 Completed the 2nd pharmaceutical production plant in Kameoka Plant.
2000 Completed the finished product warehouse in Kameoka Plant.
2001 January 1 Tadaaki Koshiro named as president.
2001 January Completed the 1st extraction plant, the spray drying plant and the beeswax production plant in Kameoka Plant.
2005 June Completed the 2nd extraction plant in Kameoka Plant.
2005 August 1 The 75th anniversary of company founding.
2007 May 7 The 25th anniversary of the establishment of Kameoka Plant.
2008 April 8 Planted a meta sequoia in Kameoka Plant in commemoration of the plant's 25th anniversary.
2008 May Completed the reception building and the 1st and 2nd raw material warehouses in Kameoka Plant.
2010 May Completed the second phase construction of the 2nd extraction facility in Kameoka Plant.
2010 August 1 The 80th anniversary of company founding.
2012 February 26 A ginko tree planted in Kameoka Plant in commemoration of the 50th anniversary of the extraction business. Completed the 5th extraction plant in Kameoka Plant.
2012 May 7 Celebrated the 50th anniversary of the extraction business.
2013 May Completed the second phase construction of the 1st extraction facility in Kameoka Plant.
2013 September Completed the third phase construction of the 2nd extraction facility in Kameoka Plant.
2015 April 1 The 100th anniversary of the Founder Chuji Koshiro’s Apprenticeship in Osaka.
100  to  100   First Stage
2015 - 2030   2015-2020
2015 May 18 Donated air-arches to Kameoka City for the 1st Kameoka Half Marathon.
The 60th anniversary of the municipality of Kameoka City
The 60th anniversary of the relocation of headquarters
2015 July 1 The 30th anniversary of the current company name.
2015 August 1 The 85th anniversary of the company founding.
2015 August 7 An annual fireworks display of Kameoka Plant.
2017 March 25 The 70th Anniversary of the establishment of Koshiro Company Limited.
2017 March 26 Cerebrated the completion of the 2nd phase construction of the R&D Building in Kameoka Plant.
2017 March Completed the 3rd phase construction of the 1st extraction facility in Kameoka Plant.
2017 May Completed the 2nd phase construction of the 5th extraction facility in Kameoka Plant.
2017 June 1
(May 7 by lunar calendar)
Plant tour held in commemoration of the 35th anniversary of the establishment of Kameoka Plant.
2017 June 30 Held completion ceremony of headquarters gate which was constructed in commemoration of the 70th anniversary of the company’s incorporation.
2017 December 21 Held planting ceremony of metasequoia trees in commemoration of the 35th anniversary of the establishment of Kameoka Plant.
2018 February 26 The 1st stage the 1st phase construction Introduction of gas to Kameoka Plant Completion of the conversion of the energy source
2018 August 1 The 88th anniversary of the company foundation Jichinsai ground breaking ceremony held (redevelopment of the north western part).

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May the natural blessing be with you - For your smiley and healthy life.

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