|1916||Founded Hashimoto Shokodo Pharmaceutical Plant in Sakai City, Osaka,
and started manufacturing hydrosulfate.
|1930||Started manufacturing fluorine compounds.|
|1934||Established general partnership, Hashimoto Pharmaceutical Plant.|
|1944||Established Hashimoto Chemical Industrial Co., Ltd. (Sakai City, Osaka)|
|1945||Resumed manufacturing copper sulfate in Shorinji Factory. (Sakai City, Osaka)|
|1956||Resumed the operation at Sanpo Factory (Sakai City, Osaka)
and additionally built production facility for hydrofluoric acid.
|1961||Additionally built production facilities for hydrofluoric acid,
aluminum fluoride and other fluoride products.
|1963||Succeeded in industrialization of borontrifluoride gas in Japan.|
|1970||Established Izumi Factory. (Izumiotsu City, Osaka)|
|1971||Completed production facility for dry aluminum fluoride in Sanpo Factory.|
|1973||Moved and merged the facilities in Shorinji Factory with Izumi Factory.|
|1984||Completed cleaning plant (PAS-I) for high purity hydrofluoric acid used for semiconductors in Sanpo Factory.|
|1990||Moved the head office to Nishi-ku in Osaka City, Osaka.
Changed the company name to HASHIMOTO CHEMICAL CORPORATION
Completed cleaning plant (PAS-II) for ultra high purity hydrofluoric acid used for semiconductors in Sanpo Factory.
|1991||Separated the Transportation Department and established BLUE EXPRESS, INC. 100% owned affiliated company.|
|1992||Stopped manufacturing aluminum alloy.|
|1994||Established joint company, FECT CO., LTD.. in South Korea.|
|1996||Completed new plant for lithium hexafluorophosphate in Izumi Factory.|
|1997||New administrative office and laboratory were established in Sanpo Factory.
Changed the company name to STELLA CHEMIFA CORPORATION.
|1999||Completed cleaning plant (PAS-III) for ultra high purity hydrofluoric acid used for semiconductors in Sanpo Factory.
Moved the head office to Awaji-Machi Chuo-ku in Osaka City, Osaka.
Listed on the second section of Osaka Securities Exchange.
|2000||Listed on the first section of Tokyo Stock Exchange and Osaka Securities Exchange.|
|2001||Established a wholly owned subsidiary company in Singapore, STELLA CHEMIFA SINGAPORE PTE LTD.|
|2002||Established ZHEJIANG BLUE STAR CHEMICAL CO., LTD. in China.|
|2006||Expanded Sanpo Factory.|
|2007||Established a wholly owned subsidiary company, STELLA PHARMA CORPORATION. Medical business went into full scale operation.
Completed cleaning plant (PAS-IV) for ultra high purity hydrofluoric acid used for semiconductors in Sanpo Factory.
|2008||Established STELLA GREEN CORPORATION, wholly owned subsidiary company.|
|2009||Acquired ARISE CORPORATE CORPORATION. (became wholly owned)|
|2010||Established a wholly owned affiliated company, COSME DE STELLA CORPORATION to which STELLA PHARMA CORPORATION transferred the cosmetic business.|
|2012||Expansion plant for lithium hexafluorophosphate in Izumi Factory.|
|2014||Established Kitakyushu Factory. (Yahatanishi-ku, Kitakyushu City, Fukuoka)|
|2015||Established QUZHOU BDX NEW CHEMICAL MATERIALS CO., LTD. in China.|
|2016||Converted to a company with an Audit and Supervisory Committee.|
|2018||Moved the head office to Fushimi-Machi Chuo-Ku in Osaka City, Osaka.|
STELLA PHARMA CORPORATION. listed on Tokyo Stock Exchange Mothers.