1929	Established as Japanese Pharmacopoeia Admitted Drug manufacturing company at Yoshizuka, Fukuoka-city, by Yoshiteru Takasugi, the first president.
1948	Incorporated to Takasugi Pharmaceutical Co., Ltd.
1955	Became the first special agency of Ube Industries, Ltd. and Mitsui Chemicals, Inc.
1963	Moved to the present address with a new office building and a new factory.
1973	Expansion of the second factory for inorganic reagents. (A factory for sodium carbonate anhydrous was established and the ability was expanded.)
1978	A factory for pharmaceuticals accommodating to G.M.P. (Good Manufacturing Practice) was built.
1981	The third factory for inorganic reagents was built.
1986	The fourth factory and the fifth factory for inorganic reagents were built.
1989	Inauguration of The Intelligent Building of the main office (the laboratory was expanded).
1991	The sixth factory for inorganic reagents was established.
1993	Reverse osmosis system by using well water (producing high purity water) was established.
1994	A factory was established cooperating with Nippon Kayaku Food Techno Co., Ltd.
1997	The seventh factory for inorganic reagents was built.
2001	Southern acid agents factory was built. Acquisition of ISO 9002 (reagent products). Tokyo office was established.
2002	Our basic system supported by computer has been renewed. Started inspection of bacteria counting for urea. Our reverse osmosis facility has expanded.(Our output has doubled.) In cooperation with Mitsubishi Chemical Engineering Corporation, we have started a biannual facilities maintenance check. New atomic absorption photometer has been purchased.
2003	Research & Development Division was established. A plant for caustic soda was built. We have conformed our quality management system according to ISO 9001:2000 regulations and have acquired its certification. Tokyo Sales Branch was established.(-2006) A plant for nitric acid and concentrated sulfuric acid was built. An effluent treatment facility was enhanced.
2004	Acquisition of ISO 14001:2004. A Plant for urea was newly established.
2005	Eastern building was acquired in order to R&D facilities be enhanced.
2006	We have conformed our quality management system according to ISO 9001:2004 regulations and have acquired its certification.
2007	Hiroshima logistics center was newly established, and we started sales activity in the Chugoku region.
2008	A plant for dilute sulfuric acid was moved and its capacity was increased.
2009	We have conformed our quality management system according to ISO 9001:2008 regulations and have acquired its certification. We reached the 80th anniversary of the establishment and issued a memorial corporate history book. We made a product catalog.
2010	For odor reduction, the scrubber was intensified. Alcohol tank was renewed. (for Ethanol and Alcohol for lamp fuel) Air-conditioning equipment for R&D was intensified.
2011	The Sodium Hydroxide solution factories were combined and the manufacturing capacity and quality has been increased.
2012	The corporate symbol was renewed; The image of "clear-blue water” was added under “the red diamond" which had been used as the previous symbol.
2013	The main warehouse was renewed. All the racks and the interior were refurnished. Rice growing activity was started for employee welfare benefits. The employees went on a company trip to Bangkok, Thailand. All the computers have been changed to Windows 7 machines.
2014	The track scale was renewed.
2015	A dispensing tank of Sodium Hypochlorite was installed and one of the existing tanks was renewed. Halal Certification was acquired. (for Sodium Carbonate products excluding Sodium Carbonate Decahydrate and High-purity Sodium Carbonate)
2016	A capper equipment was installed at the quasi-pharmaceutical factory. The manufacturing line of Purified Water was renewed. 50MT tank for pure water storage was installed. A small once-through boiler was installed. ICP emission spectrophotometer was installed. The employees went on a company trip to Macau.
2017	The air-conditioner in the easter building was renewed. The container washing factory (washing and reusing facility for plastic containers) was renewed. Automatic warehouse rack master was renewed. Food Additive (incl. Sodium Hypochlorite, Sodium Hydroxide and Hydrochloric Acid) and Industrial chemicals (incl. Sulfuric Acid and Nitric Acid) acquired Halal Certification. Utility core pipe laying construction (the 3rd and the 4th) was finished. (All the constructions were completed.
2018	Scaling system of 1m³ containers and drums was intensified. (changed from flowmeter to weight scale) Groundwater tank was renewed. Reagent and Pharmaceutical products such as Sodium Sulfate, Urea and so on acquired Halal Certification. Upgraded to ISO 9001:2015 and ISO 14001:2015.
2019	We reached the 90th anniversary of the establishment; the promotional movie was released and a commemoration ceremony was held. All the computers have been renewed to Windows 10. The computer system was innovated and the "Expert Lims" was installed as quality management system. The employees went on a company trip either to Taiwan or Ishigaki island of their choice.
2020	A Sodium Sulfate manufacturing plant was newly established. We have been responding to the COVID-19 epidemic. The plant for alcohol-based products was enhanced.