1923 Japan yangang nitrogenous fertilizer plant started commercial ammonia production for the first time.
1929 Japan cuprammonia silk fiber spun silk co., ltd was established.
1930 Japan Nitro Explosives Co., Ltd. was established.
193 1 Japan Copamide Fiber Co., Ltd. began to produce Copamide fiber.
Japan's Yengang Nitrogen Fertilizer Plant was closed and Yengang Ammonia Fiber Company was established, which was the date when Asahi Kasei was formally established.
1932 Japan Nitro Explosive Co., Ltd. started mass production.
1933 yangang ammonia fiber co., ltd. merged Japan cuprammonia fiber co., ltd. and Asahi glass fiber co., ltd. to form Asahi glass fiber co., ltd.
1943 Xu Tong spandex co., ltd and Japan nitro explosives co., ltd merged to form Japan nitro chemical co., ltd.
1946 changed its name to Asahi kasei industrial co., ltd. ..
1949 shares are listed in Tokyo, Osaka and Nagoya.
1952 and Dow Chemical jointly established Petrochemical Co., Ltd., and Kawasaki's factory began to use.
1957 Xu-Dao began to produce polystyrene.
1959 acrylic products started mass production (discontinued in March 2003).
1960 Xu-Dow will wrap plastic wrap (plastic wrap? ) introduced to the Japanese market.
1967 with the development of high pressure lightweight concrete (Hebel? ) board put into production, building materials business officially started.
The factory in 1972 waterway began to produce ethylene.
Residential construction business from architecture (Hebbel House? ) steel structure residential construction.
1974 With the establishment of Asahi Kasei Medical Devices Co., Ltd. (now Asahi Kasei Medical Devices), the medical device business officially started.
1980 with the establishment of miyazaki electronics co., ltd. (now Asahi kasei electronics), the electronic parts business of electronic equipment officially started. Hall sensor begins production.
1982 Xu-Dow merged into Asahi Kasei Industry.
1983 with the establishment of the joint venture company Xu Wei systems co., ltd, the semiconductor business officially started. With 1984 holding 0/00% shares of the company, the company was renamed Asahi Kasei Microsystems.
1992 Toyo Brewing Co., Ltd., a pharmaceutical manufacturer, joined the DPRK's daily chemical industry.
200 1 renamed Asahi kasei co., ltd.
In 2003, the company structure was transformed into a holding company, and its core business was divided into seven core operating companies.
In 2007, Asahi Kasei Life Products was merged into Asahi Kasei Chemical and changed into six core operating companies.