| 1885 |
The founder of Taki Chemical, Kumejiro Taki, starts manufacturing bone meal as Japan's first man-made fertilizer. |
| 1890 |
Start of superphosphate production from bone meal. |
| 1893 |
Registration of the  (mythopoeic spades) as the company's trademark with the Ministry of Agriculture and Commerce. |
| 1898 |
Completion of plant for the production of superphosphate from phosphate rocks |
| 1903 |
Start of manufacture of the "Kokonoe Fertilizer" (Mixed Fertilizer) in commemoration of the dispatch of a special envoy to the company by the Emperor Meiji. |
| 1916 |
Start of manufacture of the "Shikishima Fertilizer" (Mixed Fertilizer) |
| 1918 |
Reorganization of the company into Taki Fertilizer Manufacturing Co., Ltd. (Capital: one million yen). |
| 1944 |
Joint establishment with Sumitomo Chemical Corporation of Sumitomo-Taki Chemical Co., Ltd. (now: Sumitomo Seika Chemicals Co., Ltd.) |
| 1947 |
The Emperor Showa honors the company with an official visit. |
| 1950 |
Start of manufacture of chemical fertilizers |
| 1959 |
Completion of plant for the exclusive production of organic compounds. |
| 1963 |
Completion of high-analysis mixed fertilizer plant |
| 1964 |
Completion of gypsum board plant |
| 1969 |
Completion of PAC plant at Head Factory |
| 1970 |
Completion of the Chiba PAC plant |
| 1971 |
Completion of aluminum phosphate plant |
| 1974 |
Change of company name to Taki Chemical Co., Ltd. |
| 1988 |
Completion of Shopping Center "Green Plaza Befu" |
| 1989 |
Completion of plant for the production of briquette fertilizers |
| 1994 |
Completion of plant for the production of granular fertilizers |
| 1996 |
Completion of the Kyushu PAC plant |
| 2000 |
Completion of new plant for the production of hyperpure metal oxides |
| 2001 |
Registration of Serunaegenki (Healthy Cell Seeding) as a microbial pesticide |
| 2004 |
Completion of the Medical Material Research Center |
| 2007 |
Completion of plant for the high purity basic aluminum chloride. Completion of large-scale sports shop and specialty store building in the shopping center. |
| 2008 |
Joint establishment with Sumitomo Chemical Corporation of T.S.Aguro Co.,Ltd. |
| 2017 |
Completion of plant for the production of biodegradable polymer for controlled-release pharmaceuticals |