History
| 1938 | Teikoku Kagaku Sangyo K.K. established at Itami City, Hyogo Prefecture |
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| 1939 | Commencement of production of enzyme products for dye desizing at the Amagasaki Factory of Nagase & Co., Ltd. (predecessor of Nagase Biochemicals, Ltd.) |
| 1947 | Nippon Kankoh-Shikiso Kenkyusho Co., Ltd. (predecessor of Okayama Plant; Functional Dyes Business)was established succeeding to the technology and business from Ogata Labolatory of RIKEN, National Research and Development Agency. |
| 1958 | Commencement of operations at the Amagasaki-Higashi Factory as the organic synthesis division of Nagase & Co., Ltd. (predecessor of Nagase Chemicals, Ltd.) |
| 1962 | Commencement of domestic production of epoxy formulated products at the Amagasaki-Higashi Factory of Nagase & Co., Ltd. (predecessor of Nagase-CIBA, Ltd.) |
| 1970 | The Amagasaki-higashi Factory of Nagase & Co., Ltd. was relocated to Tatsuno City, Hyogo Prefecture (predecessor to Nagase Chemicals, Ltd. and Nagase-CIBA, Ltd.) |
| Nagase-CIBA, Ltd. was separeted and became independent | |
| 1976 | The Amagasaki Factory of Nagase & Co., Ltd. (predecessor to Nagase Biochemicals, Ltd.) was relocated to Fukuchiyama City, Kyoto Prefecture |
| 1977 | Nagase Biochemicals, Ltd. was separated and became independent |
| 1980 | Nagase Chemicals, Ltd. was separated and became independent |
| 1987 | Nagase Electrochemicals, Ltd. was separated and became independent from Nagase Chemicals, Ltd. |
| Established Nagase Sanbio Co., Ltd. together with Nagase & Co., Ltd. | |
| 1988 | Commencement of operations at the Fujita Plant of Nippon Kankoh-Shikiso Kenkyusho (currently Okayama Plant; Functional Dyes Business) |
| 1991 | The new research building was constructed and shared by Nagase Chemicals, Ltd. and Nagase Electrochemicals, Ltd. |
| Commencement of operations at the Fukuchiyama Plant of Teikoku Kagaku Sangyo K.K.. | |
| 1999 | Nippon Kankoh-Shikiso Kenkyusho Co., Ltd was merged into Hayashibara Biochemical Labs., Inc.(predecessor Nagase Viita Co., Ltd.), with Hayashibara Biochemical Labs., Inc. as surviving entity. |
| 2000 | Nagase Electrochemicals, Ltd. was merged into Nagase Chemicals, Ltd., with Nagase Chemicals, Ltd. As surviving entity. |
| Nagase-CIBA, Ltd. became Nagase ChemteX Corporation, a wholy owned subsidiary of Nagase & Co., Ltd. | |
| 2001 | Newly established Nagase ChemteX Corporation through the merger of four companies (Nagase ChemteX, Nagase Chemicals, Nagase biochemicals and Teikoku kagaku Sangyo) |
| Established Nagase Finchem Singapore Pte. Ltd. together with Nagase & Co., Ltd. and Nagase Singapore(Pte) Ltd. | |
| 2002 | Established Nagase ChemteX (Wuxi) together with Nagase & Co., Ltd. |
| 2003 | Harima Plant Obtained ISO 9001 in combination with ISO 14001 certification |
| 2006 | Fukuchiyama Plant Obtained ISO 14001 certification |
| New clean room and roll coating equipments installed at Harima Plant for production of sheet encapsulant and Liquid Sealing Material (LSE) | |
| 2007 | New distillation recycling facilities were constructed at Harima Plant |
| 2008 | Established Sakai Plant and commencement of manufacturing and recycling chemicals for production of Liquid Crystal Display |
| Established "SN Tech" together with Sachem Asia Co., Ltd. and Nagase & Co., Ltd. as a joint company | |
| The research facility building was constructed at Harima Plant | |
| 2009 | Boiler fuel changed from heavy oil to LNG at Harima Plant |
| 2012 | New the microelectronics materials production building, equiped with clean room, was constructed at Harima Plant |
| Acquired all shares of EMS in the USA (Engineered Materials Systems Inc.) together with Nagase & Co., Ltd. and made it a subsidiary. | |
| OHSAS18001 certification registered at Harima Plant | |
| 2013 | A new R&D center "Applied Development Center" was established at Nagase ChemteX (Wuxi) Corporation |
| 2015 | Established a Joint Venture: Wuxi Chenghong Electronic Chemicals Co., LTD. in China with Nagase & Co., Ltd. |
| The Fukuchiyama No.2 Factory and the active pharmaceutical ingredient manufacturing business were transferred to Sankyo Kasei Co., Ltd. | |
| 2016 | Nagase FineChem SingaporePte. Ltd was transferred to KMG Chemicals, Inc. |
| 2017 | Acquired Shares of INKRON Ltd. with Nagase & Co., Ltd. and makes it a subsidiary |
| Engineered Materials Systems changes its name to Nagase ChemteX America LLC | |
| 2023 | Established Himeji Office |
| The Biochemical business and Fukuchiyama Plant were integrated into Nagase Viita Co., Ltd. (Formerly Hayashibara Co., Ltd.) | |
| Established NAGASE MIRAI Corporation, and it was certified as a special subsidiary in the same year | |
| 2024 | Changed the corporate logo and corporate color |
| 2025 | Sakai Plant closed. |
| Merged the Fujita Plant and Functional Dye business of Nagase Viita Co., Ltd., and continued operations as Okayama Plant | |
| Fukui Yamada Chemical Co., Ltd., the NAGASE Group company, became a subsidiary. |