| 1979年03月 |
IHARANIKKEI CHEMICAL INDUSTRY CO., LTD. was established with 300 million JPY in capital through joint investment by Nippon Light Metal Co.,Ltd. and KUMIAI CHEMICAL INDUSTRY CO., LTD. |
| 1979年06月 |
Construction begins on a factory in Kambara, Shizuoka City, Shizuoka Prefecture. Nippon Light Metal Co.,Ltd., located next door, manufactures and develops Caustic soda, Chlorine, and Hydrogen generated by chloro‐alkali electrolysis, as well as secondary products that can be made using these substances, and we are supplied with some of the Chlorine. |
| 1980年01月 |
Production plant No.1 established. 02_パラクロロベンジルクロリド : Production of p-Chlorobenzyl chloride was started as a raw material for the parent company, KUMIAI CHEMICAL INDUSTRY CO., LTD. |
| 1980年09月 |
Production plant No.2 established. Chlorotoluene : plant No.2 : Production of p-Chlorotoluene/o-Chlorotoluene from Toluene began. The completion of the dignified, towering two 50-meter distillation towers is a symbol of our company and marks the first step toward further expanding Chlorotoluene sales around the world. |
| 1980年10月 |
Increased capital to 600 million JPY. |
| 1981年02月 |
Production plant No.3 established. P-Chlorobenzotrichloride : plant No.3 : Production of P-Chlorobenzotrichloride was started. |
| 1983年 |
Tokyo office opened. |
| 1983年 |
New product research for the future was started. |
| 1984年03月 |
Production plant No.4 established. o-Toluoyl Chloride : plant No.4 : We started production of o-Toluoyl Chloride as a raw material for the parent company, KUMIAI CHEMICAL INDUSTRY CO., LTD. Currently, the plant is used for the production of other Acid chlorides. |
| 1985年03月 |
Production plant No.5 established. Chlorobenzaldehyde : plant No.5 : Amid expectations of increased demand for Chlorotoluene derivatives as agrochemical and pharmaceutical raw materials in Japan and abroad, we completed construction of a Hydrolysis facility and began production of p-Chlorobenzaldehyde and o-Chlorobenzaldehyde in order to establish a supply system for the global market. |
| 1985年03月 |
Increased Capital to 780 million JPY. |
| 1990年10月 |
Production plant No.6 established. Production of Xylene derivatives was expanded. 2,5-Dichloro-p-xylene : plant No.6 : The facility began operation as a means of entering the Xylene Chlorination field and of overcoming the situation where existing Chlorination facilities were no longer able to meet demand. It has Crystallization, Filtration, and Drying processes, and our first powder products were produced. Demand for our main product, α,α'-Dichloro-p-xylene, grew steadily, as did demand for the same Xylene derivative, Isophthaloyl chloride/Terephthaloyl chloride. |
| 1996年02月 |
Achieved ISO 9002 certification. |
| 1996年11月 |
Production plant No.7 established. The plant was constructed to meet the rapidly increasing demand for α,α'-dichloro-p-xylene for electrical materials. Since then, the plant has been in operation to produce raw materials for high-performance materials. : plant No.7 |
| 2002年01月 |
Achieved ISO 14001 certification. |
| 2003年02月 |
Achieved ISO 9001 certification. |
| 2010年06月 |
Production plant No.7 capacity expanded. |
| 2016年11月 |
Production plant No.7 capacity expanded |
| 2016年11月 |
In response to the expansion of the aramid fiber market, we established a Thai subsidiary, Iharanikkei Chemical (Thailand) Co., Ltd. to increase production of Isophthaloyl chloride/Terephthaloyl chloride, a monomer used to make aramid fibers. |
| 2018年09月 |
Production of Isophthaloyl chloride has started in Thailand. |
| 2020年12月 |
Production of Terephthaloyl chloride has started in Thailand. |
