Company History
| 1979 March Company established with capital of 300 million JPY.開く |
| 1979 June Construction begins on a factory in Kambara, Shizuoka City, Shizuoka Prefecture.開く |
| 1980 January Production plant No.1 established開く |
| 1980 September Production plant No.2 established開く |
1980 October Increased capital to 600 million JPY |
| 1981 February Production plant No.3 established開く |
| 1983 Tokyo office opened.開く |
| 1984 March Production plant No.4 established開く |
| 1985 March Production plant No.5 established開く |
1985 March Increased Capital to 780 million JPY |
| 1990 October Production plant No.6 established. Production of Xylene derivatives was expanded.開く |
1996 February Achieved ISO 9002 certification |
| 1996 November Production plant No.7 established開く |
2002 January Achieved ISO 14001 certification |
2003 February Achieved ISO 9001 certification |
2010 June Production plant No.7 capacity expanded |
2015 March Production plant No.7 capacity expanded |
| 2016 November Iharanikkei Chemical (Thailand) Co., Ltd. established in Thailand開く |
| 2018 September Production plant No.1 of Iharanikkei Chemical (Thailand) Co., Ltd. established開く |
| 2020 December Production plant No.2 of Iharanikkei Chemical (Thailand) Co., Ltd. established開く |
