TOKYO OHKA KOGYO CO., LTD. (hereinafter the “Company”) decided to open the “Aso Kumamoto Site” of Aso Plant as a new production base in Kikuchi City, Kumamoto Prefecture, Japan. A manufacturing plant of high-purity chemicals is currently under construction at the site, with operations scheduled to commence in the first half of 2025.

The Company opened the Aso Plant (Aso City, Kumamoto Prefecture, Japan) in 1984 and has been manufacturing high-purity chemicals. In 2022, We acquired new land for commercial use in Kikuchi City, Kumamoto Prefecture to open the Aso Kumamoto Site in response to the recent expansion of semiconductor production in Kyushu. For details on the acquisition of land for commercial use, please refer to the press release “Notice regarding Acquisition of Commercial Land in Kikuchi City, Kumamoto Prefecture” dated February 10, 2022 (Japanese version only).

Going forward, we aim to improve the quality of high-purity chemicals, expand our supply capacity and enhance user support in the Western Japan, including Kyushu, through the synergy between the Site and the Aso Plant.

In order to realize the vision set forth in TOK Vision 2030, the long-term vision announced in August 2020, TOK Group plans to make the largest-ever capital investments of more than 60 billion yen over the three-year period covered by TOK Medium-Term Plan 2024 released in February 2022. We will continue to make aggressive capital investments and strengthen our global supply chain to respond to the medium- to long-term growth of the semiconductor market.

1. Outline of the new Aso Kumamoto Site of Aso Plant

Location:  Kyokushikawabe, Kikuchi City, Kumamoto Prefecture, Japan (on the premises of Kikuchi Techno Park)
Site area:  128,773.74㎡
Scheduled to commence operations:  1st half of 2025
Investment amount:  Over 13 billion yen (plan)

Location for Aso Kumamoto Site of Aso Plant

2.   Future outlook

The impact of this project on the Company’s consolidated financial results for the fiscal year ending December 31, 2023 is insignificant and has already been reflected in the consolidated financial forecasts　announced on July 28, 2023.