TOKYO OHKA KOGYO CO., LTD. (hereinafter the “Company”) decided to construct a new manufacturing building in Koriyama Plant (Koriyama City, Fukushima Prefecture, Japan), one of our main production bases. The construction is scheduled to begin in July 2024, with operations scheduled to commence in the second half of 2026.

The Koriyama Plant manufactures various types of photoresists including EUV/ArF/ KrF photoresists for semiconductor manufacturing processes. As the semiconductor market is expected to grow over the medium- to long- term, we decided to construct a new manufacturing building in the Plant with the aim of further improving product quality and expanding supply capacity. It is planned to be the largest photoresist manufacturing facility in Japan. With the new manufacturing building designed to be a smart factory with automated and digitalized production lines, we aim to pursue a high level of safety and production efficiency and manufacture photoresists of the world’s highest quality.

We also built a new inspection building in the Koriyama Plant in July 2022, contributing to the improvement of product quality and inspection efficiency. For details, please refer to the press release “Notice Regarding Completion of New Inspection Building in Koriyama Plant” dated August 4, 2022 (Japanese version only).

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 manufacturing building in Koriyama Plant

Location:  1-23, Machiikedai, Koriyama City, Fukushima Prefecture, Japan 
Building area: 4,800㎡
Scheduled to begin construction:  July 2024
Scheduled to commence operations:  2nd half of 2026
Investment amount:  Over 20 billion yen (plan)

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.