TOKYO OHKA KOGYO CO., LTD. (TOK) provides chemical products, such as photoresist, and equipment for semiconductors and liquid crystal displays.

Corporate outline and business details are posted.
View the Corporate Presentation video in English, Chinese, Korean, and Japanese.

Our history of the development and progress of precision processing technologies based on photolithography.

Introduction of the board of directors, corporate auditors, and officers.

We have positioned the corporate governance as one of our most important management issues.

Introduction of subsidiaries in Japan and overseas.

Access map to offices in Japan can be seen.