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Tokuyama Announces Construction of Hantok Chemicals' New Pyeongtaek Plant
～ Expanding TMAH Production Capacity in South Korea ～
Tokuyama Corporation ("Tokuyama") hereby announces that Hantok Chemicals Co., Ltd. ("Hantok"), an equity-method affiliate of Tokuyama, held a groundbreaking ceremony today in Pyeongtaek, Republic of Korea, for its new Pyeongtaek Plant, which will be a new production facility for tetramethylammonium hydroxide (TMAH), a photoresist developer.
Hantok is a joint venture between Tokuyama and LOTTE Chemical Co., Ltd. and has manufactured and sold photoresist developer in Ulsan, Republic of Korea, since 1995. With demand for advanced semiconductors continuing to grow, demand for TMAH used in semiconductor manufacturing processes is also expected to increase further. Hantok aims to increase its current TMAH production capacity by 50% in the future. This expansion will reinforce its stable supply structure for customers and further strengthen its presence in the global market.
| [Company Overview] | |
| (1) Name | Hantok Chemicals Co., Ltd. |
| (2) Head Office | Seoul, Republic of Korea, |
| (3) Representatives | President and Representative Director: Hyo Taek An Vice President and Representative Director: Tetsuya Nakano |
| (4) Business Description | Manufacture and sales of photoresist developer |
| (5) Equity Ratio | Tokuyama Corporation: 50% LOTTE Chemical Co., Ltd.: 50% |
| [Overview of the New Plant] | |
| (1) Name | Hantok Chemicals Pyeongtaek Plant* |
| (2) Location | Pyeongtaek, Republic of Korea |
| (3) Construction Schedule | Commercial operations scheduled to commence in September 2027 |
| [Reference Information: TMAH] | |
| (1) Generic Name | Tetramethylammonium hydroxide |
| (2) Main Application | Positive-Type Photoresist Developer (photolithography process) |
Tokuyama Corporation
Corporate Communications & Investor Relations Dept.
TEL: +81-3-5207-2552