Japan’s JSR reportedly plans to build its first semiconductor-materials production facility in Taiwan to supply photoresist to Taiwan Semiconductor Manufacturing Co. (TSMC).
JSR announced on April 10, 2026, that it had established JSR Micro Advanced Manufacturing Taiwan Co., Ltd. with LCY Chemical Corp. and Wah Lee Industrial Corp. JSR said the joint venture would serve as a manufacturing base for advanced electronic materials in Taiwan and develop a stable supply system for the advanced semiconductor market.
LCY Chemical also announced the venture and its partners, describing the same manufacturing and supply objectives.
Earlier expansion plans for EUV materials
JSR has separately announced plans to expand photoresist manufacturing in South Korea. In August 2024, the company said it would build a plant at its subsidiary JSR Micro Korea to carry out the final production process for metal oxide resist (MOR), a photoresist for extreme ultraviolet (EUV) lithography.
JSR said major customers in Korea were considering adopting MOR and that the investment would provide local quality assurance and manufacturing capacity. The announcement forecast a 2026 start for operations.
The company’s MOR business includes Inpria, the U.S. photoresist developer whose acquisition JSR completed on October 29, 2021. In August 2022, JSR announced that it was accelerating co-development with SK hynix to apply Inpria’s EUV metal oxide resist to advanced DRAM manufacturing.
TSMC’s lithography research
TSMC’s 2024 annual report described work to improve EUV scanner efficiency, reduce material defects and improve planarization in support of its A16 and A14 processes. The company also outlined research into new materials and identified high numerical aperture EUV as a future direction for its lithography development.
