JSR to Build First Taiwan Photoresist Plant to Co-Develop Advanced Resists with TSMC — Multi-Million Dollar Plant Could Come Online as Early as 2028

Why It Matters

By embedding engineers next to TSMC, JSR secures a faster innovation loop for cutting‑edge lithography, strengthening its foothold in the high‑value EUV segment and countering rising competition from Japanese and Chinese rivals.

Key Takeaways

• JSR invests tens of millions to open Taiwan plant by 2028
• Plant will co‑develop advanced photoresists directly with TSMC
• Moves JSR closer to rivals TOK and Shin‑Etsu with local production
• Supports future EUV and high‑NA EUV nodes down to 2 nm
• JSR also expands metal‑oxide resist output in South Korea for Samsung

Pulse Analysis

Japan’s JSR is accelerating its presence in the heart of the semiconductor supply chain by establishing a dedicated photoresist fab in Taiwan. The island hosts the world’s leading foundry, TSMC, whose aggressive roadmap to 2 nm and beyond demands ever‑more precise lithography chemicals. By locating production and engineering teams side‑by‑side with TSMC, JSR can shorten the iterative loop that currently forces weeks‑long sample shipments from Japan, the U.S., and Europe, giving it a competitive edge over rivals that already enjoy local proximity.

The strategic timing aligns with JSR’s broader push into next‑generation materials. While the Taiwan plant focuses on conventional chemically amplified resists, the company is simultaneously scaling a metal‑oxide resist (MOR) line in South Korea for Samsung and SK Hynix. MOR technology, which absorbs EUV photons more efficiently than traditional resists, is critical for high‑NA EUV tools that will define the sub‑2 nm era. JSR’s acquisition of Inpria in 2021 and its ongoing tin‑oxide formulation work signal a clear intent to dominate the emerging EUV niche, a segment where Japanese firms currently hold roughly 80% of market share.

For the industry, JSR’s dual‑track expansion reduces supply‑chain risk and deepens co‑development ties with the two biggest foundries. TSMC’s customers—ranging from Apple to Nvidia—stand to benefit from faster resist qualification cycles and more reliable access to cutting‑edge chemistries. At the same time, the move pressures competitors, including Chinese entrants still lagging at ArF and higher wavelengths, to accelerate their own local capabilities. In a market where lithography margins are razor‑thin, JSR’s investment underscores how proximity and material innovation are becoming decisive factors for winning the next wave of semiconductor contracts.