JSR, Tokyo Ohka Kogyo (TOK) and Shin-Etsu Chemical supply EUV photoresist to TSMC

JSR, TOK and Shin-Etsu Chemical together account for roughly 85% of global EUV photoresist production volume and are established suppliers to TSMC's advanced-node lithography process; TOK and Shin-Etsu operate production facilities in Taiwan with engineers co-located with TSMC process teams, and JSR is reportedly building its first Taiwan photoresist plant (announced May 2026) specifically to supply TSMC with advanced EUV photoresist, following a November 2025 joint TOK/JSR investment in next-generation photoresists for 2nm-and-below manufacturing.

Source: TrendForce / Tom's Hardware
Type: News report
Published: May 5, 2026
Confidence: 70/100
Filed under: Taiwan Semiconductor Manufacturing Company

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InsightNodes, "JSR, Tokyo Ohka Kogyo (TOK) and Shin-Etsu Chemical supply EUV photoresist to TSMC" (Taiwan Semiconductor Manufacturing Company). Source: TrendForce / Tom's Hardware, May 5, 2026, https://www.tomshardware.com/tech-industry/jsr-builds-first-taiwan-photoresist-plant-as-japanese-materials-makers-race-to-embed-next-to-tsmc. https://insightnodes.com/claims/e/tsmc-euv-photoresist-suppliers-2026 (accessed October 30, 2026).

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