Photomasks & Mask Blanks companies

Companies

• HOYA — Dominant maker of EUV photomask blanks and substrates. leader · TSE:7741 · $6.0B rev · Japan
• Mitsui Chemicals, Inc. — First commercial EUV pellicle manufacturer (ASML license); developing CNT pellicles for High-NA EUV. leader · TSE:4183 · $10.5B rev · Japan
• Photronics — Largest merchant photomask manufacturer. leader · NASDAQ:PLAB · $849M rev · United States
• Dai Nippon Printing — Top-tier photomask producer alongside its printing businesses. major · TSE:7912 · $9.5B rev · Japan
• TOPPAN Holdings — Major merchant photomask maker within diversified printing group. major · TSE:7911 · $504M rev · Japan
• AGC Inc. — Glass and chemicals maker; leading EUV photomask blanks and fluorinated gases. major · TSE:5201 · $4.1B rev · Japan
• Ohara Inc. — Japanese optical and electronic glass maker; supplies low-expansion glass-ceramics and quartz glass for semiconductor exposure equipment and photomask substrates. major · TSE:5218 · $182M rev · Japan
• SCHOTT AG — German specialty glass maker owned by the Carl Zeiss Foundation; supplies fused quartz for etch/epitaxy/diffusion equipment, photomask blank glass, and photostructurable FOTURAN glass wafers. major · Germany
• Taiwan Mask Corporation — Taiwanese merchant photomask maker. niche · TWSE:2338 · $189M rev · Taiwan
• SK Enpulse — SK affiliate; divested CMP pads to Hahn & Co. and blank photomasks to Fusion New Material in 2025; absorbed into parent SKC via merger effective 2025-12-23, ceasing as an operating company. niche · South Korea