TSMC's 3nm expansion drives a rush into chip-cleaning chemicals

Sep 03, 2026

Taiwan's chip boom is spilling into the chemicals that clean the wafers, and that is good news for suppliers betting on advanced manufacturing.

  • Belgian chemical maker Solvay is more than doubling its Taiwan output of ultra-pure hydrogen peroxide, to over 70,000 tonnes a year by the end of 2026.
  • The trigger is TSMC's April decision to build another 3nm plant at its Tainan mega-site.
  • Ultra-pure hydrogen peroxide is used to clean wafers, and the more advanced the chip, the less contamination the process can tolerate.
  • The expansion runs through Shinsol Advanced Chemicals in Tainan, a joint venture Solvay controls with a 51% stake.
  • Solvay wants its electronics-grade peroxide business, now a small slice of sales, to triple within five to seven years, and is also expanding in China, Germany, and eyeing the U.S.

Outlook: Asia stays the fastest-growing market for these chemicals, and two new advanced plants in Taiwan should soak up the added supply quickly.

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