Solvay to More Than Double Taiwan Semiconductor-Grade Peroxide Capacity by End-2026

Solvay is expanding ultra-pure, electronic-grade hydrogen peroxide as a semiconductor-materials growth business. Its central move is an expansion at Shinsol Advanced Chemicals in Tainan, Taiwan, a joint venture in which Solvay holds 51%. The project is intended to supply chipmakers with a locally produced wet chemical used in wafer-processing steps. 117

Taiwan capacity: more than 70,000 tonnes a year by end-2026

By the end of 2026, Solvay expects the Tainan site’s annual electronic-grade hydrogen peroxide capacity to rise from 35,000 tonnes to more than 70,000 tonnes—more than doubling the facility’s capacity. The 35,000-tonne baseline was the capacity of the site launched in 2023. 18

This is a capacity expansion rather than a disclosed forecast of actual annual production or sales. The distinction matters: nameplate capacity indicates what a plant can produce under defined operating conditions, not necessarily how much it will produce in a given year.

Why ultra-pure peroxide is important to chip production

Electronic-grade hydrogen peroxide is used to clean semiconductor wafers and in other critical wet-processing applications, including wet etching. For advanced chips, microscopic contaminants can affect manufacturing quality and device performance, making ultra-high purity a key requirement. 1617

Solvay links the Taiwan investment to rising semiconductor demand, including demand associated with AI-driven expansion of advanced-node chip fabrication. 1

A wider electronics-peroxide expansion strategy

Taiwan is one part of a broader manufacturing and market-development plan:

• China: Solvay officially opened an expansion at its Zhenjiang facility in 2025 that doubled annual production capacity for electronic-grade hydrogen peroxide. 9
• Germany: The company has said it is investing in electronic-grade peroxide capacity in Germany. 1
• United States: Solvay has said it is preparing to pursue U.S. opportunities. It previously announced plans for an electronic-grade hydrogen peroxide facility in Casa Grande, Arizona, to serve semiconductor manufacturing. 1

The commercial objective is substantial. Solvay aims to at least triple the contribution of its electronics-peroxide business within five to seven years. Electronics-grade products represented 15% of the company’s peroxide revenue in 2025, according to Reuters. 1

Market growth is projected to outpace the overall peroxide market

The growth case rests on the higher-value, high-purity segment rather than the broader hydrogen peroxide market. Mordor Intelligence projects high-purity grades to grow at a 5.31% compound annual rate through 2031, compared with 3.96% for the overall hydrogen peroxide market over 2026–2031. Its forecast identifies expansion in advanced semiconductor fabrication as a growth driver.

Forecasts are estimates, not guarantees. Still, the gap illustrates why suppliers such as Solvay are investing in local, high-purity capacity near semiconductor manufacturing hubs: electronic-grade peroxide is a specialized input whose demand can grow faster than commodity peroxide applications.

What the plan means

Solvay’s strategy is to build regional supply capacity for a highly purity-sensitive semiconductor chemical. The immediate milestone is clear: expand the Tainan joint venture beyond 70,000 tonnes of annual capacity by the end of 2026. Longer term, the company is pairing that expansion with Chinese capacity, German investment, and U.S. market plans in an effort to make electronics-grade peroxide a much larger share of its peroxide business. 19