HOUSTON — March 10, 2026 — The North America chlor-alkali market size was estimated at USD 16.83 billion in 2025 and is projected to reach USD 17.67 billion in 2026. The United States dominated the regional market with a 77.1% revenue share, while caustic soda accounted for 57.3% of total product demand.
Caustic soda flakes and pearls remain the backbone of US chemical manufacturing, consumed across alumina refining, pulp and paper, textiles, and water treatment. In 2026, alumina applications are expected to grow at a significant CAGR of 7.1%, driven by rising aluminum production and battery-grade material projects. Membrane cell technology, now dominant in the region, improved energy efficiency and output purity, supporting both large-scale lye consumers and solid-form users.
The Infrastructure Investment and Jobs Act and Inflation Reduction Act continued to funnel capital into water infrastructure and clean energy projects, sustaining long-term chlor-alkali consumption. As domestic capacity rationalization continues alongside steady demand, the market for both caustic soda flakes and pearls remains structurally firm.
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