The Caustic Soda Market size is expected to reach USD 49.11 Billion in 2034 from USD 35.32 Billion (2025) growing at a CAGR of 3.73% during 2026-2034. The caustic soda market is expected to witness substantial growth, driven by its extensive applications in various industries, including chemicals, textiles, and food processing. Caustic soda, also known as sodium hydroxide, is a key raw material used in the production of a wide range of products, such as soaps, detergents, and paper.