Caustic Soda

Caustic soda (Sodium Hydroxide) pricing per metric ton (MT) varies significantly by form (liquid, flakes, pearls) and region, generally ranging from $300 to over $600/MT as of early 2026, with liquid lye (50%) often in the $360-$420 range, while flakes and pearls (99%) can cost $490-$510+ (FOB). Prices fluctuate due to energy costs, demand shifts (e.g., chlorine byproduct), global trade, and location.