Soda ash – also known as sodium carbonate – is an alkali chemical that is a white, water-soluble salt. In 2025, the United States had some billion metric tons of natural soda ash reserves from trona, nahcolite, and dawsonite deposits. The world's total reserves of natural soda ash amounted to approximately ** billion metric tons that year, making the United States the largest holder of soda ash reserves worldwide.
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US Geological Survey. (February 5, 2026). Leading countries based on reserves of soda ash worldwide in 2025 (in million metric tons) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 30, 2026, from /statistics/1074019/sodium-carbonate-reserves-worldwide-by-country/
US Geological Survey. "Leading countries based on reserves of soda ash worldwide in 2025 (in million metric tons)." Chart. February 5, 2026. ÌÇÐÄÆƽâ°æ. Accessed July 30, 2026. /statistics/1074019/sodium-carbonate-reserves-worldwide-by-country/
US Geological Survey. (2026). Leading countries based on reserves of soda ash worldwide in 2025 (in million metric tons). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 30, 2026. /statistics/1074019/sodium-carbonate-reserves-worldwide-by-country/
US Geological Survey. "Leading Countries Based on Reserves of Soda Ash Worldwide in 2025 (in Million Metric Tons)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 5 Feb 2026, /statistics/1074019/sodium-carbonate-reserves-worldwide-by-country/
US Geological Survey, Leading countries based on reserves of soda ash worldwide in 2025 (in million metric tons) ÌÇÐÄÆƽâ°æ, /statistics/1074019/sodium-carbonate-reserves-worldwide-by-country/ (last visited July 30, 2026)
Leading countries based on reserves of soda ash worldwide in 2025 (in million metric tons) [Graph], US Geological Survey, February 5, 2026. [Online]. Available: /statistics/1074019/sodium-carbonate-reserves-worldwide-by-country/
