As of 2025, Brazil had the world's largest reserves of niobium by a large margin, amounting to **Â million metric tons. In comparison, there were niobium reserves of roughly ** metric tons in the United States.
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US Geological Survey. (February 5, 2026). Reserves of niobium worldwide in 2025, by country (in 1,000 metric tons) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 26, 2026, from /statistics/1027668/niobium-reserves-worldwide-country/
US Geological Survey. "Reserves of niobium worldwide in 2025, by country (in 1,000 metric tons)." Chart. February 5, 2026. ÌÇÐÄÆƽâ°æ. Accessed July 26, 2026. /statistics/1027668/niobium-reserves-worldwide-country/
US Geological Survey. (2026). Reserves of niobium worldwide in 2025, by country (in 1,000 metric tons). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 26, 2026. /statistics/1027668/niobium-reserves-worldwide-country/
US Geological Survey. "Reserves of Niobium Worldwide in 2025, by Country (in 1,000 Metric Tons)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 5 Feb 2026, /statistics/1027668/niobium-reserves-worldwide-country/
US Geological Survey, Reserves of niobium worldwide in 2025, by country (in 1,000 metric tons) ÌÇÐÄÆƽâ°æ, /statistics/1027668/niobium-reserves-worldwide-country/ (last visited July 26, 2026)
Reserves of niobium worldwide in 2025, by country (in 1,000 metric tons) [Graph], US Geological Survey, February 5, 2026. [Online]. Available: /statistics/1027668/niobium-reserves-worldwide-country/
