Brazil Critical Minerals: Niobium, REEs & the 2030 Plan

• Brazil critical minerals span niobium, rare earths, lithium and copper
• Niobium reserves exceed 90% of the world total at CBMM’s Araxá mine
• Rare earth reserves rank second globally behind China, per USGS data
• AmCham Brazil projects $21.3 billion in mineral investment through 2030
• USA Rare Earth’s $2.8 billion Serra Verde deal leads the sector
• Indigenous land overlaps affect up to 44% of exploration applications

Brazil holds one of the world’s most diversified critical minerals resource bases, anchored by a near-monopoly in niobium and the second-largest rare earth reserves on the planet. AmCham Brazil projects $21.3 billion in sector investment by 2030 as the country pushes to move beyond raw ore exports.

Brazil critical minerals reserves span niobium to copper

Niobium is the standout asset. Brazil holds over 90% of global reserves and production, according to the USGS Mineral Commodity Summaries 2026 and Brazil’s Serviço Geológico. Nearly all of it comes from CBMM’s operation at Araxá, Minas Gerais, feeding aerospace alloys, superconductors and defence applications with no comparable alternative supplier. Buyers tracking niobium pricing can follow CMN’s niobium price tracker for current benchmarks.

Rare earth reserves put Brazil second worldwide, behind only China, per USGS 2026 estimates. Deposits are concentrated in ionic clay formations across Goiás, Minas Gerais and Bahia — a different geology to China’s hard-rock sources, and one that has drawn Western capital into the state. Full detail on Brazil’s REE projects, including Aclara Resources’ (TSX: ARA) Carina deposit in Goiás, sits on CMN’s sister title, Rare Earth Mining’s Brazil guide.

Graphite reserves account for more than 22% of the global total, supplying EV battery anode demand. Sigma Lithium (Nasdaq: SGML) anchors the country’s “Lithium Valley” in the Jequitinhonha region of Minas Gerais, while copper has become the newest exploration frontier, drawing a large share of the country’s mineral exploration spending as Vale Base Metals expands its Carajás district position in Pará.

Key mining states behind Brazil critical minerals output

Mining rights sit with the federal National Mining Agency (ANM), which grants exploration and extraction licences nationally, while individual states handle local permitting and tax incentives. Four states carry most of the activity. Minas Gerais is the mature anchor, combining niobium, iron ore and the Lithium Valley lithium projects. Pará hosts the Carajás district, Brazil’s largest copper and nickel base, largely under Vale Base Metals.

Goiás has become the country’s rare earth and battery-metals frontier, home to Aclara’s Carina project and to Serra Verde, the only operating rare earth mine in the Western Hemisphere producing all four magnet elements — neodymium, praseodymium, dysprosium and terbium. Nasdaq-listed USA Rare Earth (Nasdaq: USAR) agreed in April 2026 to acquire Serra Verde for approximately $2.8 billion, the largest single critical minerals transaction in the country to date. Bahia is emerging separately as a vanadium, copper and REE supplier for grid storage.

Investment, processing and the push to 2030

Brazil has historically exported raw concentrate rather than refined product, ceding most processing margin to China. The National Development Bank (BNDES) is now funding domestic refining and magnet-production capacity, part of the broader $21.3 billion investment figure AmCham Brazil has attached to the sector through 2030. U.S. capital has moved alongside it: the Development Finance Corporation provided $565 million toward Serra Verde’s build-out, and Aclara secured a further $5 million in loan support, both aimed at diversifying magnet-metal supply away from China. Exporters and equipment suppliers eyeing the build-out can find further detail via the U.S. International Trade Administration’s Brazil critical minerals brief.

Copper and lithium sit alongside niobium and REEs as the near-term commercial focus. CMN’s copper price tracker and lithium price tracker carry monthly SMM-sourced benchmarks relevant to Brazilian supply flowing into global battery and grid markets.

Permitting risk and Indigenous land overlap

Less than 30% of Brazil’s territory is fully geologically mapped, leaving substantial resource upside alongside genuine permitting friction. Up to 44% of critical mineral exploration applications overlap or sit adjacent to protected Indigenous lands, according to AmCham Brazil data reported via Argus Media. That overlap is now a standing factor in project timelines across Goiás and Pará specifically, where much of the REE and copper growth is concentrated, and it sits alongside broader competition for capital and offtake between US and Chinese investors in the sector.