Brazil · Critical Minerals · Rare Earths · Mining · Processing · Supply Chain
Brazil’s Critical Minerals & Rare Earths: Projects, Processing and Supply Chains
Brazil’s rare-earth story is moving beyond reserve size. Serra Verde is producing in Goiás, Carina and Caldeira have reached advanced feasibility stages, Colossus remains an exploration-stage project, and federal policy is explicitly pushing toward more domestic processing and value creation. The strategic question is now whether Brazil can convert its project pipeline into a broader mining, separation and industrial supply chain.
Brazil is no longer only a rare-earth resource story. It is becoming a project-development and supply-chain story.
The country already has commercial rare-earth production at Serra Verde’s Pela Ema operation in Goiás. Behind it is a second group of projects at different development stages: Aclara’s Carina project has a 2026 feasibility study and a 170.8 Mt Proven & Probable Reserve, Meteoric’s Caldeira project published a definitive feasibility study in July 2026 backed by a 151 Mt Probable Ore Reserve, and Viridis is advancing Colossus from its 2025 PFS through permitting, demonstration processing, infrastructure execution and further feasibility work.
At the same time, Brazil’s policy framework is shifting toward domestic value creation. The PNM 2050 treats critical and strategic minerals as a long-term industrial priority, while the BNDES/Finep strategic-minerals program selected 56 business plans representing an estimated R$45.8 billion of investment, including ten rare-earth plans.
The central commercial issue is therefore not simply how much rare-earth material Brazil has. It is which projects will be financed and built, where processing and separation will occur, which supplier categories will be needed, and how much of the value chain can remain in Brazil rather than moving abroad after the mine gate.
For broader context, see Econosur’s six-project rare-earth pipeline, Serra Verde company insight, Meteoric / Caldeira analysis, Aclara / Carina analysis, Viridis Mining company insight and Brazil market profile.
Terminology matters:
Rare earths and critical minerals are not synonyms. Rare earths are a family of 17 elements. “Critical” and “strategic” are economic and policy classifications that reflect supply risk, industrial importance and national priorities. Brazil’s critical-minerals agenda includes rare earths, but also minerals such as lithium, nickel, graphite, copper and others.
Reserve figures also depend on the reporting framework. This page uses ANM’s 2024-basis figure of 11.4 million tonnes for consistency with the Brazilian official source; international estimates such as USGS figures use a different reserve basis and should not be mixed without explanation.
Why Brazil matters now
Brazil has long been described as a future alternative source of critical minerals. In 2026, that description is becoming less abstract. The country now combines an operating rare-earth producer, several large development projects, a federal mining strategy that explicitly emphasizes critical and strategic minerals, and financing programs designed to move projects beyond extraction into transformation and higher-value production.
The global timing matters. The International Energy Agency estimates that China accounted for 60% of mined magnet rare earths in 2024, 91% of refined output and 94% of sintered permanent-magnet production. That concentration means a mine outside China does not automatically create an independent supply chain. The decisive bottlenecks appear later: separation into individual oxides, metallisation, alloying and magnet manufacturing.
The 2025 and 2026 cycle of export controls made this concentration commercially visible. In June 2026, China placed USA Rare Earth, MP Materials and other U.S. entities under new dual-use export restrictions. Two months earlier, USA Rare Earth had agreed to acquire Serra Verde. The connection illustrates why Brazilian production is now being evaluated not only as a mining asset, but as part of competing international supply-chain strategies.
Brazil’s strategic opportunity is no longer simply the size of its rare-earth resource base. The question is whether an emerging mine pipeline can be converted into processing, separation and industrial supply chains that reduce dependence on China.
From mineral policy to an investment pipeline
Brazil’s PNM 2050 gives critical and strategic minerals a central role in long-term mineral policy. The plan does not frame success only as extracting more tonnage. It links mineral development with geological knowledge, supply security, competitiveness and stronger domestic value chains.
One measurable target is the plan’s scenario for Brazil’s average share of global production of selected critical and strategic minerals. The indicator rises from 8.3% on the current basis to 12.2% by 2050. The exact share is less important than the direction of policy: Brazil is trying to use its geology as the base for a larger industrial position rather than relying indefinitely on traditional bulk-mineral exports.
The BNDES/Finep strategic-minerals program provides a second signal. In June 2025, 56 business plans advanced to the support-planning stage, representing an estimated R$45.8 billion. Ten of those selected plans were related to rare earths, alongside lithium, graphite, copper, silicon and other strategic materials.
The project pipeline is broader than the mines visible in current production statistics.
For suppliers and industrial partners, the relevant market includes feasibility work, pilot and demonstration processing, water and residue systems, power supply, construction, laboratories, automation, reagents, separation technology and financing-linked technical requirements before a project reaches commercial output.
A four-project maturity ladder
The most useful way to read Brazil’s rare-earth sector is not as a single market, but as a project ladder. Each project sits at a different stage and therefore creates a different type of commercial demand.
| Project | Location | Current stage | Strategic relevance | Commercial question |
|---|---|---|---|---|
| Serra Verde / Pela Ema | Goiás | Commercial production / Phase I ramp-up | Operating MREC producer with a 25-year mine life, ~6,400 t/y Phase I TREO target and a U.S.-linked downstream platform. | Which optimization, expansion and supplier packages emerge as Pela Ema ramps and the downstream route through Wheat Ridge, Carester, metals and magnets develops? |
| Aclara / Carina | Nova Roma, Goiás | FS completed / permitting | 170.8 Mt Proven & Probable Reserve, 18-year mine life and a defined Brazil-to-U.S. downstream strategy through Project Dynamo. | Which early-works, construction and supplier packages become executable as licensing and detailed engineering advance? |
| Meteoric / Caldeira | Minas Gerais | DFS completed / licensing & financing | 151 Mt Probable Ore Reserve, US$498m initial capex and an advanced project case with multiple possible downstream routes. | When do the Installation Licence, binding offtake, financing and FID convert Caldeira into a construction procurement program? |
| Viridis / Colossus | Minas Gerais | PFS completed / development | 200.6 Mt Probable Ore Reserve, demonstration processing and the first binding infrastructure execution package, while DFS and Installation Licence remain key gates. | Which long-lead equipment, EPCM and infrastructure packages move before FID, and how will Solvay / Viridion shape the final downstream route? |
Serra Verde: the operating anchor becomes a geopolitical asset
Serra Verde’s Pela Ema operation is the most important anchor because it has already crossed the line from project development into production. The operation in Goiás entered production in 2024 and produces mixed rare-earth carbonate from ionic-clay material. That gives Brazil something many prospective rare-earth jurisdictions still lack: a commercial operating reference.
In April 2026, USA Rare Earth announced a definitive agreement to acquire Serra Verde for an implied equity value of approximately US$2.8 billion, consisting of US$300 million in cash and newly issued shares. As of August 20, 2026, closing had not yet been publicly confirmed; USA Rare Earth said it anticipated completion by the end of August.
The transaction is strategically important because it extends beyond ownership of a mine. Serra Verde has a 15-year agreement covering 100% of Phase 1 production of Nd, Pr, Dy and Tb through a special-purpose vehicle backed by U.S. government parties and private capital, with defined price floors. Pela Ema’s current operations guidance points to approximately 6,400 tonnes of rare-earth oxides per year by end-2027 over a 25-year mine life. USA Rare Earth is testing Serra Verde MREC at Wheat Ridge in Colorado and in July signed definitive agreements for an approximately 13.6% strategic stake in Carester, whose Caremag facility in France is expected to have access to Serra Verde feedstock.
That does not mean the entire chain will be located in Brazil. It means Brazilian upstream production is already being integrated into a geopolitical and industrial system designed to reduce exposure to China. For Brazilian industrial policy, the next question is how much of the intermediate and downstream value can also be retained domestically.
Read the full Econosur Serra Verde company analysis.
Carina, Caldeira and Colossus: the next development wave
Carina: a feasibility-stage project with a defined execution case
Aclara filed the feasibility study for its Carina project in April 2026. The study defines a 170.8 Mt Proven & Probable Reserve at 1,745 ppm TREO, an 18-year mine life and average annual production of 4,378 tonnes of rare-earth oxides. It reports total construction capex of approximately US$780.9 million, a post-tax NPV8 of about US$1.66 billion, a 26.9% IRR and a 2.9-year payback period.
Aclara’s schedule targets commissioning in the first half of 2028 and first production in the second half of that year. The company reports that the EIA was received in June 2026, but that should not be treated as proof that the Installation Licence or full construction authorization has been granted. Econosur therefore treats early works as a project target rather than confirmed construction unless separately verified. Downstream, Carina is the Brazilian upstream component of Aclara’s wider platform: MREC from Brazil is intended to feed a multi-feed separation route centered on Project Dynamo in Louisiana, followed by metals, alloys and potential magnet-chain integration.
Read the full Econosur Aclara Resources / Carina analysis.
Caldeira: DFS stage and a possible Brazil–Korea route
Meteoric published the Caldeira definitive feasibility study on July 31, 2026. The DFS is based on a 151 Mt Probable Ore Reserve at 3,524 ppm TREO, a 6.0 Mtpa processing concept and initial capex of approximately US$498 million. Meteoric reports average annual production of 3,862 tonnes NdPr and 127 tonnes DyTb, while its wider mineral resource totals roughly 1.6 billion tonnes.
The commercial significance extends beyond resource size. Meteoric has a Preliminary Licence, while the Installation Licence was still expected in Q4 2026 under the DFS schedule. FID therefore remains dependent on licensing and financing. POSCO International, Neo Performance Materials and Ucore provide possible downstream or financing routes, but the disclosed arrangements remain non-binding. Meteoric is also studying Brazilian MREC separation, so the final location of downstream processing is still commercially open.
Read the full Econosur Meteoric Resources / Caldeira analysis.
Colossus: advanced studies, but still not a sanctioned mine
Viridis Mining’s Colossus project in Minas Gerais has moved beyond a simple exploration framing. The 2025 PFS models a 20-year mine plan and Viridis reports a 200.6 Mt Probable Ore Reserve. The project remains pre-production, however: as of August 20, 2026, Econosur had not identified a published DFS, and the Installation Licence remained a key construction gate.
Execution is already becoming visible before FID. Viridis reported steady-state continuous production at its Poços de Caldas demonstration plant, with July averages of approximately 79% MREO recovery and 64% TREO recovery, and sent MREC samples to Solvay in La Rochelle for product qualification. A binding DME package covers a 3.2 km, 138 kV connection with 27 MW initial allocation and infrastructure designed for up to 90 MVA. The Solvay relationship itself remained non-binding as of August 20, while Viridion represents a longer-term Brazilian downstream route.
Read the full Econosur Viridis Mining / Colossus analysis.
The strategic bottleneck is downstream of the mine
The global rare-earth market is often discussed in terms of reserves and mine production. That misses the hardest part of the supply chain. Rare-earth ores or ionic-clay feed must be converted into usable products through a sequence of beneficiation, chemical processing, separation, refining, metallisation, alloying and magnet manufacturing.
The IEA estimates that even after announced projects are included, diversified non-China capacity in 2035 would cover only about 50% of expected ex-China mining demand, 25% of refining demand and well below 20% of magnet demand. Meeting projected ex-China demand would require roughly doubling mining capacity, quadrupling refining capacity and increasing magnet production sixfold, with around US$60 billion of investment over the next decade.
This is the part of the global equation that gives Brazil a second opportunity beyond mining. The four projects already illustrate different routes: Serra Verde is increasingly connected to U.S. and European processing optionality through Wheat Ridge and Carester; Carina points toward Louisiana separation; Caldeira is evaluating Brazilian separation while pursuing international commercial routes; and Colossus combines Solvay product qualification with the longer-term Viridion concept in Brazil. The economic question is therefore not only whether Brazil can produce more feed, but which separation and downstream stages are actually financed and built inside the country.
Supplier-market signal:
The IEA notes that rare-earth diversification is constrained not only by mines and capital but also by specialized machinery, equipment, process knowledge and long lead times. That creates an industrial supplier question around separation cells, hydrometallurgy, metallisation, magnet equipment, water systems, process control and technical services—not just around excavators and mine trucks.
Where supplier demand can emerge
Rare-earth projects create different supplier requirements as they move from exploration and studies into construction, commissioning and downstream integration. The timing is project-specific, but the opportunity can be read in layers.
| Development layer | Potential supplier categories | What must be verified |
|---|---|---|
| Mine & early works | Drilling, earthmoving, civil works, roads, power, water, laboratories, geotechnical services, environmental monitoring, camp and site logistics. | Project schedule, contractor structure, permitting, procurement packages and local sourcing requirements. |
| Process plant | Leaching systems, pumps, filtration, tanks, reagents, materials handling, residue management, water treatment, automation, instrumentation and process engineering. | Final flowsheet, equipment specifications, technology ownership, EPC model and vendor qualification. |
| Separation & refining | Solvent-extraction systems, ion exchange, chemical handling, analytical systems, high-purity processing, specialist materials, engineering and commissioning. | Whether separation is built in Brazil, located overseas or split between multiple partners and facilities. |
| Metals, alloys & magnets | Electrolysis, metallisation, alloy production, strip casting, powder processing, magnet pressing, sintering, testing and recycling technology. | Downstream investment decisions, customer commitments, intellectual property, scale and access to specialized equipment. |
International suppliers therefore need more than a list of mines. They need to know which project is actually moving, which part of the value chain is being localized, who controls procurement, whether equipment is specified by the owner or an EPC contractor, which Brazilian suppliers are already qualified, and how financing or offtake agreements affect technology choices.
What to watch next:
The most commercially relevant signals are closing of the Serra Verde transaction and the ramp-up of Pela Ema; Carina’s Installation Licence, detailed engineering and evidence of actual early works; Caldeira’s Installation Licence, binding offtake, financing and FID; Colossus DFS publication, Installation Licence, EPCM and long-lead equipment awards, and any binding Solvay agreement; conversion of BNDES/Finep plans into financed projects; and evidence that separation or later-stage processing capacity is becoming a funded physical asset inside Brazil.
Three business questions that require deeper research
Public sources establish project stages, strategic policy and announced partnerships. They do not show the complete commercial map needed by an equipment supplier, processor, engineering company or industrial investor. Three questions matter most.
Which Brazilian rare-earth projects are likely to convert studies and permits into procurement packages during the next 24–36 months, and who will control those purchasing decisions?
Answering this requires tracking financing, permits, early works, EPC structures, owner procurement, contractor appointments, tender timing and project-specific technical packages rather than relying on headline project values.
Which separation, refining and metallisation steps are realistically likely to be built in Brazil, and which will continue to depend on processing capacity in the United States, Europe or Asia?
This requires mapping planned facilities, technology owners, utilities, reagents, technical capabilities, financing, offtake conditions, customer specifications and the economics of transporting intermediate products between stages.
Where can an international equipment or service supplier enter the project chain, and which local contractors, qualification requirements and incumbent relationships determine whether it can actually win work?
The answer requires supplier and contractor mapping, interviews, procurement checks, local capability assessment, technical qualification research and verification of which packages are open to direct international supply versus Brazilian integration.
Public sources show the direction of Brazil’s rare-earth build-out, but not the full commercial map.
Company studies and government sources can show reserves, production cases, policy, finance programs and project milestones. They do not provide a complete supplier list, procurement calendar, contractor shortlist, equipment qualification path, local-versus-import sourcing structure, processing-location decision or evidence that every announced partnership will become a funded plant.
Those gaps are where project verification, supplier interviews, contractor mapping, procurement checks and local market research become necessary.
Research Services for Brazil’s Critical Minerals & Rare Earths
Econosur can structure custom research around a specific project, supplier category, processing technology, company or procurement question. Typical assignments include:
This analysis combines Brazilian government and development-bank sources, company and securities disclosures, project studies and IEA supply-chain analysis. Project schedules, transaction closings, permitting, financing and downstream plans can change as projects advance.
- Agência Nacional de Mineração — Sumário Mineral Brasileiro 2025: Brazilian rare-earth reserve and production context.
- Ministry of Mines and Energy — PNM 2050: long-term Brazilian mineral policy and the role of critical and strategic minerals.
- MME, July 2, 2026 — launch of PNM 2050 and emphasis on domestic value creation and critical minerals.
- BNDES/Finep, June 12, 2025 — 56 selected strategic-mineral business plans totaling an estimated R$45.8 billion, including ten rare-earth plans.
- International Energy Agency, Rare Earth Elements, 2026 — mining, refining and magnet concentration, diversified-capacity gaps and investment requirements.
- USA Rare Earth / SEC, April 20, 2026 — definitive agreement to acquire Serra Verde, transaction consideration, expected closing and 15-year offtake structure.
- Serra Verde, April 20, 2026 — agreed combination with USA Rare Earth and price-floor offtake for magnetic rare earths.
- USA Rare Earth, August 10, 2026 — current Serra Verde combination timing and Wheat Ridge processing work.
- USA Rare Earth, July 23, 2026 — definitive Carester investment framework and access to Serra Verde feedstock.
- Reuters, June 22, 2026 — Chinese export controls targeting USA Rare Earth, MP Materials and other U.S. entities.
- Aclara Resources — current Carina project status, 2026 FS metrics, reserve, EIA status and 2028 operating target.
- Meteoric Resources, July 31, 2026 — Caldeira DFS, 151 Mt reserve, US$498m capex, licensing and financing path.
- Viridis Mining — Colossus project location, ionic-adsorption-clay geology and project overview.
- Viridis, July 23, 2026 — continuous demonstration-plant production, recovery performance and Solvay qualification.
- Viridis, June 4, 2026 — binding DME transmission package and long-lead electrical procurement.
- Viridis, July 24, 2026 — quarterly update covering DFS target, Installation Licence, Solvay and execution milestones.
FAQ
Are rare earths the same as critical minerals?
No. Rare earths are a group of 17 elements. Critical or strategic minerals are policy and economic classifications based on supply risk, economic importance and strategic use. Rare earths are part of Brazil’s critical-minerals discussion, but not every critical mineral is a rare earth.
Does Brazil already produce rare earths commercially?
Yes. Serra Verde’s Pela Ema operation in Goiás entered production in 2024 and produces mixed rare-earth carbonate. Other major Brazilian projects remain at study, permitting or development stages.
Which Brazilian rare-earth projects matter most in the current pipeline?
Serra Verde is the operating anchor. Aclara’s Carina project has a 2026 feasibility study and a 170.8 Mt Proven & Probable Reserve. Meteoric’s Caldeira project has a July 2026 DFS and a 151 Mt Probable Ore Reserve. Viridis is advancing Colossus from its 2025 PFS through permitting, demonstration processing, infrastructure execution and further feasibility work.
Why is processing more important than reserve size alone?
Because mine output must pass through separation, refining, metallisation, alloying and magnet manufacturing before it reaches many high-value applications. These downstream stages are significantly more concentrated than mining.
What is Brazil trying to achieve under PNM 2050?
PNM 2050 seeks to strengthen Brazil’s role in critical and strategic minerals while adding more value domestically. Its scenario raises Brazil’s average share of global production of selected critical and strategic minerals from 8.3% to 12.2% by 2050.
What should international suppliers verify before committing resources?
They should verify project maturity, permits, financing, procurement timing, EPC and contractor structures, technical specifications, local supplier capacity, processing routes, infrastructure requirements and whether announced downstream plans are becoming funded physical projects.
