rare-earth mine in the Western Hemisphere. Operated by Serra Verde, it
entered commercial production in early 2024, and its ramp is now
underwriting Brazil's credibility as a long-term supplier of the metals
the energy transition needs most.¹
granitic basement rocks has produced exactly the geological conditions
that favour ionic-adsorption-clay rare-earth enrichment.¹ The deposit
was identified and developed through exploration and drilling programmes
extending over several years before construction began.
total rare-earth content — which is modest by the standards of
carbonatite-hosted deposits — but the distribution of elements. Ionic
clays in this geological setting carry a meaningful share of the
high-value heavy rare earths, including dysprosium and terbium,
alongside the more common light rare earths. That mix matters because it
aligns with what the permanent-magnet industry for electric vehicles and
wind turbines actually needs.
methods used for bastnaesite or monazite. The rare earths are loosely
bound to clay minerals and can be released by leaching with a relatively
mild chemistry. There is no high-temperature cracking step, no
aggressive acid bake, and no sulphuric-acid roaster of the kind that
bastnaesite processing normally requires.
capacity are lower than for a conventional rare-earth project, and the
environmental footprint is smaller — with lower energy intensity, less
chemical consumption, and reduced thorium-uranium handling concerns. The
trade-off is that ionic clays typically have lower total rare-earth
content than carbonatite ores, so economics depend on scale and on
processing efficiency rather than on high grade.
approach that has been used for decades at ionic-clay operations in
southern China. The novelty at Pela Ema is less in the metallurgy and
more in the operational context: the first time the approach is being
deployed commercially outside the Chinese regulatory and technical
environment.
per year by the end of 2027, over a 25-year mine life.¹ The 2025 output
year — represents an early step toward that target.² At steady-state,
rare-earth mines in the world by tonnage, and one of the three or four
largest outside China.
The ramp is governed by both geological and operational factors.
confidence, processing throughput must scale, and the specific mix of
rare-earth oxides produced must be optimised for the premium-value
fraction. Reaching 6,500 tonnes is not a simple debottlenecking
exercise.
that Brazil has never produced at scale. Process metallurgists with
ionic-clay experience are rare outside of China, and Serra Verde has
combined expatriate expertise with training of Brazilian engineers. The
longer the operation runs, the more it compounds a national
human-capital base that will underpin Aclara, Meteoric and any future
show up in the production statistics.
The most visible external validation of Serra Verde came from the U.S.
intended to support upgrades at Pela Ema, cover operational expenses and
refinance existing shareholder debt.¹ It is one of the largest DFC
commitments to a Latin American mining project to date.
controls on rare-earth elements, tightened in April 2025 and expanded in
a single dominant source.³ Any producer at meaningful commercial scale
outside China is strategically valuable, and Serra Verde — which has
been operating under Brazilian federal permits and delivering
concentrate into the international market — fits that description.
The same logic is extending to other Brazilian rare-earth projects.
September 2025 for its Carina project, and the broader pattern of U.S.
federal financing for Brazilian critical-minerals projects appears
likely to continue through 2026.
rare-earth projects are following. Aclara's Carina project, targeting
commercial production in 2028, is working a similar ionic-clay deposit
in northern Goiás. Meteoric Resources' Caldeira project in Minas Gerais
is at the pre-feasibility study stage and is also clay-hosted. Together,
these three projects represent what may become a multi-project Brazilian
rare-earth cluster by the end of the decade.
project can justify a certain scale of roads, power and processing
facilities; three or four projects in adjacent states can share
infrastructure, reducing the per-project cost of market entry.
for the model.
in adjacent municipalities translate into tax revenue, local employment
and supplier contracts that give state governments a direct stake in the
success of the industry. That stake, in turn, tends to smooth the
regulatory and permitting path for subsequent projects — a dynamic that
worked for iron ore in Pará and Minas Gerais two decades ago and that
appears to be repeating for rare earths now.
schedule toward 6,500 tonnes per year by end-2027, and if the DFC
financing enables the processing and concentrate-quality upgrades the
company needs, the country's share of global rare-earth supply will
climb steadily through the remainder of the decade. The first
commercial scale; the next step is proving that the concept can be
replicated, and