The turbines in a wind farm, like this one in the Northeast region of Brazil, contain magnets made from rare earths in their generators. This makes rare earths, which Brazil has in abundance, indispensable for both decarbonized electricity generation and the development of electric motors in the automotive sector and others. Credit: Fotos Públicas
By Mario Osava
RIO DE JANEIRO, Aug 27 2025 – Brazil, which stands out for exporting basic products such as iron ore, oil, coffee, and soybeans, rather than industrialized goods with higher added value, now intends to make a shift regarding rare earths, a key component in new technologies that it has in abundance.
Brazil is the second country in reserves of this natural resource, estimated at 21 million tons, surpassed only by China, with 44 million tons, explained Julio Nery, director of Mining Affairs at the Brazilian Mining Institute (Ibram). Together, the two countries account for about two-thirds of the total.”The critical phase of processing which adds the most value is the separation of the rare earth elements, with high costs due to numerous and successive treatments, not so much because of the technology” –Fernando Landgraf.
But Brazil is only just beginning to exploit this wealth on a large scale, while China practically holds a monopoly on its refining, about 90% of the world total, to supply its own electronics industry, electric vehicles, wind turbines, and many other equipment, as well as the industry of almost the entire world.
Rare earths have become the new mining and technological fever, due to the accelerated growth in their demand and, now, due to the trade war unleashed by the United States under the presidency of Donald Trump.
China’s threat to condition the exports of its rare earth chemical elements forced Trump to backtrack on his escalation of additional tariffs against its biggest economic rival, which reached 145% in April, and to enter into negotiations that continue with the tariff reduced to 30%.
Rare earths get their name not because of their scarcity, as they exist in many places, but because of their physical properties, such as magnetism, which are indeed limited, explained Nery to IPS, by phone from Brasilia, about this sector comprised of 17 chemical elements that also have other unique properties such as electrochemical and luminescent ones.
Geopolitical disputes tend to accentuate a movement by many countries to reduce their dependence on China’s rare earths.
Launch of the MagBras project to develop the entire rare earth chain in Brazil, from mining to permanent magnets, key components of electric motors, wind turbines, and numerous electronic products, on July 14, 2025, at the laboratory and factory that will serve the project, near Belo Horizonte, the capital of the state of Minas Gerais. Credit: Sebastião Jacinto Junior / Fiemg
Adding value
In Brazil, an alliance of 38 companies, scientific institutions, and development foundations, driven by the Federation of Industries of the State of Minas Gerais (Fiemg), through its arm of the National Service for Industrial Training, aims to develop the entire rare earth chain, “from mining to the permanent magnet.”
That magnet, which contains four of the 17 rare earth chemical elements, is the derivative with the highest added value due to its now indispensable use in electric motors, cell phones, many electronic devices, wind turbines, and defense and space technologies.
This will be the focus of the project called MagBras, as the Industrial Demonstrator for the complete production cycle of Brazilian rare earth permanent magnets was named and officially launched on July 14 in Belo Horizonte, the capital of the state of Minas Gerais.
The goal is to unite industry with universities and research centers so that Brazil does not continue primarily as a major exporter of raw materials, without added value, as is the case with coffee, iron, oil, and soybeans.
Rare earth processing technology was developed decades ago in many countries, which abandoned the activity in the face of China’s low-cost production, recalled André Pimenta, who leads the project as coordinator of the Rare Earths Institute of Fiemg.
Some of the 17 chemical elements of rare earths, critical for the future and whose demand is projected to multiply 30 times in the coming decades. After China, Brazil is the second country with the largest estimated reserves of these rare earths, for which a geostrategic and geopolitical battle has already begun. Credit: Icog
Better deposits
In addition to having large ionic clay deposits, which have advantages over the rocky ones in other countries, the scale of production and the scant or non-existent environmental requirements contributed to China’s advance towards a near monopoly, he noted.
Brazil has similar areas of ionic clay, a factor that, with the advancement of technologies, favors the country’s potential to emerge as an alternative producer with the possibility to compete, even if it is “difficult or even impossible” to surpass China, acknowledged the chemist Pimenta in a telephone interview with IPS from Belo Horizonte.
MagBras has a laboratory in facilities originally designed for a factory with the capacity to produce 100 tons of magnets per year, the only one existing in the southern hemisphere, which will serve for research and even production on that limited scale.
Nery, from Ibram, warns of the risk of focusing on a single resource to the detriment of the set of critical minerals, which in addition to rare earths includes lithium, cobalt, nickel, among others. These are scarce products.
There was already enthusiasm for lithium, due to the increased demand for cell phone and electric vehicle batteries; a few years earlier the same thing happened with niobium, he recalls.
“Technologies change and alter priorities,” he warned. That is why it is necessary to define a policy to promote the 22 critical and strategic minerals, with defined and flexible priorities.
The production of electric cars in Brazil has gained momentum in 2025, which will increase the demand for magnets, intended to be manufactured in Brazil with the rare earths abundant in some regions of the country. Credit: Mario Osava / IPS
Set of factors
Furthermore, value-added projects require a broad view of the different factors that affect the entire chain. Adequate infrastructure, with good roads, availability of energy, and sufficient demand for the chosen products are indispensable for success, he exemplified.
“Do we have firm demand for permanent magnets? The products that incorporate them, such as batteries, electric car motors, and wind turbines, are currently imported,” Nery pointed out.
In his opinion, “the government must promote conditions to generate internal demand, in a general effort, since industrial participation in the Brazilian economy has greatly reduced in recent decades.”
Research centers have already developed solutions for refining rare earths, the most costly process, but doing it on an industrial scale will require a lot of investment and time, according to Nery, a mining engineer.
In mining, any project takes at least five years in geological research, environmental licensing procedures, and operational preparation, he noted.
Brazil, which in the past sought rare earths in monazite, which is unfavorable because it contains radioactive material, now concentrates its extraction on ionic clay, which is better. “Its deposits are superficial, which facilitates research and limits environmental impacts,” he pointed out.
A concrete experience with this type of soil is that of Serra Verde, a company owned by two US investment funds and one British fund, with a plant in Minaçu, in the state of Goiás, in central-western Brazil.
It began operations in 2024 and has already exported US$7.5 million to China this year, according to Nery. It produces the oxide concentrate, a first step in processing, which enriches and increases the rare earth content index in the clay, which in the soil is only 0.12%, according to Serra Verde.
A positive note is that its concentrate contains the most in-demand elements because they are used to make permanent magnets: the light ones neodymium and praseodymium, in addition to the heavy ones dysprosium and terbium. The heavy ones are rarer and less present in rocky or monazite deposits.
But Serra Verde’s goal of producing 5,000 tons of concentrate per year and doubling that amount by 2030 seems distant. In the first half of 2025, it only exported 480 tons, it was revealed, as the company does not disclose its data.
Also in the state of Goiás, the current Brazilian epicenter of rare earths, another project, the Carina Module, by the Canadian company Aclara Resources, expects to extract mainly dysprosium and terbium starting in 2026, with investments of US$600 million.
“The critical phase of processing and the one that adds the most value is the separation of the rare earth elements, with high costs due to numerous and successive treatments, not so much because of the technology,” said Fernando Landgraf, an engineer and professor at the Polytechnic School of the University of São Paulo.
One kilogram of neodymium oxide, present in these heavy rare earths, is worth at least 10 times more than the five dollars for a kilogram of concentrate, he said by telephone from São Paulo.
Mining company Serra Verde, in Minaçu, state of Goiás, where the extraction of rare earths began, which, in an initial processing, were concentrated and exported to China. They contain four of the 17 rare earth elements used to produce permanent magnets, key components of electric motors, wind turbines, and military and space equipment. Credit: Serra Verde
The threat of uncertainty
In his assessment, “the biggest risk of the business is the uncertainty about the future,” especially now that rare earths have become a target and a weapon of geopolitics.
The demand for rare earths will grow significantly, but a large increase in production in the United States could lead to an oversupply. It is a limited market, far from the volumes of other minerals, such as iron ore.
“Uncertainty does not justify sitting idly by. Demand will grow, and the movement to reduce dependence began earlier, during the pandemic, which left many without essential respirators and medical equipment because there was nowhere to import from. It is a one-way street,” stated Pimenta.
Geologist Nilson Botelho, a professor at the University of Brasilia, considers the estimate of Brazil’s reserves to be reliable. Mining in Goiás is successful because it contains heavy rare earths, the “most critical” ones, which are among the “four or five most valuable elements.”
But there are many deposits in other parts of Brazil. In addition to the geological formation of its very extensive territory of over 8.5 million square kilometers, the temperate tropical climate, rainfall that infiltrates the soil, and the high plateau favor the presence of rare earths, he explained to IPS from Brasilia.
Another geologist, Silas Gonçalves, opposes the idea that mining in ionic clay has fewer environmental impacts.
Mining there alters the landscape and the soil, causes deforestation and diffuse damage, such as changes and contamination of the water table. These are different impacts, not lesser ones, he argued to IPS from Goiânia, the capital of Goiás, where he runs his geological and environmental studies company, called Gemma.