Why is Brazil investigating the US$2.8 billion sale of Serra Verde to USA Rare Earth? The case highlights rising geopolitical competition over rare earth minerals and global supply chains.
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| The investigation into Serra Verde’s acquisition by USA Rare Earth reflects the intensifying global race to secure critical minerals needed for clean energy, defense and advanced technology industries. Image: CH |
BRASÍLIA, Brazil — May 13, 2026:
Brazil has opened an antitrust investigation into the sale of Serra Verde Pesquisa e Mineração to USA Rare Earth in a move that highlights the growing geopolitical importance of critical mineral supply chains.
The General Superintendence of Administrative Council for Economic Defense, known as Cade, announced proceedings to examine whether the US$2.8 billion transaction and a related long-term supply agreement should have been formally submitted for antitrust review before being finalized in April.
Although Cade stressed that the opening of the case does not automatically indicate irregularities or anti-competitive behavior, the investigation comes at a time when governments worldwide are tightening oversight of strategic industries linked to national security, advanced technology and energy transition goals.
At the center of the case is Serra Verde, currently the only rare earth mining company operating in Brazil. The company runs a major mining project in Goiás state and has emerged as a potentially critical supplier of heavy rare earth elements outside China.
USA Rare Earth and Serra Verde announced plans to create a multinational rare earth enterprise with eight operations spanning Brazil, the United States, France and the United Kingdom. The integrated structure would cover the entire production chain, from mining and processing to the manufacturing of high-performance magnets used in electric vehicles, wind turbines, defense systems and advanced electronics.
The deal also includes a 15-year agreement under which 100% of Serra Verde’s initial production would be supplied to a special-purpose entity backed by the U.S. government and private investors. That provision is likely to attract particular attention from Brazilian regulators because it ties a nationally significant mineral resource to long-term foreign strategic interests.
The investigation reflects the broader global race to secure rare earth supplies as Western economies seek to reduce dependence on China, which dominates both mining and refining capacity in the sector. Beijing currently controls much of the global supply chain for heavy rare earth elements, which are considered essential for clean energy technologies and military applications.
Washington has increasingly invested in building alternative supply networks among allied and partner countries. The Serra Verde acquisition aligns with that strategy by strengthening U.S.-linked access to critical minerals in Latin America.
According to USA Rare Earth, production from Serra Verde’s operations could account for more than half of the world’s heavy rare earth supply outside China by 2027. If achieved, that would significantly reshape the global market and reduce Western reliance on Chinese exports.
For Brazil, the transaction represents both economic opportunity and strategic complexity. The country possesses vast untapped mineral reserves and is seeking to attract foreign investment into mining and industrial development. However, the transfer of control over strategic resources to foreign companies may also trigger debates over sovereignty, industrial policy and long-term national interests.
Analysts say Cade’s review could become an important test case for how Brazil approaches future foreign investments involving critical minerals. Approval without conditions could reinforce Brazil’s reputation as an open destination for international capital. More restrictive measures, however, may indicate growing concern over foreign influence in sectors tied to technological and geopolitical competition.
The case also demonstrates how rare earth minerals have become central to global power dynamics. What was once considered a niche segment of the mining industry is now directly connected to the future of artificial intelligence, clean energy, defense manufacturing and industrial independence.
As the investigation moves forward, governments and investors alike will be watching closely to see whether Brazil prioritizes foreign investment, strategic autonomy or a balance between the two in one of the world’s fastest-growing resource sectors.