Brazilian Rare Earth Plant Tests West’s Supply Chain Ambitions

The small town of Minacu in Brazil’s Goias state, once a center for asbestos mining, is emerging as a strategic outpost in the global competition for rare earth elements. This remote settlement is now home to the country’s first rare earths processing facility, a project backed by the U.S. government as part of a broader effort to reduce Western dependence on Chinese supplies. The development marks a tangible shift in the geography of critical mineral supply chains, though its real-world impact remains conditional on scaling and time.

Rare earths are a group of 17 metallic elements essential for permanent magnets used in electric vehicles, wind turbines, and advanced military hardware. China currently dominates every stage of the supply chain, from mining to separation to magnet manufacturing, controlling over 85 percent of global processing capacity. Western nations have long acknowledged the risk of relying on a single geopolitical rival for such foundational inputs, but building alternative capacity has proven slow and expensive. The Minacu facility, operated by the Brazilian mining company Serra Verde, is one of the few new non-Chinese refineries to come online in recent years. It processes monazite, a phosphate mineral rich in neodymium, praseodymium, and dysprosium, the elements most valued for high-strength magnets.

The U.S. Defense Department has provided direct financial support to Serra Verde, channeling funds through its Defense Production Act Title III program, which aims to shore up domestic industrial base vulnerabilities. While the processing facility is located in Brazil, the final magnet-grade oxides and metals could supply U.S. manufacturers, bypassing Chinese intermediate producers. This arrangement takes advantage of Brazil’s significant rare earth deposits without requiring expensive new mines on U.S. soil. For local residents in Minacu, the transition from asbestos to rare earths represents more than economic diversification; the asbestos mine that once sustained the town was permanently closed in 2021 due to health concerns and a nationwide ban on the carcinogenic mineral. The new facility has hired hundreds of former asbestos workers, retraining them for a cleaner, safer industrial process.

Yet the scale of the operation remains modest compared to Chinese output. Serra Verde’s planned annual production of roughly 5,000 tons of rare earth oxides would supply only a small fraction of global demand, which exceeds 200,000 tons per year. The economic viability of the project also depends on stable rare earth prices, which have fluctuated sharply in recent years as China has adjusted export volumes and domestic demand. Furthermore, the separation and refining of individual rare earths into usable metals remains a sophisticated chemical process that China has perfected over decades. Brazil and its U.S. partners have yet to demonstrate they can replicate that efficiency at a competitive cost.

The Minacu project is a credible step toward supply chain resilience, but it is not a breakthrough. It shows that alternative processing capacity can be built, but it also illustrates how far the West still has to go. Diversifying rare earth supply chains will require multiple such facilities, sustained government support, and stable market conditions over many years. For now, Minacu is a symbol of intent rather than a solution. Its success or failure will offer an early signal of whether Western industrial policy can effectively challenge Chinese dominance in critical minerals, or whether the gap remains too wide to close.