The West’s effort to build an independent rare-earth magnet supply chain is being undermined by a severe shortage of heavy rare earth elements—especially dysprosium and terbium—which are essential for high-temperature magnets used in electric vehicles, defense systems, and wind turbines. Although the U.S. is heavily supporting MP Materials to create a fully domestic supply chain, its Mountain Pass mine contains only trace amounts of these heavy elements, forcing the company and others to seek supplies from countries like Brazil, Malaysia, and Canada. Despite new deals, recycling initiatives, and projects from firms such as Lynas, Iluka, and VAC, Western production is expected to meet only about 29% of heavy rare earth demand by 2035. Environmental challenges, high processing costs, and China’s dominant control—currently exceeding 90% of global supply—remain major barriers. As demand surges, shortages are forecast to deepen, making heavy rare earths the critical bottleneck in Western plans to reduce reliance on China.
This highlights how the West is urgently trying to reduce its dependence on China for heavy rare earth elements, which are essential for electric vehicles, clean energy, and defense technology. Despite major U.S. investments in companies like MP Materials, Western nations still lack sufficient sources of heavy rare earths such as dysprosium and terbium, and new mining or refining projects will take years to mature. China’s dominance gives it significant geopolitical leverage, turning critical minerals into a key front in U.S.–China rivalry. Environmental challenges, high costs, and limited supply outside China further complicate Western efforts. As a result, governments and industry are exploring alternative suppliers, recycling, and long-term partnerships with countries like Australia, Brazil, Malaysia, and Canada to secure more stable and diversified supply chains.
Western governments should respond to heavy rare earth shortages by diversifying supply chains, investing in mining and refining capacity, expanding recycling programs, coordinating policy among allies, and building strategic stockpiles. China, meanwhile, should maintain stable export policies and improve environmental standards to preserve its dominance without provoking geopolitical backlash. Rare earth companies must innovate extraction and recycling technologies, pursue government partnerships, and ensure environmental compliance. Resource-rich developing countries such as Brazil, Malaysia, and Vietnam should leverage rising demand by negotiating high-value deals, insisting on technology transfer, and strengthening environmental governance. Together, these strategic responses reveal how each actor must balance economic interests, sustainability, and geopolitical risk.
The rare earth competition illustrates central IB Global Politics concepts including power, interdependence, and security. China’s control over heavy rare earth refining grants it significant structural power, shaping global supply chains and influencing Western strategic vulnerability. Efforts by the U.S. and its allies to build independent supply lines show how sovereignty is constrained by economic interdependence, especially in globalized technological markets. The issue also highlights the intersection of development and sustainability, as resource-rich states seek economic growth while managing environmental risks. Ultimately, the rare earth race demonstrates how access to critical resources reshapes global influence, security dynamics, and the evolving balance of power in the international system.
