US has two months of rare earth supplies left, SCMP reports
The United States has only approximately two months of rare earth element supplies remaining, according to analysts cited by the South China Morning Post, highlighting critical vulnerability in the defense supply chain. China's dominance in rare earth production and processing could provide Beijing with significant leverage over US military operations if export restrictions are imposed, underscoring the geopolitical and strategic implications of America's dependency on foreign rare earth sources.
The United States faces a critical vulnerability in its rare earth element (REE) supply chain, with analysts warning that the nation has less than two months of reserves remaining. This alarming shortage has significant implications for national security, military readiness, and geopolitical stability in an era where rare earth elements are essential components in advanced defense systems, renewable energy technologies, and electronics manufacturing.
Rare earth elements comprise 17 chemically similar metals crucial for modern technology applications. These elements are vital components in military equipment including fighter jets, missile guidance systems, radar systems, and satellite communications. Beyond defense applications, rare earths are essential in commercial technologies such as electric vehicle motors, wind turbines, computer hard drives, and smartphone displays. The concentration of rare earth processing capacity in China—which controls approximately 80-90% of global rare earth refining—creates a significant strategic vulnerability for the United States and its allies.
Analysts consulted by the South China Morning Post emphasize that Beijing could leverage this supply chain dependency to gain indirect control over the duration and cost of US military operations. If China were to restrict rare earth exports or disrupt supply chains, the consequences would be severe and far-reaching. The US military would face operational constraints that could impact procurement timelines for critical defense systems, reduce production capacity for advanced weaponry, and potentially compromise military readiness during geopolitical crises.
The two-month supply buffer represents an extraordinarily tight timeframe for a nation with global military commitments and advanced technological needs. This shortage stems from several interconnected factors: limited domestic rare earth mining and processing capacity in the US, historical underinvestment in domestic production infrastructure, extended lead times for rare earth extraction and refinement, and regulatory barriers that have hindered domestic mining development. Additionally, the US has traditionally relied on importing finished rare earth products or processed materials rather than investing in vertically integrated domestic supply chains.
The Biden administration and Congress have recognized this vulnerability and have begun implementing policy responses. The Defense Production Act has been invoked to support domestic rare earth processing capacity, and significant government funding has been directed toward expanding American rare earth mining and processing infrastructure. However, these initiatives require substantial time to develop—new mining operations typically take 5-10 years from permitting to production, and refining capacity development faces similar timelines.
Industry experts and policymakers acknowledge the urgent need for a multi-pronged approach to address this critical minerals challenge. Strategies include accelerating domestic mining projects, developing advanced recycling technologies to recover rare earths from electronic waste, diversifying supply sources away from China through partnerships with allied nations, and investing in research for rare earth element alternatives in defense and commercial applications.
The rare earth supply crisis underscores broader issues regarding critical mineral dependencies and supply chain resilience. As global demand for rare earths continues to grow—driven by the clean energy transition and technological advancement—securing stable, diversified supply sources has become a matter of national security. The US and its allies must act decisively to reduce dependency on single-source suppliers while building robust domestic capabilities and establishing strategic partnerships to ensure long-term supply security and maintain technological and military superiority.