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Strategic Mineral Supply Chain Concentration Risks Materialize: IEA Analysis Highlights Urgent Need for Stockpiling Systems

The International Energy Agency (IEA) has long cautioned about the potential security vulnerabilities associated with concentrated critical mineral supply chains. In 2025, these risks manifested at scale, representing a significant turning point for global economic stability. The imposition of export controls on critical minerals, particularly rare earths, by China in October 2025, amplified these vulnerabilities across multiple strategic sectors, including energy, automotive, defense, aerospace, artificial intelligence, and semiconductors.

These controls, following earlier restrictions introduced in April 2025, directly impacted automotive production globally, forcing numerous factories to reduce utilization rates or, in some instances, enact temporary shutdowns. Beyond rare earths, export controls extended to strategic minerals such as gallium, germanium, graphite, and tungsten – materials pivotal to semiconductors, batteries, aerospace applications, and defense systems. The Global Critical Minerals Outlook 2025 report confirmed China’s dominance, controlling refinement of 19 out of 20 strategic minerals closely monitored by the IEA, with an average market share of approximately 70%. Notably, over half of these minerals were already subject to some form of export restriction.

IEA analysis reinforces that the concentration of supply is no longer a theoretical risk but a tangible and escalating threat to national and economic security. Increasing market share by the largest suppliers of key critical minerals, especially in refining operations, exacerbates this concern. This situation necessitates a strategic re-evaluation of supply chain resilience and highlights the urgent need for robust stockpiling systems to mitigate future disruptions.