Export Restrictions on Critical Materials Hit 16-Year High as Supply Chains Fragment
OECD data shows governments weaponizing rare earths, lithium, and semiconductor inputs at scale—restrictions now affect 70% of global cobalt exports as China codifies supply chain statecraft.
Export restrictions on critical raw materials increased more than fivefold between 2009 and 2024, reaching an all-time high as governments systematically weaponize supply chain chokepoints across defense, semiconductors, and renewable energy sectors.
The escalation reflects a structural shift from market-driven trade to deliberate economic statecraft, per OECD data released today. Restrictions now cover up to 70% of global exports of cobalt and manganese, 47% of graphite exports, and 45% of rare earth elements—commodities essential to electric vehicle batteries, wind turbines, and advanced Semiconductors.
The trend accelerates fragmentation into competing supply blocs rather than integrated global markets. China controls over 90% of global rare earth refining and processing, according to International Energy Agency analysis. Beijing expanded export controls to five additional rare earth elements in November 2025, then codified this approach in sweeping ‘Regulations on Industrial Chain and Supply Chain Security’ effective April 7, 2026—elevating disparate legal tools into a unified economic statecraft framework, per Center for Strategic and International Studies.
Semiconductor Vulnerabilities Exposed
Taiwan manufactures around 90% of the world’s most advanced logic chips, creating acute geopolitical exposure, according to Omdia analysis. Research published in ScienceDirect in March 2025 found Taiwan’s supply chain would be particularly vulnerable to quarantine scenarios before 2027.
Memory prices surged approximately 90% in the first quarter of 2026 amid supply chain disruptions, data from CSIS shows. The spike illustrates how concentrated production creates macro instability—supply shocks are now weaponized policy tools rather than market failures.
Diversification efforts remain nascent. TSMC’s Arizona facility began mass production of four-nanometer chips in early 2025; Apple announced in February 2026 it would purchase more than 100 million chips from the facility, The Hilltop reported. US semiconductor capital expenditure reached $640 billion across 30 states as of January 2026. India approved 10 semiconductor projects attracting roughly $17.3 billion in investment commitments through March 2026.
But these timelines lag the threat. China accounts for 70% of global cobalt mining output and 70-80% of worldwide rare earth oxide production—midstream dominance that extends beyond mining to refining, per BloombergNEF data through December 2025. Chinese companies accounted for over 93% of global energy storage cell shipments (246.4 GWh) in the first half of 2025.
“While the United States dismantled our institutional power to lead across sectors vital to America’s economic and national security, China made deliberate, decades-long investments to capture strategic Supply Chains.”
— Ben Black, CEO of U.S. International Development Finance Corporation
Energy Transition at Risk
Lithium demand could grow tenfold by 2050 under the IEA’s Net Zero Emissions by 2050 Scenario, according to Columbia University Center on Global Energy Policy analysis. Supply deficits are projected to emerge by the 2030s—precisely when export restrictions are intensifying.
The top three countries for cobalt, lithium, and nickel account for over two-thirds of global production, rising to nearly 90% for rare earth elements. This concentration creates leverage. Vietnam amended its Geology and Minerals Law effective January 1, 2026, to ban export of unprocessed rare earth minerals and classify them as strategic national assets, Just Security reported. Companies seeking Vietnam’s reserves must now invest in domestic refining capacity.
The Democratic Republic of Congo accounts for approximately 70% of global cobalt mining output. In 2018, the government increased royalty rates from 2% to 10%, signaling resource nationalism as a policy tool. India, China, Argentina, Vietnam, and Burundi account for over half of all new export restriction measures implemented between 2009 and 2024, data from the OECD shows.
Upstream Restrictions Multiply
Export restrictions on upstream supply chains—ores and minerals—increased tenfold between 2009 and 2024, per OECD press release data. This represents a strategic shift: rather than restricting finished products, governments now control raw inputs to force downstream investment within their borders.
OECD Secretary-General Mathias Cormann warned the trend “may elevate prices and supply chain disruption risks, undermining global growth, renewable energy expansion, and digitalisation.” The statement acknowledges restrictions as deliberate policy rather than temporary protectionism.
- Export restrictions increased fivefold since 2009, now affecting 70% of cobalt/manganese, 47% of graphite, 45% of rare earth exports
- China controls 90%+ of rare earth refining; codified supply chain statecraft in April 2026 regulations
- Taiwan’s 90% share of advanced logic chips creates acute vulnerability; diversification efforts lag threat timelines
- Lithium demand projected to grow 10x by 2050; supply deficits expected by 2030s as restrictions intensify
- Memory prices surged 90% in Q1 2026, illustrating how supply shocks now function as weaponized policy tools
What to Watch
Monitor implementation of China’s April 2026 supply chain security regulations—the framework enables rapid escalation beyond rare earths to lithium batteries, graphite, and other inputs. Vietnam’s January 2026 rare earth export ban establishes a template for resource-rich nations to mandate domestic processing.
Track US and European diversification timelines. The $640 billion in announced US semiconductor investments creates optionality, but manufacturing capacity takes 3-5 years to operationalize. India’s $17.3 billion in semiconductor commitments represent geopolitical hedging but won’t meaningfully reduce Taiwan exposure before 2028.
The Energy Transition timeline is now a supply chain negotiation. BloombergNEF projects a 19 million ton copper shortfall by 2050; lithium deficits by the 2030s. If governments restrict exports faster than alternative supplies develop, net-zero targets become subordinate to resource access—a reordering of climate policy by materials constraint.
Watch for secondary restrictions. Countries with processing capacity but limited mining output may impose export controls to secure domestic supply. The pattern favors vertical integration within trade blocs over efficiency across them—a fragmentation that raises structural costs for semiconductors, batteries, and renewable infrastructure.