Several key minerals essential for digital and renewable energy technologies face high exposure to export restrictions, with the number of such measures continuing to rise, according to a press release by the OECD issued on 28 April 2026. The annual update of the OECD Inventory of Export Restrictions on Critical Raw Materials, which analyses measures implemented through the end of 2024, shows that such restrictions have reached an all-time high. Although the growth rate of new export restrictions slowed from 3.4% in 2023 to 0.6% in 2024, a wider range of countries, particularly in Africa and Asia, introduced new restrictions. The findings were presented at the OECD Critical Minerals Forum in Istanbul. The report signals rising risks to global supply chains for materials central to the energy transition.
The inventory tracks export restrictions and supports analysis of their impact on availability, prices and global supply chains. Export restrictions on critical raw materials have increased steadily over the past 15 years. Some minerals essential for energy systems, such as cobalt, manganese, graphite and rare-earth elements, saw particularly high exposure. Roughly 70% of global exports of cobalt and manganese were subject to at least one export restriction between 2022 and 2024. Overall, 16% of trade in critical raw materials monitored by the OECD faced at least one export restriction over the same period.
While demand for critical raw materials is rising rapidly, supply remains slow to adjust and highly concentrated. Although the leading producers differ by material, the top three countries for each of cobalt, lithium and nickel account for over two-thirds of global production. That share rises to nearly 90% for rare earth elements. Policy measures are also concentrated, with India (19%), China (17%), Argentina (6%), Viet Nam (5%) and Burundi (4%) accounting for over half of all new measures implemented between 2009 and 2024. These patterns underscore the vulnerabilities embedded in concentrated supply chains.
OECD Secretary-General Mathias Cormann highlighted the stakes for economies worldwide.
“Countries around the world depend on reliable access to critical raw materials for economic growth, innovation and energy security,” he said at the OECD Critical Minerals Forum in Istanbul.“Export restrictions can increase supply chain vulnerabilities in highly concentrated supply chains by limiting export volumes and driving up prices.”
He added that improving transparency on these measures is key to promoting more open and diversified markets for critical minerals. Cormann also pointed to the need to incentivize investment to scale up production and promote mutually beneficial partnerships with producer countries.
See also: Africa’s critical minerals moment: Sovereignty or a scramble for control?
Waste and scrap materials remain the most frequently restricted category of critical raw materials in 2024, reflecting both environmental concerns and growing interest in the circular economy as a source of metals and minerals. Export restrictions on upstream supply chains, such as ores and minerals, grew sharply between 2009 and 2024, increasing tenfold during this period. Highly restrictive measures, such as export prohibitions and quotas, accounted for more than one-third of new measures in 2024. Revenue generation has been the fastest-growing stated rationale behind export restrictions since the early 2010s and became the most cited reason in 2024, accounting for nearly half of measures. The OECD continues to monitor these measures over time to support more resilient and well-functioning critical raw material supply chains.
