Dysprosium

What it is

Dysprosium (symbol Dy, atomic number 66) is a heavy rare earth element (HREE) used almost exclusively as a performance additive in neodymium-iron-boron (NdFeB) permanent magnets. Adding up to 5% dysprosium by weight raises the magnet's coercivity, the resistance to demagnetisation at elevated temperatures, which lets EV traction motors and wind turbine generators maintain full output above 150°C. Without it, high-grade NdFeB magnets lose their field under operating heat. Dysprosium is not extracted as a primary product. It occurs as a trace constituent in rare earth ores, concentrated most usefully in ionic clay deposits that are leached in situ. Those deposits are geologically uncommon outside southern China's Jiangxi and Guangdong provinces. The element's name derives from the Greek "dysprositos," meaning hard to get.

History

French chemist Paul Émile Lecoq de Boisbaudran isolated dysprosium in 1886, and it remained a laboratory curiosity for nearly a century. Commercial demand began only after the independent invention of NdFeB magnets in 1982-1983, by Masato Sagawa at Sumitomo Special Metals in Japan and a team at General Motors in the United States. Deployment in EV motors and wind generators scaled through the 2000s and accelerated sharply after China's 2009-2010 export quota cuts on rare earths. Those cuts sent dysprosium oxide prices from under US$200/kg to peaks above US$2,000/kg in 2011, the first time the element drew sustained geopolitical attention. The US, Japan, and the EU each launched critical minerals programmes in the wake of that shock. Prices collapsed after 2012 as Chinese quotas were liberalised and demand stalled, and a decade of relative calm followed before China reimposed controls in April 2025.

Current state

As of July 2026, dysprosium is subject to China's April 2025 export licensing regime, which requires national-security-based permits for exports of dysprosium in alloy, compound, metal, and oxide form. The controls remain in force with no announced end date. China produced approximately 270,000 of the world's estimated 390,000 tonnes of rare earth oxides in 2025 and holds roughly 44 million of the world's 75-plus million tonnes of reserves, per the USGS. China's share of global HREE refining exceeds 90%, and no commercial heavy rare earth separation capacity operates outside China as of mid-2026. In European and Western spot markets in late 2025, non-Chinese dysprosium oxide commanded three to four times Chinese domestic prices. The broader REE price surge that followed the April 2025 controls illustrated how quickly that gap widens when export licences stall. The Japan supply disruption that began in January 2026 showed that China applies the licensing framework by end-user category, not by volume, exposing buyers in allied defence and auto supply chains in particular.

Relationships

The dominant mining and processing nodes are China's state-backed groups: China Northern Rare Earth, China Rare Earth Holdings, and Shenghe Resources. The US ran a 67% net import reliance on rare earth compounds and metals in 2025, per USGS data. Outside China, the nearest infrastructure under construction is the Iluka Eneabba refinery in Western Australia, designed to process a full mixed rare earth oxide stream including heavies. Lynas Rare Earths processes primarily neodymium and praseodymium from its Mount Weld carbonatite in Western Australia and does not produce dysprosium at commercial scale. The EU Critical Raw Materials Act strategic project list targets HREE separation as a priority gap. The US allied minerals price floor programme seeks to underwrite partner-country production to reduce dependence on Chinese licensing. Japan, which had reduced its Chinese rare earth dependence to roughly 60-70%, remains the most exposed advanced-economy buyer.

What to watch

Whether China formalises the April 2025 licensing framework into a permanent quota or country-specific exemption system will determine the price floor through 2027. Grain-boundary diffusion processing, which concentrates dysprosium at grain boundaries rather than throughout the bulk alloy, can cut dysprosium content per magnet by up to half without sacrificing performance. Northern Minerals' Browns Range project in Western Australia's East Kimberley region and Vital Metals' Nechalacho project in Canada's Northwest Territories are the leading non-Chinese HREE development assets, both pre-revenue as of mid-2026. Commercial HREE separation outside China, the hardest link in the chain to replicate, is the critical bottleneck the entire ex-China magnet supply chain depends on solving.