Rare Earth: Supply Chain, Processing Developments and Critical Mineral Demand
Rare earth elements are a group of 17 metals essential to permanent magnets, electronics, defence systems, and clean energy technologies including EV motors and wind turbines. Critical minerals more broadly encompass a range of materials, including lithium, cobalt, graphite, nickel, manganese, and others, that are considered strategically vital to energy transition and advanced manufacturing supply chains. The overlap between rare earths and the broader critical minerals category is significant: both are subject to supply concentration risks and active government policy to reshape production and processing geography.
China dominates rare earth processing globally, refining more than 85% of the world's rare earth elements even where mining occurs in other countries. This concentration has made rare earth supply chains a major policy focus for the United States, European Union, Australia, Japan, and other nations pursuing supply chain diversification. Export controls imposed by China on several rare earth processing technologies and products in recent years have intensified this focus, prompting government-backed programmes to support domestic processing capacity in Western countries.
Discovery Alert covers rare earths and critical minerals through news on mining and processing project developments, government policy announcements and critical mineral strategy updates, corporate developments among listed producers including Lynas Rare Earths and MP Materials, and the geopolitical developments affecting supply chain access. Coverage tracks both ASX-listed companies and internationally significant producers across multiple critical mineral categories.
Rare earths and critical minerals sit at the intersection of resources, technology, and geopolitics. The race to establish supply chains independent of Chinese processing dominance is one of the defining industrial policy stories of the decade. Discovery Alert tracks the project milestones, government decisions, and corporate activity that are reshaping where these essential materials come from and how they reach the industries that need them.
Frequently Asked Questions
Is there an ETF that invests in rare earth minerals?
Yes. The VanEck Rare Earth and Strategic Metals ETF (REMX) is the primary US-listed ETF providing exposure to rare earth and strategic metal producers. REMX holds a basket of companies involved in rare earth and strategic metal mining, processing, and refining across multiple countries, providing diversified exposure to the sector rather than concentration in any single company or geography. For investors seeking exposure to the broader critical minerals sector including rare earths, ETFs such as Sprott Junior Uranium Miners ETF and various critical minerals-themed funds hold companies across the battery and energy transition metals supply chain. On the ASX, rare earth exposure is accessible through individual listed companies including Lynas Rare Earths, the largest non-Chinese rare earth producer globally.
What are rare earth metals used for?
Rare earth metals have highly specific applications tied to their unique electromagnetic and optical properties. Neodymium and praseodymium are the most commercially significant rare earths, used in neodymium-iron-boron permanent magnets that power electric vehicle motors, wind turbine generators, hard disk drives, and audio speakers. Dysprosium and terbium are added to neodymium magnets to maintain performance at high operating temperatures. Cerium is used in catalytic converters, polishing compounds, and glass manufacturing. Lanthanum is used in oil refining catalysts and camera and telescope lenses. Europium, terbium, and yttrium are used in phosphors for displays and lighting. Erbium is used in fibre optic cables. Gadolinium is used in MRI contrast agents. The defence and aerospace sectors use rare earths across radar systems, missile guidance, communications equipment, and avionics, making secure supply chains a national security priority for governments.
Are rare earth metals a good investment?
Rare earth investment offers exposure to the strategic importance of critical mineral supply chains, with demand structurally supported by electric vehicle motor magnets, wind turbine generators, and defence electronics. The investment case is complicated by the market structure: rare earths are not traded on commodity exchanges with transparent spot prices, pricing is negotiated privately between producers and customers, and China control over refining and processing means that even ore mined elsewhere often requires Chinese processing infrastructure. Western governments have invested substantially in developing alternative processing capacity, creating catalysts for non-Chinese producers but also policy dependency risk. Listed rare earth companies carry significant project development risk, processing cost risk, and the challenge of competing against Chinese producers with established infrastructure and lower processing costs. Investors should assess individual company stage, processing capability, offtake arrangements, and government support alongside the strategic demand narrative.
What is gallium and why is it a critical mineral?
Gallium is a soft, silvery metal primarily produced as a by-product of aluminium smelting from bauxite ore. It has no primary gallium mines. Gallium is essential to compound semiconductors used in high-frequency electronics, satellite communications, radar systems, and LED lighting. Gallium arsenide and gallium nitride are used in 5G infrastructure, military radar, and power electronics. China produces approximately 80% of global gallium supply and in 2023 imposed export restrictions on gallium and germanium, highlighting the strategic vulnerability of supply chains for these materials. Western governments have identified gallium as a critical mineral requiring supply chain diversification. Investors can access gallium-adjacent exposure through semiconductor materials companies and the broader critical minerals sector rather than through dedicated gallium mining companies or ETFs.
Which countries are developing rare earth production outside China?
Several countries are actively developing rare earth production capacity to reduce dependence on Chinese supply. Australia is the most advanced, with Lynas Rare Earths the largest producer of separated rare earth products outside China, operating the Mount Weld mine in Western Australia and a processing facility in Malaysia with US government funding. The United States has Mountain Pass in California operated by MP Materials, the only significant rare earth mining operation in the country. Canada has multiple rare earth projects in development including Vital Metals. Greenland has large rare earth deposits though development faces environmental and geopolitical complexities. India has substantial monazite deposits and an established rare earth processing industry. Brazil has significant rare earth resources. Government funding programs in the US, EU, Australia, and Japan are supporting these alternative supply chain investments as a strategic response to the concentration of rare earth production and processing in China.