Sprott Rare Earths Ex-China ETF (REXC)

Sprott Rare Earths Ex-China ETF is a specialized fund that tracks companies mining and processing rare earth elements and other critical minerals in the world, excluding China. Rare earths are the seventeen metallic elements central to modern technology: neodymium and dysprosium in wind turbine generators and electric vehicle motors, lithium in batteries, cobalt in semiconductors, and tantalum in capacitors. China has dominated global rare earth production and refining for decades, giving it outsized leverage over countries that depend on those supply chains. REXC lets investors gain exposure to the producers outside China — primarily in Southeast Asia, Africa, North America, and Australia — who are racing to build alternative supplies.

The fund captures the supply-chain bet: that rising geopolitical tension and security concerns will accelerate investment in rare earth mining and processing outside China.

What REXC holds and the supply chain thesis

The fund’s underlying index includes mining companies, processors, and refiners of rare earths and critical minerals listed on major exchanges. The typical holding is a mid-cap or small-cap mining firm headquartered in countries like Myanmar, Vietnam, Indonesia, Tanzania, Congo, Australia, or Canada — places with geological deposits and, increasingly, the political will to develop them. The largest holdings tend to be companies like Lynas Rare Earths in Australia and MP Materials in the United States, which operate mines and processing facilities aiming to reduce global dependence on Chinese supply.

The investment thesis is straightforward: as governments recognize the strategic importance of rare earth supply chains, they will fund and encourage mining and refining outside China. Defence departments, battery makers, and renewable-energy companies all need diversified supplies of these materials, and the cost of ensuring supply security outweighs the cost of paying slightly higher prices for non-Chinese sources.

Commodity volatility and single-factor risk

Like any fund concentrated on a single commodity or material class, REXC is highly exposed to the price of rare earth elements themselves. When a major economy signals it will build a new electric-vehicle factory, prices can spike. When mining projects are delayed or a new supply comes online, prices crash. The fund’s holdings also move on mining-company sentiment and mining-specific risks: permitting delays, environmental opposition, geopolitical instability in host countries, and the cyclical nature of commodity prices all affect the stocks directly.

The fund is not hedged, so an investor holds both the commodity price risk and the equity risk of the companies themselves. A company that owns a rare earth mine is not a pure commodity play — it has management, costs, margins, and competitive position — but the commodity price is the dominant driver of returns.

Structure, costs, and limited liquidity

REXC trades as a standard ETF on a major exchange, but liquidity can be thinner than in broad-market funds because the universe of rare earth companies is small and relatively illiquid on its own. The bid-ask spread can widen significantly, particularly on large orders, making entry and exit more expensive than in a mega-cap index fund. The expense ratio is moderate-to-high for an ETF, typically in the 0.50% to 0.75% range, reflecting the active curation of the index and the specialized nature of the holdings.

Who REXC is for and how to research it

REXC suits investors with a strong conviction that geopolitical supply-chain concerns will drive investment in rare earth mining outside China and who can tolerate significant commodity volatility. It is a tactical or long-term thematic position, not a core holding for a diversified portfolio, because concentration in a single commodity class means the fund can fall sharply if the supply-chain thesis weakens or if rare earth prices decline.

To research REXC, start with the fund prospectus and the index methodology, which detail the selection criteria and which countries and companies are included. The fund’s top holdings give a clear picture of which mining companies are betting on the supply-chain narrative. From there, follow news on rare earth production capacity announcements, geopolitical developments affecting mining in specific countries, and any government incentives or tariffs affecting rare earth trade. The commodity price itself — tracked by industry sources and market data providers — is the single most important driver of the fund’s price.