China's Rare‑Earth Export Restrictions Loom Over Global Supply Chains, Says IEA

When you hear the words “rare earths” you might picture exotic minerals hidden deep in the earth, but the reality is a little less glamorous – they’re the invisible workhorses behind everything from smartphones to electric‑car motors. That’s why the International Energy Agency (IEA) is sounding the alarm after China, the world’s biggest producer, rolled out sweeping export restrictions.

Back in April 2025, Beijing announced heavy‑handed controls on seven heavy rare‑earth elements. The move wasn’t just bureaucratic red‑tape; it sent shockwaves through supply chains that rely on a steady flow of these metals. Some car makers even had to trim their utilisation rates, while a few factories hit the pause button altogether.

Fast‑forward to October 2025, and China widened the net. The new rules targeted any internationally‑made product that contained rare‑earths sourced from China or built with Chinese technology. Although the expanded measures were temporarily lifted for a year – they’re set to swing back into force in November 2026 – the risk lingered all the same. According to the IEA, a full‑blown re‑implementation could put roughly USD 6.5 trillion of downstream production outside China in jeopardy each year, spanning automotive, high‑tech, defence and energy sectors.

And it’s not just the policy side that’s unsettling. Prices for critical minerals have been on a roller‑coaster ride. After a dip, 2025 and early 2026 saw a sharp rebound: copper, aluminium and tin jumped by about a third between January 2025 and April 2026, while lithium – the lifeblood of batteries – more than doubled as demand for energy storage exploded. Tungsten, a strategic metal, surged six‑fold, driven by booming high‑tech and defence orders.

Geography adds another layer of vulnerability. The world’s refining map is still heavily skewed – China dominates the refining of many key energy minerals, and Indonesia leads in nickel. Together, the top refining nations accounted for over 75 % of the growth in refined supply over the past two years. If you strip away rare earths, the leading country still held a 72 % share in 2025.

Meanwhile, investment in critical‑mineral projects slipped 9 % in 2025, with capital spending on battery metals falling more than 20 %. The IEA notes that, because these minerals usually represent a modest slice of a final product’s cost, most consumers might not feel the pinch directly. Yet some intermediate industries could face tighter margins and may need targeted support to stay afloat.

So what’s the short‑term fix? The agency points to strategic stockpiles. For eleven high‑risk materials it assessed, the net annual cost of holding a buffer outside the dominant supplier nations clocks in at under USD 900 million – a relatively modest price tag for a safety net against sudden supply disruptions.

All this paints a picture of a market that’s both volatile and heavily concentrated. Diversifying sources, boosting domestic refining capacity, and maintaining modest reserves could help smooth out the bumps. For now, businesses and governments alike are watching China’s next policy move like a hawk, aware that any shift could ripple through supply chains worth trillions.