Digging the ore is the easy part. Processing it is where China has built a near-unassailable lead — and the rest of the world is scrambling to respond.

Introduction

Rare earth elements (REEs) — a group of 17 metals with names like neodymium, dysprosium, and terbium — are foundational to the technologies defining the 21st century: electric vehicle motors, wind turbines, smartphone components, defence guidance systems, and advanced semiconductors. For Asian economies at the frontier of these industries, securing rare earth supply chains is a matter of both economic competitiveness and national security.

What’s in the Ground — and Where

Global reserves of rare earth elements are more broadly distributed than often assumed. China holds approximately 44 million metric tonnes — roughly 36–40% of known deposits by 2026. Russia, Vietnam, Brazil, India, and Australia also hold significant reserves. On paper, diversification is possible. In practice, the challenge is not in the mining — it is in the processing.

The Processing Bottleneck: China’s Dominance

China controls approximately 91% of global rare earth separation and refining capacity, according to International Energy Agency data. The IEA’s Global Critical Minerals Outlook identifies China as the dominant refiner for 19 of 20 critical minerals tracked — accounting for roughly 70% of total global processing capacity. Building these facilities takes years and enormous capital investment; the expertise accumulated in China over four decades cannot be quickly replicated.

Strategic Weaponisation

Beijing has demonstrated a clear willingness to use this dominance as geopolitical leverage. In April 2025, China imposed export controls on seven heavy rare earth elements critical to defence applications. By October 2025, the regime was expanded to include five further elements essential to magnet production — with immediate consequences for automotive, aerospace, and electronics supply chains globally.

The Path to Diversification

Efforts to diversify are underway — but timelines are sobering. Breaking China’s processing dominance will take at minimum a decade, requiring sustained political will, billions in capital investment, and resolution of the environmental challenges associated with rare earth refining. Australia, Canada, and India are the most advanced in building alternative processing capacity.

Summary

For professionals in Asia’s manufacturing, energy, and technology sectors, rare earth supply chains represent one of the defining strategic risks of this decade. Diversification is necessary, but it will be slow and expensive. Companies with REE exposure should be reviewing supplier relationships, building inventory buffers, and monitoring export control developments in Beijing closely.