The Rare Earth Puzzle: What They Are and How China Took Control of the World’s Supply

Rare Earth Elements (REEs) may not be on the tip of everyone’s tongue, but they are quite literally powering the world around us. From smartphones to satellites, electric vehicles to medical scanners, these 17 metals are critical to modern life — and increasingly, to national security and economic independence.

But while these elements are vital, the global supply chain behind them tells a cautionary tale. Over the last 25 years, China has strategically moved to dominate the rare earth industry, leaving the U.S. and other nations scrambling to catch up. The consequences of that shift are now being felt around the globe.

What Are Rare Earth Elements?

Rare Earth Elements are a group of 17 chemically similar metallic elements, including neodymium, europium, dysprosium, terbium, yttrium, and gadolinium. Despite the word “rare” in their name, they’re relatively abundant in the Earth’s crust. However, they’re rarely found in concentrations high enough to be mined economically — and separating them from one another is a complex and environmentally taxing process.

Yet the demand for REEs is soaring. Here’s where they show up in everyday (and extraordinary) life:

• Smartphones, tablets, and TVs rely on REEs for vibrant screen colors and compact, powerful magnets.
• Electric vehicles and wind turbines use neodymium and dysprosium magnets in their motors.
• Defense applications such as precision-guided missiles, radar systems, and night-vision goggles depend on yttrium, lanthanum, and other materials.
• Healthcare needs gadolinium for MRI contrast agents and other REEs for the development of certain cancer therapies.
• Lighting and electronics require europium and terbium for LED bulbs and flat-panel displays.
• Petroleum refining and emissions control use REEs in catalytic converters and industrial catalysts.

Without rare earths, the technologies we now take for granted — from clean energy to advanced military systems — wouldn’t work.

A Missed Opportunity: How China Gained Control

In the early 1990s, China made a quiet yet powerful move to corner the rare-earth market. While the U.S. had been a leader in rare earth mining and processing, it began stepping back from the industry. China, meanwhile, made REEs a strategic priority.

According to The Wall Street Journal, China passed laws to keep foreign companies out of its mines and invested heavily in developing the infrastructure and know-how needed to process the elements. At the time, China lacked the technology to convert REE ores into finished materials like magnets — but that changed in 1995.

That year, the U.S. government approved the sale of Magnequench, an Indiana-based company with key magnet-making technology, to a Chinese state-controlled group. Along with the company came U.S. engineers and the technology China needed to build its own rare earth manufacturing capabilities. Within a decade, all of Magnequench’s U.S. facilities were shut down, and China emerged as the dominant global player.

China flooded the global market with rare-earth exports at prices so low that they drove competitors — including those in the U.S. — out of business. By 2022, China not only controlled the bulk of rare-earth mining but had also become the unrivaled leader in processing and refining — the most technically challenging and valuable part of the supply chain.

In a twist of strategic foresight, China in recent years passed laws preventing the export of its REE processing technologies — a move that mirrored the U.S.’s mistake in the 1990s, but with far greater control.

Why It Matters Now

The consequences of this 30-year shift are now clear: China holds a near-monopoly over the global rare-earth industry, giving it extraordinary leverage in trade and geopolitics. In the event of diplomatic tensions, China can restrict exports of REEs — an action that could stall production lines for electric vehicles, wind turbines, semiconductors, and even advanced military equipment.

That’s why the U.S. government is now trying to revive its domestic rare earth industry. The Trump administration took initial steps in this direction, proposing a 15% stake in MP Materials, which operates the only rare earth mine currently active in the U.S. (at Mountain Pass, California). It also considered setting a price floor to prevent low-cost Chinese imports from undercutting U.S. producers.

However, mining is only part of the equation. Today, even if rare earths are mined in America, they are often shipped overseas for processing — mostly to China.

Rebuilding a Supply Chain

After years of neglect, the U.S. and allied nations are now working to rebuild rare earth processing capabilities. This includes government funding for critical mineral facilities, partnerships with countries like Australia and Canada, and incentives for private companies to invest in refining and magnet-making technologies.

Still, the road to independence will be long. Experts warn that it could take a decade or more to re-establish a fully domestic rare earth supply chain. In the meantime, global industries remain vulnerable to supply disruptions.

Final Thoughts

Rare earth elements may be hidden in plain sight, but their importance cannot be overstated. They are the building blocks of modern technology — and the cornerstone of future innovations in energy, defense, and healthcare.

As the world grapples with securing these critical materials, the story of how China rose to dominance offers a stark lesson in the consequences of overlooking strategic resources. Whether the U.S. and its allies can catch up remains to be seen — but the race is on.