Stockpiling the Choke Points: Inside Europe’s New Geography of Material Security

From Rotterdam to Trieste, the EU is moving toward joint strategic reserves for tungsten and gallium. Why the question has shifted from asset price to physical availability.

Critical minerals have become the language of geopolitics again

A few years ago, the phrase “critical minerals” sounded narrow and technical. It seemed like a topic for geologists, battery specialists or government reports. But the past few days have shown again that critical materials are now part of diplomacy, industrial policy and national security.

Reuters reported on May 22 that China had effectively cut Japan off from several heavy rare earths and gallium for at least 4 months. The materials include dysprosium, terbium, yttrium oxide and gallium. They are used in magnet-making, aerospace, defense and chip-making.

This story matters not only because of the conflict itself. It also echoes 2010, when rare earths became a pressure point between China and Japan. But today, dependence on these materials is much broader. In 2026, this is not just about electronics. It is EVs, defense systems, precision manufacturing, magnets, semiconductors, aerospace and part of AI-related infrastructure.

One of the most interesting numbers in the report is that Lynas produced only 8 metric tons of dysprosium and terbium in the first quarter of 2026, while China exported around 14 tons of those two materials to Japan every month in 2024. That shows how difficult it is to quickly replace Chinese supply, even after years of diversification.

There is no need to make dramatic conclusions here. The simple point is enough: if a country controls processing or exports of a narrow group of materials, it gains leverage over entire industries. Sometimes one small component in the supply chain can matter much more than it seems.

Europe is also moving toward more practical solutions. Reuters reported on May 20 that the EU selected tungsten, rare earths and gallium for its first joint critical minerals stockpile. Magnesium, germanium and graphite are also being considered. Ten EU countries are involved in the planning, and possible storage hubs include Rotterdam, Porto Marghera and Trieste.

This is more than just a conversation about needing more resources. It is a shift in thinking. Many manufacturers and governments used to operate under the assumption that any needed material could always be bought on the global market. Now the question is different: what happens if supply stops for 3–6 months? What happens if price is no longer the main issue, and physical availability becomes the real problem?

Reuters also wrote on May 26 about another risk: if the West supports critical minerals too chaotically, it could create oversupply instead of shortage. The article noted that the US has already earmarked more than $20 billion, while Australia has committed at least A$13 billion for development and stockpiling projects. The rare earths sector was valued at about $6.4 billion in 2024.

That makes the topic even more interesting. Critical minerals are not a simple “shortage or surplus” story. They are about balance. Invest too little, and countries stay dependent. Invest chaotically and without coordination, and markets can become distorted. Do it carefully, and critical minerals can become part of a more stable industrial strategy.

For a neutral post, this is a strong angle. There is no need to mention stocks, tickers or price forecasts. It is enough to show that the modern economy depends on materials most people never see directly, but without which chips, power grids, defense systems and high-tech manufacturing do not work.