Throughout much of the 19th and 20th century, wars were fought over territory and access routes, whether by sea or by land. In some cases, conquests were driven by a lust for another’s resources in the ground, as was the case with Saddam Hussein’s invasion of Kuwait, for instance. But throughout that period, the idea of fighting over minerals might have seemed odd. Today, less so. As technology moves on, suddenly, the ‘rare earth’ metals needed to power the innovations of the 21st century are highly sought.
With these technological changes, supply chains are being reshaped, competition is intensifying, and underground resources are becoming a new currency of geopolitics. In the West, there is increasing unease over what many suspect is the ‘weaponisation’ of critical minerals. This was discussed at the finance ministers' meeting of the Group of Seven (G7) wealthy nations in Washington this month. Presented as a financial summit, the ministers emerged bullish. The time for tolerating structural imbalances in the global minerals market was over, they seemed to suggest.
The summit was chaired by US Treasury Secretary Scott Bessent and attended by the finance ministers of the UK, Canada, Japan, Germany, France, and Italy, as well as representatives from the European Union, Australia, India, South Korea, and Mexico. They discussed strengthening the security of the minerals needed for green technologies, weapons systems, and advanced electronics.
Strategic importance
The term ‘rare earth’ is a little misleading. In many cases, these materials are not rare because they are scarce, but because they are difficult to extract and process. China’s dominance in the critical minerals sector, in part, comes down to its ability to process them. Until recently, these minerals were being seen just like any other tradeable good. Today, however, they are no longer treated as a commercial matter, but as a challenge to economic security.
The elements are needed, for example, in the defence industry and for the green transition, both of which are major priorities in Europe. As such, market calculations get easily entangled with questions of sovereignty and national security. Pricing is increasingly treated as a strategic tool rather than a simple outcome of supply and demand.
Elements such as neodymium, dysprosium, and samarium are used in high-strength magnets for electric vehicles (EVs), wind turbines, smartphones, and defence technologies. Lithium, nickel, and cobalt are used in EV batteries and energy storage systems, so they are central to the green transition. Graphite, which is subject to strict Chinese export controls, is needed for battery anodes. Terbium is used in guided weapons, submarines, and high-resolution displays, while tantalum, gallium, and germanium are used in electronics and for renewable energy.
Concern over China’s dominance in production and refining is high, particularly after Beijing’s recent export restrictions affecting Japan. The countries represented in Washington all want to reduce reliance on Chinese supplies, but how? Proposals included minimum prices for rare earths (to counter undercutting and price manipulation), making investments in production outside China more attractive and profitable, expanding alternative sources through new partnerships, and accelerating domestic extraction and recycling.

On the same page
Although the meeting ended with no formal joint communiqué, ministers’ remarks offered a clear sense of direction. Bessent felt they were aligned on the need to address vulnerabilities quickly. German Vice Chancellor Lars Klingbeil mentioned minimum-price mechanisms and new partnerships. Japanese Finance Minister Satsuki Katayama stressed their broad agreement on the urgency.
Taken together, it points to a strategic shift away from passive observation towards active “de-risking”, such as building more resilient, independent supply chains. This builds on the G7’s Critical Minerals Action Plan, launched in June 2025, which itself builds on the Five-Point Plan for Critical Minerals Security, initiated in 2023.

