Global Scramble for Critical Minerals Fuels Diplomatic Frictions

The US is escalating its push to secure access to critical minerals through trade deals and diplomatic pressure as competition with China intensifies, but the strategy is increasingly meeting resistance from resource-rich countries seeking greater control over their reserves.

The latest friction has emerged in Zambia, where more than 90 public health and development organizations urged US Secretary of State Marco Rubio to reject reports that Washington could link HIV and medical aid to negotiations over a critical minerals agreement.

An estimated 1.3 million Zambians receive treatment under the President’s Emergency Plan for AIDS Relief, alongside broader US-funded programs targeting malaria and tuberculosis.

In a March 26 letter, advocacy groups warned that conditioning such assistance on minerals access would be “ethically indefensible” and risk deepening poverty and instability.

Once largely the domain of commercial negotiations, critical minerals are becoming embedded in geopolitical strategy, as governments compete to secure inputs essential for energy systems, defense technologies, and advanced manufacturing.

Washington has accelerated its efforts in recent months. At a critical minerals ministerial in Washington this week, attended by representatives from 54 countries and the European Union, US officials outlined plans to build a preferential trade bloc aimed at countering China’s dominance in supply chains.

The initiative includes coordinated pricing mechanisms, with policymakers seeking to establish reference price floors to prevent what they describe as market distortions caused by subsidized supply.

“We will establish reference prices for critical minerals at each stage of production,” Vice President JD Vance said. “For members of the preferential zone, these reference prices will operate as a floor maintained through adjustable tariffs to uphold pricing integrity.”

Rubio, who hosted the ministerial, also announced the formation of the Forum on Resource Geostrategic Engagement, or FORGE, a platform designed to align policy, financing and project development across partner countries.

“We have a number of countries that have signed on to that, and many more that we hope will do so… the purpose of FORGE is to foster collaboration and to build a network of partners across the world,” Rubio said.

The US has already signed critical minerals agreements with 11 countries and completed negotiations with an additional 17, according to officials.

The push extends beyond diplomacy. President Donald Trump this week unveiled Project Vault, a US$12 billion strategic reserve backed by US $10 billion from the Export-Import Bank and US$2 billion in private funding.

The stockpile is intended to stabilize prices and support domestic manufacturers, and will include materials such as rare earths, lithium and copper.

Yet the US approach is encountering pushback in countries that control key reserves.

In Brazil, which holds between 19 and 23…