The United States and Australia have announced plans to provide up to $600 million in financial backing for a major rare earths refinery project, marking one of the most concrete steps yet under their growing critical minerals partnership. The funding commitment highlights increasing efforts by both nations to secure supply chains vital to defense, clean energy, and advanced manufacturing.
According to a joint statement, Export Finance Australia and the US Export-Import Bank issued coordinated letters of support for the project, each offering up to A$424 million in potential financing. The initiative is led by Tronox Holdings and will span operations in both Australia and the United States.
The proposed refinery is expected to leverage existing mining and processing infrastructure to produce mixed rare earth carbonate, a key material containing both light and heavy rare earth elements. These resources are essential for a wide range of applications, including military systems, renewable energy technologies, and high-tech manufacturing, making them strategically important in the global economy.
In addition to the refinery project, the two agencies also signaled potential support for another major resource development. Letters of interest of up to A$500 million each were issued for the Kalgoorlie Nickel Project, operated by Ardea Resources Ltd. in Western Australia. The project is reported to hold the largest nickel-cobalt resource in the country, further underscoring its significance in the production of batteries and other critical technologies.
These announcements are part of a broader initiative by Washington and Canberra to strengthen cooperation on critical minerals. The effort builds on a framework agreement signed at the White House last year, reflecting a shared strategy to diversify supply chains and reduce dependence on dominant global suppliers.

