Investors reacted positively, with Lynas shares rising 17% and Iluka’s increasing 25%, showing confidence in US commitments to purchase rare earths at premium prices.

The US government may provide up to $150 million in funding to Lynas for wastewater management and regulatory approvals, supporting its Texas project.

The partnership includes a $400 million equity stake and a $150 million loan to expand MP Materials' California mine and establish a new Texas magnet plant, projected to produce 10,000 metric tons annually by 2028.

The Pentagon has signed a multi-billion dollar deal with MP Materials, aiming to strengthen the US rare earth supply chain and reduce dependence on China, which currently controls 85% of global processing and has imposed export restrictions.

This move is benefiting Australian companies Lynas Rare Earths and Iluka Resources, as U.S. tariffs on Chinese imports and China's export controls create a scarcity premium for rare earths.

Lynas is investing $575 million in a Texas refinery to boost production, but rising costs and the need for NdPr prices above $60/kg threaten its profitability, especially amid permitting delays.

Iluka Resources is developing a $1.65 billion Eneabba refinery in Australia, with restrictions on future sales to China and a strong backing from the Australian government, though it faces some financial vulnerabilities.

The rare earth sector remains volatile due to geopolitical tensions, but its strategic importance suggests long-term investment potential, especially as the US seeks to disrupt China's dominance.

Lynas has secured 70% offtake agreements and long-term partnerships, but market skepticism persists, reflected in its low price-to-earnings ratio.

The US deal aims to challenge China's control over the supply chain, which is crucial for military manufacturing and national security.

Iluka is also expanding with a $500 million Western Australia refinery to process deposits from Australia and global partners, backed by a strong financial position.

Lynas operates in Western Australia and Malaysia and aims to build a Texas refinery, securing $288 million from the US Department of Defense, though permitting issues have slowed progress.