USA Rare Earth Completes Serra Verde Merger Amid New Brazil Rules

USA Rare Earth completed its merger with Serra Verde on 3 September 2026, finalizing the transaction thirteen days before Brazil’s new strategic minerals law entered into force. The deal involved a cash payment of $300 million and the issuance of 126,849,307 shares. This timing places the acquisition ahead of the new regulatory framework rather than subject to its immediate approval processes, as reported by GN auto stocks materials on rare earths.

The transaction is embedded in a broader U.S. public finance structure supporting the asset. The U.S. International Development Finance Corporation committed up to $565 million to Serra Verde. Additionally, the U.S. Department of War announced a $750 million investment into a special-purpose vehicle supporting Serra Verde’s offtake, accompanied by a $300 million Defense Logistics Agency purchase commitment and $500 million in bank financing.

Offtake Agreement Locks In Production

Company filings describe an agreement committing 100% of Phase I production to a U.S.-backed special-purpose vehicle. This covers neodymium, praseodymium, dysprosium, and terbium-containing mixed rare-earth carbonate. The contract includes minimum price floors and extends until the earlier of delivery from 198 million metric tons of run-of-mine ore or twenty years after commercial operations commence.

Brazil Enacts New Screening Regime

Brazil responded by enacting Law No. 15,506 and implementing Decree No. 13,118. These measures empower the new CIMCE structure to scrutinize changes in corporate control, significant foreign participation, and international supply contracts affecting economic or geopolitical security. The regime also covers transfers or encumbrances involving mineral rights, creating a new legal environment for subsequent transactions.

The decree preserves validly completed administrative acts in proceedings transferred to the new system. Neither the statute nor the decree expressly states that completed pre-enactment corporate transactions automatically require retroactive re-authorisation. This distinction is crucial for understanding the legal status of the September merger.

Strategic Focus Shifts To Value

The strategic judgment is that Brazil is not simply an object of U.S. mineral acquisition policy. It has become a jurisdiction where U.S. state capital, defense procurement, private ownership, and long-duration offtake confront a newly institutionalized Brazilian sovereignty and industrialization policy. The resulting contest is likely to concern the conditions governing production, export, processing, future ownership changes, and domestic value addition rather than an uncomplicated reversal of the transaction.