USA Rare Earth Says $1.55 Billion Capitalization Is in Place for Serra Verde Offtake

USA Rare Earth said the special-purpose vehicle set up to buy Serra Verde’s Phase 1 rare earth output has put a $1.55 billion capitalization structure in place, clearing an important condition tied to USA Rare Earth’s proposed acquisition of the Brazilian producer.

The package combines $750 million of U.S. government funding, a commitment from an unnamed Tier-1 institutional bank for a facility of up to $500 million, and at least $300 million of U.S. government forward purchases over five years. The distinction between those pieces is important: USA Rare Earth’s latest SEC filing says the $500 million bank facility has not yet been documented, closed or funded, even though the commitment letter is sufficient under the amended offtake terms to satisfy the relevant capitalization condition.

The $1.55 billion structure mixes government money with a bank commitment

The U.S. Department of War said Monday that its Economic Defense Unit, working with the Office of the Assistant Secretary of War for Industrial Base Policy, is providing a $750 million investment to US SIIE, LLC through the Industrial Base Analysis and Sustainment program. US SIIE is the vehicle that will purchase Serra Verde’s mixed rare earth carbonate under the offtake arrangement.

That $750 million is $250 million above the initial government capital investment contemplated in earlier disclosures. According to the Department of War, the broader $1.55 billion structure also includes a $300 million purchase commitment from the Defense Logistics Agency and a $500 million commitment from a money-center bank.

USA Rare Earth’s August 24 Form 8-K provides more detail on how those components work. The $750 million is to be invested under a profit participation agreement. The bank commitment covers a senior secured borrowing-base revolving credit facility intended to finance working capital for the SPV’s purchases from SV Management Switzerland, a Serra Verde subsidiary. The U.S. government has also entered into a contract to buy no less than $300 million of rare earth payable products from the SPV during the first five years following the date on which the offtake conditions take effect.

The filing also makes clear that the headline total should not be read as $1.55 billion of cash already funded. The $500 million senior facility remains subject to conditions, including definitive documentation and required approvals, and USA Rare Earth says it will not be funded on or before the Serra Verde merger closes. The bank commitment can terminate at the end of 2026, or earlier if the offtake is suspended, terminated or canceled, unless the facility closes first.

An August 21 amendment changed the financial-support condition in the offtake agreement to match the support now in place. Earlier terms contemplated a $500 million initial capital investment, a $500 million debt or inventory-monetization facility, and at least $300 million of government forward purchases. The amended version raises the government-funded component to $750 million and allows the $500 million facility requirement to be met by the bank commitment letter rather than a fully funded facility.

That amendment matters because satisfaction of the financial-support provision was one of the conditions USA Rare Earth and its merger subsidiary had to meet before completing the Serra Verde acquisition. The SEC filing says Serra Verde’s subsidiary has confirmed that this particular condition has been satisfied and not waived. Other offtake and merger conditions remain.

The offtake covers Serra Verde’s Phase 1 magnetic rare earth production

Serra Verde’s Pela Ema mine and processing plant in Minaçu, Goiás, produces mixed rare earth carbonate containing neodymium, praseodymium, dysprosium and terbium. Those four elements are used in high-performance permanent magnets, with dysprosium and terbium particularly important where magnets must retain performance at high temperatures.

The offtake is designed to cover 100% of Phase 1 production. Serra Verde has described the arrangement as a 15-year supply agreement with take-or-pay terms, minimum price floors for the four magnetic rare earths and a mechanism for sharing upside when realized prices exceed those floors. The reviewed public materials do not disclose the actual floor-price levels.

Those commercial protections are central to the structure. A price floor can reduce exposure to weak market pricing, while a take-or-pay commitment gives the producer greater certainty that contracted output will either be purchased or paid for under the agreement’s terms. That does not remove operating, pricing or counterparty risk, but it can make future cash flows more predictable than relying solely on spot sales.

Serra Verde said in the filing exhibit that the SPV is now required to begin accepting deliveries and that the company expects initial deliveries under the arrangement early in the fourth quarter of 2026. Its first stage of debottlenecking and optimization is in advanced commissioning, with ramp-up expected during the third quarter. The company expects the operation to reach a run-rate of about 4,000 metric tons per year of total rare earth oxide equivalent by the end of 2026, while a second stage is under construction and is expected to begin commissioning within 12 months.

The new SPV structure is separate from the $565 million financing that Serra Verde previously secured from the U.S. International Development Finance Corporation. DFC said that loan is intended to optimize and expand Pela Ema. Serra Verde has reported that $325 million was drawn in March and another $100 million in June under that facility.

More than $1 billion has already been invested in Serra Verde, according to USA Rare Earth. Commercial production at Pela Ema began in 2024. The operation is notable because it is an ionic-clay rare earth mine already in commercial production outside Asia, giving USA Rare Earth an operating upstream asset if the acquisition closes rather than another development-stage project.

The financing milestone moves attention to the August 28 shareholder vote

USA Rare Earth agreed in April to acquire 100% of Serra Verde for $300 million in cash plus 126,849,307 newly issued USA Rare Earth shares. Using USA Rare Earth’s April 17 closing price of $19.95, the companies initially described the consideration as implying an equity value of about $2.8 billion. Serra Verde securityholders are expected to own roughly 34% of the combined company after closing, based on the share counts disclosed in the proxy materials.

The acquisition is part of USA Rare Earth’s plan to link mining and processing with downstream metal, alloy and magnet production. The company already owns Less Common Metals in the United Kingdom, is developing magnet manufacturing capacity in Stillwater, Oklahoma, and controls the Round Top deposit in Texas. Serra Verde would add current production of the four magnetic rare earths at a time when U.S. policy is focused on reducing reliance on Chinese supply chains.

For the U.S. government, the Serra Verde arrangement is also a procurement and industrial-base measure rather than simply corporate financing. The Department of War said the materials are used in defense systems including aircraft, submarines, satellites, guided weapons and drones. The Defense Logistics Agency’s forward-purchase commitment creates a government buyer for part of the SPV’s output, while the profit-participation investment supplies capital to the purchasing vehicle.

One major corporate condition is still outstanding. USA Rare Earth has scheduled a virtual special meeting for August 28 at 10:00 a.m. Eastern Time, when shareholders will vote on the issuance of the 126.85 million shares required for the Serra Verde merger. The definitive proxy states that the merger cannot be completed unless shareholders approve that issuance.

USA Rare Earth said it expects the acquisition to close promptly after the meeting if the remaining conditions are satisfied or waived where permitted. The August 24 capitalization announcement therefore narrows the list of unresolved items, but it does not mean the Serra Verde acquisition has closed, nor does it mean the $500 million bank facility has been funded. The shareholder vote is the next concrete milestone.