5E Advanced Materials Signs Indication Of Interest For The Purchase Of Boric Acid And Calcium Sulphate Products

Output would be from the Company's Fort Cady Integrated Boron Facility.

This marks the Company's second commercial milestone in two months, further demonstrating growing customer demand.

Highlights Include: Signing of an indication of interest with a domestic industrial end-user - The IOI outlines the preliminary interest of a U.S.-based industrial customer in purchasing boric acid and calcium sulphate products from 5E, contemplating a 5-year term with an annual minimum offtake volume of approximately 3,750 short tons of boric acid and calcium sulphate and a maximum offtake volume of approximately 4,500 short tons of both products, at a fixed price subject to an annual escalation.

The arrangement is subject to satisfactory evaluation of product quality and specifications, evidence of consistent production capability, and the negotiation and execution of a definitive purchase agreement.

Continued validation of 5E's product and growing commercial pipeline - The IOI follows the first offtake heads of agreement, a 10-year term agreement with a domestic industrial customer, announced in May 2026, and reflects ongoing momentum from 5E's customer engagement efforts across multiple industrial end markets.

Advancing toward additional definitive commercial agreements - 5E continues to advance discussions with this and other prospective customers, with the goal of converting non-binding indications of interest and heads of agreement into definitive, binding offtake agreements that support the Fort Cady Project's path toward a Final Investment Decision.

Reinforcing demand for a resilient domestic boron supply chain - Management believes the continued interest from industrial end-users further validates the urgent need for a reliable, U.S.-based supplier of boric acid and specialty boron derivative products amid ongoing supply chain constraints.