5E Advanced Materials Signs Third Offtake Heads of Agreement for Fort Cady

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Latest Agreement with U.S. Cellulose Insulation Company Further Builds on Commercial Momentum and Supports Fort Cady's Path to Bankability HESPERIA, CA / ACCESS Newswire / July 7, 2026 / 5E Advanced Materials, Inc. ("5E" or the "Company") (NASDAQ:FEAM), a company focused on becoming a vertically integrated global leader and supplier of refined borates and advanced boron derivative materials, today announced it has signed an offtake heads of agreement ("HOA") with a domestic cellulose insulation company for the purchase of boric acid and calcium sulphate products from the Company's Fort Cady Integrated Boron Facility in Southern California. Boric acid is a required fire-retardant additive in virtually all cellulose insulation, and the agreement signals a domestic manufacturer is moving to lock in a U.S.-based supply source ahead of Fort Cady's full-scale production. This is the third commercial offtake milestone 5E Advanced Materials has announced in approximately 60 days, following an offtake HOA signed in May 2026 with a domestic industrial manufacturer and a non-binding indication of interest signed with a second domestic industrial end-user. Combined, the agreements and indications of interest signed to date span multiple market segments and end-use markets, supporting Fort Cady's project financing discussions. "Announcing our third commercial milestone in as many months reflects the momentum we are building as we execute our commercialization strategy for Fort Cady," said Paul Weibel, Chief Executive Officer. "The continued signing of offtake agreements and indications of interest across multiple domestic end markets, including established industrial users and emerging growth companies, demonstrates both the quality of our boric acid product and the urgent demand for a reliable domestic supply chain. Boric acid is a critical input for maintaining fire efficacy in cellulose insulation, and this HOA further strengthens Fort Cady's commercial readiness and the role we can play in enabling new domestic manufacturing capacity." Commercial pipeline to date: Recent Business Highlights include:

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