5E Advanced Materials Says Domestic LCD Glass Manufacturer Commences Testing With 5E's Boric Acid Being Dispatched Into Glass Furnace; Results Expected Before Year-End

Customer Initiates Product Testing with Glass Furnace Receiving First Batch of 5E Boric Acid; Results Expected Before Year-end

HESPERIA, CA / ACCESS Newswire / December 9, 2025 / 5E Advanced Materials, Inc. ("5E" or the "Company") (NASDAQ:FEAM)(ASX:5EA), a U.S. development-stage company focused on becoming a vertically integrated global leader and supplier of refined borates and advanced boron derivative materials, today announced that the major domestic LCD glass manufacturer, to which 5E shipped twenty tons of borates, has commenced testing with 5E's boric acid being dispatched into the glass furnace.