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5E Advanced Materials Completes Transformational Acquisition of Searles Valley Minerals and Announces Shareholder Update Call Acquisition Transforms 5E into a Revenue - Generating U.S. Producer of Boron and Critical Industrial Minerals Shareholder Update Call Scheduled for Tuesday , October 6 at 4:30 p.m. Eastern Time HESPERIA , CA / ACCESS Newswire / October 2 , 2026 / 5E Advanced Materials , Inc. ( " 5E " or the " Company " ) ( NASDAQ : FEAM ) announces that it has completed its previously announced acquisition of the assets and operations of Searles Valley Minerals ( " Searles Valley " ) through a court - supervised sale process under Section 363 of the U.S. Bankruptcy Code . The closing marks a transformational milestone , transitioning the Company from a pre - revenue developer to a revenue - generating U.S. producer of boron and critical industrial minerals . Searles Valley is an established industrial and critical minerals operation in Trona , California , with more than 150 years of production history and extensive processing , infrastructure and logistics assets . The acquisition brings Searles Valley together with 5E's Fort Cady Boron Project , creating an integrated Southern California boron platform with near - term production and long - term growth potential . " This is a transformational moment for 5E and our shareholders , " said Paul Weibel , Chief Executive Officer of 5E Advanced Materials . " With the closing of this acquisition , we are moving immediately into execution . Our focus is on optimizing the Searles Valley operations , rebuilding borate production and positioning 5E to serve growing demand for secure , domestically produced boron and critical materials . We look forward to discussing the transaction , our operating plan and the opportunities ahead with shareholders next week . " Shareholder Update Call 5E will host a special shareholder conference call on Tuesday , October 6 , 2026 , at 4:30 p.m. Eastern Time to discuss the completed acquisition and the Company's plans for Searles Valley . During the webcast and teleconference , Chief Executive Officer Paul Weibel will provide investors and analysts with a closer look at the Searles Valley acquisition and what it means for the next phase of 5E . Supported by an investor presentation , management will outline how the acquisition transforms 5E from a pre - revenue developer into a revenue - generating U.S. producer , introduce the Searles Valley operations and discuss the Company's plan to drive value through pricing , cost and volume initiatives . Management will also highlight the additional growth opportunities within the acquired asset base and discuss how Searles Valley and Fort Cady together position 5E to build a larger , integrated U.S. boron and critical minerals platform . A live question - and - answer session with analysts and investors will follow the presentation . Participants may also submit questions in advance by emailing FEAM@haydenir.com . Event Details • Event : 5E Advanced Materials Shareholder Update : Searles Valley Minerals Acquisition