ATEX’s board has appointed long‐time director Chris Beer as Interim President and Chief Executive Officer following the resignation of Ben Pullinger for personal reasons. Beer, who joined the board in June 2024, brings over 30 years of exploration and capital markets experience—including 25 years at RBC Global Asset Management as Managing Director and Senior Portfolio Manager—to the interim role. The board has launched a formal search for a permanent CEO, with Beer overseeing continuity at the Valeriano project and engaging with stakeholders during the transition.

Under Pullinger’s leadership since May 2024—and as Senior Vice President, Exploration and Business Development since May 2022—ATEX advanced Valeriano into one of Chile’s most significant emerging copper‐gold assets. The project hosts an Indicated Mineral Resource of 475 million tonnes at 0.88% copper equivalent (0.58% Cu, 0.25 g/t Au, 1.39 g/t Ag, 70.4 g/t Mo) and an Inferred Resource of 1,511 million tonnes at 0.75% CuEq (0.50% Cu, 0.20 g/t Au, 1.16 g/t Ag, 70.6 g/t Mo), all reported at a 0.35% Cu cutoff grade. These results cement ATEX’s position in the emerging Link Belt between the El Indio High‐Sulphidation Belt and the Maricunga Gold Porphyry Belt.

During Pullinger’s tenure, ATEX’s market capitalization climbed past US$1.3 billion, reflecting investor confidence in Valeriano’s scale and grade. Looking ahead, Beer has signaled his priorities: maintain project momentum, support the technical team in Chile and Canada, and ensure seamless operational continuity. The board’s CEO search will assess candidates with a track record of advancing large‐scale copper‐gold porphyries through prefeasibility and into development, with an eye toward delivering on ATEX’s growth objectives in the Link Belt region.