U.S. GoldMining Inc. has completed 11 diamond core drill holes covering more than 5,000 meters across eight targets in the Whistler Orbit area of its Whistler Gold-Copper Project in Alaska. Drilling remains active with two rigs and is described as safe, on schedule and on budget, with initial assay results expected in the coming weeks. The company is also conducting mapping, geochemical sampling and prospecting at Snow Ridge, Long Lake Hills, Muddy Creek and Island Mountain as part of a district-scale strategy to identify additional porphyry deposits. The fully funded 2026 program is intended to build on the project's March 2, 2026 preliminary economic assessment (PEA), which used only estimated indicated mineral resources from the main Whistler deposit and modelled an after-tax net present value of $2.0 billion at a 5% discount rate, a 33% internal rate of return and initial payback of 2.1 years at base-case prices. On August 24, 2026, the company hosted Representative Brian Babin, Representative Celeste Maloy, Representative Jeff Hurd and Representative Pete Stauber, along with senior congressional staff, during a Western Caucus Foundation field tour. The visit focused on Whistler's potential contribution to U.S. critical-mineral security, domestic supply-chain resilience and infrastructure development, including the proposed West Susitna Access Road. U.S. GoldMining is also advancing stakeholder engagement, permitting preparation, local hiring, safety and environmental stewardship across the Matanuska-Susitna Borough and neighboring Native communities.