ANCHORAGE, Alaska, June 2, 2025 – U.S. GoldMining Inc. (NASDAQ: USGO) (referred to as “U.S. GoldMining” or the “Company“) is pleased to announce its inclusion in the Russell 3000^® Index, a broad market index. This follows a preliminary list published by FTSE on its website related to the index’s annual review. The change is expected to take effect after the U.S. Market closes on June 27, 2025.

The Russell US indexes are reviewed annually, capturing the 4,000 largest US stocks as of April 30, ranked by their total market capitalization. Being a member of the Russell 3000^® Index for a year means automatic inclusion in either the large-cap Russell 1000^® Index or the small-cap Russell 2000^® Index, along with relevant growth and value style indexes. FTSE Russell determines membership in its Russell indexes mainly through objective market-capitalization rankings and style attributes.

Investment managers and institutional investors widely use Russell indexes for index funds and as benchmarks for active investment strategies. According to data from the end of June 2024, approximately $10.6 trillion in assets are benchmarked against the Russell US indexes, which are part of FTSE Russell, a global index provider.

Tim Smith, Chief Executive Officer of U.S. GoldMining, stated: “The preliminary inclusion in the Russell 3000^® Index is a significant recognition of U.S. GoldMining’s accomplishments. This highlights the value creation at our Whistler Gold-Copper Project (the “Project”) in Alaska in the short time since our IPO in April 2023. The numerous high-priority exploration targets at the Project, combined with the recently announced plans to start an initial economic assessment, give us strong encouragement about the potential to unlock substantial additional value for stakeholders. This is especially true given recent record-high gold prices and the predicted strong future demand for copper.”

For further details on the Russell 3000^® Index and the Russell indexes reconstitution, please visit the “Russell Reconstitution” section on their website.

About U.S. GoldMining Inc.

U.S. GoldMining Inc. is an exploration and development company dedicated to advancing its 100%-owned Whistler Gold-Copper Project, located 105 miles (170 kilometers) northwest of Anchorage, Alaska, U.S.A. The Whistler Project comprises several gold-copper porphyry deposits and exploration targets within a large regional land package consisting entirely of State of Alaska mining claims, totaling about 53,700 acres (217.5 square kilometers). The Whistler Project Mineral Resource Estimate includes 294 Mt at 0.68 g/t AuEq for 6.48 Moz AuEq Indicated, plus 198 Mt at 0.65 g/t AuEq for 4.16 Moz AuEq Inferred.

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Forward-Looking Statements

Except for historical facts, the information in this news release contains “forward-looking statements” under United States federal securities laws and “forward-looking information” under applicable Canadian securities laws (collectively, “forward-looking statements”). These statements include the Company’s expectations regarding the Project and its inclusion in the Russell 3000 index. Words such as “expects”, “anticipates”, “plans”, “estimates”, and “intends” or similar words identify forward-looking statements. These statements are based on U.S. GoldMining’s current expectations and are subject to uncertainties, risks, and assumptions that are hard to predict. They involve known and unknown risks, uncertainties, and other factors that could cause the Company’s actual results, performance, or achievements to differ materially from any future results, performance, or achievements expressed or implied by these statements. Such risks include the possibility that future exploration results may not confirm expectations, variations in assumptions related to mineral resource estimation or realization, the availability of funding, accidents, labor disputes, and other mining industry risks, including environmental risks, delays in obtaining approvals or permits, title disputes, and other risks inherent in mineral exploration and development, as well as other risk factors in the Company’s filings with the U.S. Securities and Exchange Commission at and Canadian Securities Administrators at . While the Company has tried to identify important factors that could cause actual actions, events, or results to differ materially from those described in forward-looking statements, other factors may cause actions, events, or results to differ from what is anticipated, estimated, or intended. Therefore, readers should not rely unduly on these forward-looking statements, which are made as of this date. U.S. GoldMining does not undertake any duty to update this information, except as required by law.

SOURCE U.S. GoldMining Inc.

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