Officer and Director Stock Transaction

Tyler Michael Wong, Chief Financial Officer of U.S. GoldMining Inc., reported a transaction on September 16, 2026. He acquired 250 shares of Common Stock and disposed of 250 Restricted Stock Units. The Restricted Stock Units vest in four equal installments, with 25% vesting three months from the grant date of December 16, 2025, and the remaining 75% vesting at six, nine, and twelve months post-grant. Each Restricted Stock Unit represents the right to receive one share of common stock upon settlement. Following these transactions, Mr. Wong directly owns 1750 shares of common stock and 250 Restricted Stock Units.