Wheaton Precious Metals International Ltd.

RIO2 ANNOUNCES RECEIPT OF US$50 MILLION FROM WHEATON PRECIOUS METALS

For Immediate Release November 3, 2025 VANCOUVER, BC - Rio2 Limited (“ Rio2 ” or “ the Company ”) (TSX: RIO; OTCQX: RIOFF; BVL: RIO) announces that, further to its news releases dated November 16, 2021, March 29, 2022, October 21, 2024, March 24, 2025, and July 25, 2025, it has received a fourth and final deposit payment of US$50,000,000 (the “ Fourth Deposit ”) from Wheaton Precious Metals International Ltd. (“ WPMI ”) in connection with the previously announced amended and restated...