Rio Silver Amends Maria Norte Terms

Rio Silver Inc. (the "Company" or "Rio Silver") (TSX.V: RYO) (OTC: RYOOF) announces that, further to the announcement on May 1, 2025, it will consolidate (the "Consolidation") its common shares on the basis of five pre-Consolidation common shares for one post-Consolidation share.

The Company expects that the TSX Venture Exchange (the "Exchange") will issue a bulletin in short order, confirming that the Company's common shares will then commence trading on a post-Consolidation basis effective on or about the opening of trading on Thursday, July 3, 2025. There will be no change to the Company's name or trading symbol. The new CUSIP and ISIN numbers for the post-Consolidation shares are 76721A113 and CA76721A1131, respectively.

Rio Silver Inc. ("Rio Silver" or the "Company") (TSX.V: RYO) (OTC: RYOOF), announces shareholder approval for all matters at the AGM.

All resolutions presented at Rio Silver's annual general held on Thursday, June 19, 2025, including the election of directors, the ratification of the appointment of its auditor for the year ended December 31, 2024, the reappointment of its current auditor, the reapproval of the company's equity incentive plan and the approval for a share consolidation on a one-new-for-5-old basis. The name of the company has not been changed.

Rio Silver Inc. (the "Company") (TSX.V: RYO) (OTC: RYOOF) announces that, further to its announcement on March 26, 2025, it has received from the TSX Venture Exchange (the "Exchange") conditional acceptance (the "Conditional Approval") of the proposed transaction (the "Transaction") with Peruvian Metals Corp. for the acquisition of Mamaniña Exploraciones S.A.C.

The Company is working to satisfy the remaining conditions outlined in the Conditional Approval and will be making further announcements in respect thereof including without limitation the geological report prepared in accordance with National Instrument 43-101 and other items. The Transaction remains subject to the Exchange's final acceptance.

Rio Silver Inc. ("Rio Silver" or the "Company") (TSX.V: RYO) (OTC: RYOOF), announces that it has completed a definitive agreement (the "Option Agreement") with Magma Silver Corp. (TSX.V: MGMA) ("Magma Silver") for the sale (the "Transaction") of the Niñobamba Au-Ag property ("Niñobamba" or the "Project").

Under the terms of the Option Agreement, Magma Silver has the right to earn a 100% interest in the Project upon full exercise of the option. The Option Agreement requires Magma Silver to make payments of an aggregate CAD$260,000, of which CAD$160,000 of that amount has been paid. Magma Silver will make further milestone payments of up to US$2,000,000, US$500,000 of which will constitute advanced royalty payments and will be paid over the next five years, deductible from the net smelter return royalty of 2% granted to Rio Silver. Magma Silver retains the right to buy back 1% of the NSR for US$1,000,000 at any time prior to commercial production on the Project. The Option Agreement also requires Magma Silver to issue to Rio Silver a total of 2,500,000 common shares of Magma Silver upon receipt of regulatory approval, and a further 2,500,000 common shares on the first anniversary of the approval date.

Rio Silver Inc. ("Rio Silver" or the "Company") (TSX.V: RYO) (OTC: RYOOF) announces that it has appointed Eric H. Hinton, P.Eng., FCIM, to the Advisory Board.

Eric H. Hinton, P.Eng., FCIM, has degrees from Haileybury School of Mines, Queen's University and Laurentian University and is a registered professional engineer in Ontario and Manitoba. Eric is a Fellow of the Canadian Institute of Mining, Metallurgy and Petroleum and is also designated as a Qualified Person in underground mining from the Mining and Metallurgical Society of America in addition to a qualified person for National Instrument 43-101. Eric's experience in small scale mining operations (from 50 to 500 tonnes per day) led him to acquire Basic Minerals SAC in Peru to launch the Mercedes Project which will become a 25000 tonne per annum polymetallic producer. His expertise will enable Rio Silver to engage in projects similar to Mercedes such as the recently acquired Maria Norte project, also in Peru, in order to potentially realize positive cashflow in the short term.