Final Short Form Base Shelf Prospectus and Prospectus Supplement are Accessible on SEDAR+

 Rua Gold Inc. (TSXV: RUA) (OTCQB: NZAUF) (WKN: A40QYC) (‘ Rua Gold ‘ or the ‘ Company ‘) announces that, further to its news release of June 16, 2025 it has filed a prospectus supplement dated June 18, 2025 (the ‘ Prospectus Supplement ‘) to its final short form base shelf prospectus dated July 11, 2024 (as supplemented by the Prospectus Supplement, the ‘ Prospectus ‘) with the securities commissions in each of the provinces and territories of Canada except Quebec in connection with its public offering of up to 10,500,000 common shares in the capital of the Company (each, a ‘ Common Share ‘) at a price of C$0.70 per Common Share (the ‘ Offering Price ‘) for aggregate gross proceeds of up to C$7,350,000 (the ‘ Public Offering ‘).  In addition to the Public Offering, the Company will be completing a contemporaneous private placement (the ‘ Private Placement ‘) of up to 8,200,000 Common Shares at the Offering Price for aggregate gross proceeds of up to C$5,740,000 (the ‘ Private Placement ‘ and with the Public Offering, the ‘ Offering ‘). Cormark Securities Inc. and Red Cloud Securities Inc. (the ‘ Co-Lead Agents ‘) are acting as co-lead agents on a ‘best efforts’ agency basis in connection with the Offering.

The Offering is expected to close on or about June 26, 2025 (the ‘ Closing Date ‘), or such other date as agreed upon between the Company and the Co-Lead Agents, and is subject to certain conditions including, but not limited to the receipt of all necessary regulatory approvals.

The Company has granted to the Agents an option (the ‘ Over-Allotment Option ‘) exercisable, in whole or in part, prior to the Closing Date to arrange for the sale of, at the Offering Price, up to 1,014,450 additional Common Shares for market stabilization purposes and to cover over-allotments, if any.

The Company intends to use the net proceeds from the Offering for continuing the exploration program on its New Zealand properties, and for general working capital and general corporate purposes.

The Private Placement will be completed pursuant to applicable exemptions from the prospectus requirements in all of the Provinces of Canada . The Common Shares issued pursuant to the Private Placement will be subject to a statutory hold period in Canada expiring four months and one day following the Closing Date. The Common Shares may also be sold in the United States on a private placement basis pursuant to available exemptions from the registration requirements of the United States Securities Act of 1933, as amended (the ‘ U.S. Securities Act ‘) and applicable U.S. state securities laws, and other jurisdictions outside of Canada and the United States pursuant to available prospectus or registration exemptions in accordance with applicable laws provided that no prospectus, registration statement or similar document is required to be filed in such jurisdiction.

Prospectus is Accessible through SEDAR+

Access to the Prospectus and any amendment thereto is provided, and delivery thereof will be satisfied, in accordance with the ‘access equals delivery’ provisions of applicable securities legislation. The Prospectus is accessible on the Company’s profile at SEDAR+ at www.sedarplus.ca . An electronic or paper copy of the Prospectus and any amendment to the documents may be obtained, without charge, from Cormark Securities Inc. by phone at (416) 362-7485 or email at ecm@cormark.com , by providing the contact with an email address or address, as applicable. Prospective investors should read the Prospectus in its entirety before making an investment decision.

The securities referred to in this news release have not been, nor will they be, registered under the U.S. Securities Act or any U.S. state securities laws, and may not be offered or sold within the United States or to, or for the account or benefit of, U.S. persons absent U.S. registration or an applicable exemption from the U.S. registration requirements. This news release does not constitute an offer for sale of securities, nor a solicitation for offers to buy any securities in the United States , nor in any other jurisdiction in which such offer, solicitation or sale would be unlawful. ‘United States’ and ‘U.S. person’ are as defined in Regulation S under the U.S. Securities Act.

About Rua Gold

Rua Gold is an exploration company, strategically focused on New Zealand . With decades of expertise, our team has successfully taken major discoveries into producing world-class mines across multiple continents. The team is now focused on maximizing the asset potential of Rua Gold’s two highly prospective high-grade gold projects.

The Company controls the Reefton Gold District as the dominant landholder in the Reefton Goldfield on New Zealand’s South Island with over 120,000 hectares of tenements, in a district that historically produced over 2Moz of gold grading between 9 and 50g/t.

The Company’s Glamorgan Project solidifies Rua Gold’s position as a leading high-grade gold explorer on New Zealand’s North Island. This highly prospective project is located within the North Islands’ Hauraki district, a region that has produced an impressive 15Moz of gold and 60Moz of silver. Glamorgan is adjacent to OceanaGold Corporation’s biggest gold mining project, Wharekirauponga.

For further information, please refer to the Company’s disclosure record on SEDAR+ at www.sedarplus.ca .

This news release includes certain statements that may be deemed ‘forward-looking statements’. All statements in this news release, other than statements of historical facts, that address events or developments that the Company expects to occur, are forward-looking statements. Forward-looking statements are statements that are not historical facts and are generally, but not always, identified by the words ‘expects’, ‘plans’, ‘anticipates’, ‘believes’, ‘intends’, ‘estimates’, ‘projects’, ‘potential’ and similar expressions, or that events or conditions ‘will’, ‘would’, ‘may’, ‘could’ or ‘should’ occur and specifically include statements regarding: the use of proceeds from the Offering, the size of the Offering, the timing of the Closing Date and completion of the Offering, the exercise of the Over-Allotment Option, the receipt of all necessary regulatory approvals; the Company’s strategies, expectations, planned operations or future actions, including but not limited to exploration programs at its Reefton and Glamorgan projects and the results thereof. Although the Company believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results may differ materially from those in the forward-looking statement.

Investors are cautioned that any such forward-looking statements are not guarantees of future performance and actual results or developments may differ materially from those projected in the forward-looking statements. A variety of inherent risks, uncertainties and factors, many of which are beyond the Company’s control, affect the operations, performance and results of the Company and its business, and could cause actual events or results to differ materially from estimated or anticipated events or results expressed or implied by forward looking statements. Some of these risks, uncertainties and factors include: general business, economic, competitive, political and social uncertainties; risks related to the effects of the Russia – Ukraine war; risks related to climate change; operational risks in exploration, delays or changes in plans with respect to exploration projects or capital expenditures; the actual results of current exploration activities; conclusions of economic evaluations; changes in project parameters as plans continue to be refined; changes in labour costs and other costs and expenses or equipment or processes to operate as anticipated, accidents, labour disputes and other risks of the mining industry, including but not limited to environmental hazards, flooding or unfavorable operating conditions and losses, insurrection or war, delays in obtaining governmental approvals or financing, and commodity prices. This list is not exhaustive of the factors that may affect any of the Company’s forward-looking statements and reference should also be made to the Company’s short form base shelf prospectus dated July 11, 2024 , and the documents incorporated by reference therein, filed under its SEDAR+ profile at www.sedarplus.ca for a description of additional risk factors.

Forward-looking statements are based on the beliefs, estimates and opinions of the Company’s management on the date the statements are made. Except as required by applicable securities laws, the Company undertakes no obligation to update these forward-looking statements in the event that management’s beliefs, estimates or opinions, or other factors, should change.

NEITHER THE TSX VENTURE EXCHANGE NOR ITS REGULATION SERVICES PROVIDER (AS THAT TERM IS DEFINED IN THE POLICIES OF THE TSX VENTURE EXCHANGE) ACCEPTS RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS RELEASE.

SOURCE Rua Gold Inc.

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