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Vancouver, Canada – TheNewswire – July 7th, 2025 - Radius Gold Inc. (TSXV: RDU) ("Radius" or the "Company") is pleased to announce that it has received permits for drilling at its 100%-owned Tierra Roja copper project. In parallel, results from the recently completed induced polarization (IP) and resistivity geophysical surveys have defined a large coherent zone of high resistive and high chargeable material at depth below the copper mineralization defined by surface mapping and sampling. The combination of significant surface copper oxide copper mineralization, hosted in highly altered (silica, sericite) intrusive and volcanics, with a large resistive and chargeable geophysics response at depth define compelling drill targets.

Bruce Smith, President and CEO of Radius Gold, commented:

"With drill permits in hand and compelling geophysical targets now defined, Radius looks forward to commencing the first-ever drill program at Tierra Roja. The IP results align well with our surface mapping and sampling, and we believe Tierra Roja has the potential to host a significant copper discovery and look forward to the start of drilling."

The Phase 1 drill program is expected to commence Q3 and will test geophysical targets, located directly below outcropping alteration and copper oxide mineralisation. See figures 1 to 4.

About the IP/Resistivity Survey

The IP/Resistivity consisted of 3 NS orientated lines, total 4.8km surveyed covering the core 800m diameter system. Initial interpretation indicates a broad and coincident resistivity and chargeable anomaly dipping south to depth from the main out cropping copper oxide mineralised zones. The geophysical chargeable and resistive anomaly is consistent line to line across 500m of tested strike extension.

Figure 1: IP/Resistivity plan view at 1500masl (approximately 250m below surface) with 2D IP and Resistivity cross-sections of central line 632200E. Note almost co-incident chargeable and resistive anomalies. Chargeable anomaly is approximately 3X greater than background and is consistent line to line across 500m. Proposed drill hole depicted.

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Figure 2: IP 3D Inversion on central line 632200E showing chargeable anomaly 3 times background levels, below copper mineralisation at surface. Proposed drill hole depicted.

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Figure 3: 3D Chargeability view looking east at Tierra Roja with transparent topography and rock chip geochemistry, showing relative position of three lines and consistency of chargeable anomaly across 500m.

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Geological Interpretation

Radius has now completed detailed geological mapping at Tierra Roja, along with geochemistry and both magnetic and IP/Resistivity surveys. Several zones of structurally controlled EW oriented zones intense silica, sericite dominant alteration between 50 to 150m wide are associated with copper mineralisation. Higher grade (+2% Cu) are often completely brecciated and replaced by silica. The larger zones of intense alteration are surrounded by wide zones of moderate to weak alteration and then relatively fresh rock. The outer margins of the system have chlorite epidote alteration. Mineralization occurs as copper oxides, dominantly malachite, chrysocolla, and atacamite hosted within structures and broadly disseminated. The host rocks regionally are andesitic volcanics estimated Jurassic age. The core of the target is comprised of a multi-phase intrusive complex dominantly of dacite composition, but also andesite and quartz-feldspar porphyry, estimated Cretaceous age. There is widespread faulting, brecciation and replacement of large areas (50 to 150m wide) by silica sericite alteration.

The origins of the intense alteration and copper oxide mineralization observed at surface are uncertain. Drilling is required. There has been some debate amongst our experienced Peruvian team and several visitors to the project as to whether the observed characteristics are related to porphyry copper or IOCG mineralisation. Tierra Roja lies 120km south of the large IOCG deposits Mina Justa, Marcona, Pampa de Pongo and further north Mina Raul Contestable. 200km south of Tierra Roja occur very large porphyry copper deposits in La Tapada, Tia Maria, Cerro Verde, Chapi etc.

Tierra Roja has a significant scale alteration system, abundant copper oxide mineralisation occurring over a large area, a strong co-incident IP - chargeable and resistivity anomaly extending to depth below the outcropping alteration and mineralization and has never been drill tested. The Radius team looks forward to drilling this compelling target.

Figure 3 Tierra Roja detailed alteration mapping with copper grades over 1% depicted.

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Drill Permits

Radius local subsidiary in Peru has been grantedFTA (Ficha Técnica Ambiental) authorizations that approves drilling and the construction of 20 drill pads and access roads. From each platform several drillholes can be completed. The FTA also covers land access and in the case of Tierra Roja, the land is federally owned with no registered occupants and access approved. There is no drilling water available on-site and water will need to be purchased and trucked in from an approved mining supply of which there are several available sources within the district. The alternative for drilling without water is RC (reverse circulation). Radius is currently negotiating drill contracts with potential suppliers.

Qualified Person

Bruce Smith, M.Sc. (Geology), a member of the Australian Institute of Geoscientists, is Radius& Qualified Person as defined by National Instrument 43-101 - Standards of Disclosure for Mineral Projects. Mr. Smith has 30 years of mineral exploration experience and has prepared and approved the technical information contained in this news release.

Radius Gold Inc.

Radius has a portfolio of projects located in Mexico, Guatemala and Peru which it continues to advance, utilizing partnerships where appropriate to retain the Company&s treasury. At the same time, management is seeking out additional investment and project acquisition opportunities across the globe. Radius is a member of the Gold Group of companies, led by Simon Ridgway. You may find more information on Radius Gold at www.radiusgold.com orwww.sedarplus.ca.

ON BEHALF OF THE BOARD

Bruce Smith

President and CEO

Symbol: TSXV-RDU

Contact: Bruce Smith

1111 Melville Street, Suite 1000

Vancouver, BC V6E 3V6, Canada

Tel: 604-801-5432; Toll free 1-888-627-9378; Fax: 604-662-8829

Email: info@goldgroup.com

Website: www.radiusgold.com

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.

Forward-looking statements

Certain statements contained in this news release constitute forward-looking statements within the meaning of Canadian securities legislation. All statements included herein, other than statements of historical fact, are forward- looking statements and include, without limitation, statements about the results of exploration work and future plans at the Company&s projects. Often, but not always, these forward looking statements can be identified by the use of words such as “estimate&, “estimates&, “estimated&, “potential&, “open&, “future&, “assumed&, “projected&, “used&, “detailed&, “has been&, “gain&, “upgraded&, “offset&, “limited&, “contained&, “reflecting&, “containing&, “remaining&, “to be&, “periodically&, or statements that events, “could& or “should& occur or be achieved and similar expressions, including negative variations.

Forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the Company to be materially different from any results, performance or achievements expressed or implied by forward-looking statements. Such uncertainties and factors include, among others, whether the planned exploration work at the Company&s projects will proceed as intended; changes in general economic conditions and financial markets; the Company or any joint venture partner not having the financial ability to meet its exploration and development goals; risks associated with the results of exploration and development activities, estimation of mineral resources and the geology, grade and continuity of mineral deposits; unanticipated costs and expenses; and such other risks detailed from time to time in the Company&s quarterly and annual filings with securities regulators and available under the Company&s profile on SEDAR+ at www.sedarplus.ca. Although the Company has attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in forward-looking statements, there may be other factors that cause actions, events or results to differ from those anticipated, estimated or intended.

Forward-looking statements contained herein are based on the assumptions, beliefs, expectations and opinions of management, including but not limited to: that the Company&s stated goals and the planned exploration and development activities at its properties will be achieved; that there will be no material adverse change affecting the Company or its properties; and such other assumptions as set out herein. Forward-looking statements are made as of the date hereof and the Company disclaims any obligation to update any forward-looking statements, whether as a result of new information, future events or results or otherwise, except as required by law. There can be no assurance that forward-looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, investors should not place undue reliance on forward-looking statements.

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