Mr. Bruce Smith reports

RADIUS GOLD SIGNS TLACOLULA NSR GUARANTEE AGREEMENT WITH NEW OWNERS OF SAN JOSE MINE, MEXICO

Radius Gold Inc.'s wholly owned subsidiary, Geometales del Norte -- Geonorte SA de CV, has signed a net smelter return (NSR) royalty guarantee agreement for the 12,462-hectare Reduccion Tlacolula 2 mineral concession with JRC Ingenieria y Construccion SAC, a private Peruvian company that acquired the San Jose gold-silver mine located in Oaxaca state, southern Mexico, from Fortuna Mining Corp. in April, 2025.

The Tlacolula property is located 25 kilometres east of the San Jose mining complex in Oaxaca, Mexico, and hosts a high-grade epithermal gold-silver mineralized system. The complex includes a 3,000-tonne-per-day processing plant and underground epithermal gold-silver mine, which last reported by Fortuna Mining (March, 2025) resources of 1.19 million tonnes at 160 grams per tonne silver and 1.15 grams per tonne gold (measured and indicated) and inferred 1.05 million tonnes at 164 grams per tonne silver and 1.23 grams per tonne gold.

In addition to the Tlacolula NSR royalty, Radius holds a portfolio of NSRs and resource projects that have significant future upside potential.

Highlights of the Tlacolula NSR royalty:

• 2.0-per-cent NSR royalty: Radius has a 2.0-per-cent NSR royalty on future metal production from the Tlacolula property.
• Buydown provision: The royalty may be reduced by up to 1.0 per cent through cash payments to Radius of $1.5-million (U.S.).

Historic exploration by Radius and Fortuna Mining identified a large and low-sulphidation epithermal vein system in the Tlacolula concession. Highlights of the surface channel sample results include the following mineralized intervals:

• 6.30 metres averaging 19.34 grams per tonne gold and 986 grams per tonne silver (open);
• 9.60 metres averaging 0.13 gram per tonne gold and 295 grams per tonne silver (open);
• 3.30 metres averaging 0.07 gram per tonne gold and 234 grams per tonne silver;
• 1.00 metre averaging 4.28 grams per tonne gold and 367 grams per tonne silver;
• 1.50 metres averaging 0.52 gram per tonne gold and 561 grams per tonne silver;
• 9.00 metres averaging 0.22 gram per tonne gold and 83 grams per tonne silver (open).

The channel samples are generally oriented subperpendicular to the strike of the vein systems and are believed to approximate true widths of the mineralized structures. Two main veins totalling approximately 1,700 metres in strike length have been identified in the project area to date. These results demonstrate a compelling exploration target close to the San Jose mining complex.

Additional Radius NSR and project holdings:

• Option and exclusivity rights on the Tierra Roja copper project area in southern Peru;
• 35-per-cent ownership of the Amalia project in Mexico in joint venture with Pan American Silver; Amalia has 23,058 metres of drilling completed in 67 drill holes, with significant resource potential;
• 40-per-cent ownership of the Holly project in Guatemala in joint venture with Volcanic Gold Mines; Holly hosts and inferred mineral resource of 1.34 million tonnes at 6.46 grams per tonne gold and 256 grams per tonne silver for 272,110 ounces gold and 10,913,360 ounces silver;
• Sliding-scale royalty on the Tambor gold mine in Guatemala owned by Kappes Cassiday and Associates; Tambor produced in 2015 and 2016 and is currently on care and maintenance subject to arbitration with the Guatemalan government; the agreement between Radius and KCA calls for Radius to be repaid from this royalty up to $10-million, until the mine has produced 100,000 ounces of gold. After the $10-million has been paid, Radius will receive a minimum of $25 per ounce of gold produced over and above the initial 100,000 ounces.

Mineral resources are not mineral reserves and have not demonstrated economic viability. The estimate of mineral resources may be materially affected by environmental, permitting, legal, marketing or other relevant issues. The mineral resources in this report were estimated using the Canadian Institute of Mining, Metallurgy and Petroleum standards on mineral resources and reserves, definitions and guidelines prepared by the CIM standing committee on reserve definitions and adopted by the CIM council, notwithstanding, to meet the requirement that the reported mineral resources show reasonable prospects for eventual economic extraction.

The quantity and grade of reported inferred resources in this estimation are uncertain in nature and there has been insufficient exploration to define these inferred resources as indicated or measured mineral resources. It is uncertain whether further exploration will result in an upgrade to indicated or measured mineral resource category.

Qualified person

Bruce Smith, MSc (geology), a member of the Australian Institute of Geoscientists, is Radius's 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.

About 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.

We seek Safe Harbor.