RADIUS GOLD CONFIRMS HISTORIC SILVER-LEAD-ZINC GRADES FROM RESAMPLING OF JONCO DRILL CORE AND ANNOUNCES PRIVATE PLACEMENT

Radius Gold Inc. has released results from resampling of historic drill hole JNDH-01 at the Jonco silver project in the Department of Ancash, Peru. Quarter-core from the upper 83 metres of the hole was assayed at ALS Peru. The results confirm the silver-lead-zinc tenor of the original historic 2006 assays.

The company also announces a proposed non-brokered private placement.

Comparison with the 2006 assays

JNDH-01 was drilled in 2006 and assayed at ALS Chemex on half-core. The 2026 samples are quarter-core from the remaining material. Original sample breaks and the resample breaks do not coincide, so the two data sets cannot be compared sample for sample, and, therefore, length-weighted two-metre composites from surface to 82 metres have been used for comparison. Length-weighted average grades for zero to 82 metres are shown in Table 1, and 2006 results are similar to recent assays.

As previously reported, the longer historic interval in this hole, 1.2 to 129.3 metres, returned 28.8 grams per tonne silver, 0.62 per cent lead and 0.56 per cent zinc. The resample covers the upper part of that interval and grades are of a similar order.

Downhole, the 2026 traces follow the 2006 peaks and troughs in gold, silver, lead, zinc and arsenic.

On the 41 paired composites, the 2026 assays sit close to the one-to-one line versus the 2006 assays, although as these are length-weighted composites of two different splits of the core and not a direct comparison of the same sample -- some scatter is expected.

Silver, lead and zinc follow the 1:1 line closely: Silver is 29.5 g/t against 29.4 g/t, zinc is 0.50 per cent against 0.51 per cent, and lead is 0.56 per cent against 0.60 per cent. Gold and arsenic sit slightly below the line, with 2026 returning 0.07 g/t gold against 0.09 g/t and 504 parts per million arsenic against 596 ppm. Antimony sits slightly above the line, with the 2026 results higher than 2006.

These results support the use of the 2006 assays in continuing evaluation of the Jonco project. The company will continue to resample selected intervals from the remaining historic drill holes to confirm the 2006 results across the broader drill data set. In the future, original sample breaks will be honoured wherever possible.

The 2026 assays were completed at ALS Peru SA, an independent laboratory, by Au-AA23 (30-gram fire assay with atomic absorption finish) for gold and ME-MS61r (four-acid digestion with ICP-MS finish) for multielement analysis. Additional pulps from the 2026 batch were assayed at Bureau Veritas, also independent of the company. Results on the core samples are in good agreement between the two laboratories. Certified standards and blanks were inserted with the batch. Reported intervals are downhole lengths. True widths are not known. The 2006 assays are historical results from ALS Chemex. Gold was reported in parts per billion, consistent with fire assay. The multielement method code is not recorded in the available files, and the 2006 results have not been verified against the original certificates.

Other metals

The 2026 multielement results indicate a second variety of mineralization that is unrelated to the intermediate-sulphidation silver-lead-zinc event. At 24 to 26 metres, gold rises to 0.19 g/t while silver, lead, zinc, arsenic and antimony all fall to their lowest values in the sampled interval. At the same depth, potassium, barium, strontium and thallium show increases. Thallium substitutes for potassium in sericite and adularia, and barium and strontium travel with the same alteration. This suggests the possibility of a second generation of mineralization related to a gold-bearing, more alkaline fluid of low-sulphidation character, carrying potassic alteration, in addition to the tetrahedrite, galena and sphalerite of the main stage.

The two styles occurring a few metres apart in the same hole is consistent with telescoping, where an earlier or deeper intermediate-sulphidation base-metal stage has been overprinted by the shallower low-sulphidation gold stage. This overprinting is caused by rapid erosion or uplift during mineralization, exhuming older, deeper mineralization to shallower levels where it is overprinted.

Three intervals contain gold with minimal base metals; near 25 metres (mentioned above), as well as from 277.9 to 278.9 metres (0.76 g/t Au) and from 350.0 to 352.0 metres (0.54 g/t Au) -- in these latter two intervals, gold is associated with high arsenic. They match the low-sulphidation, base-metal-poor gold signature identified in the 2026 resampling.

In contrast, between 95.3 and 97.3 metres, silver reaches 98 g/t with 0.05 per cent copper, 2.4 per cent lead and 2.2 per cent zinc, while gold stays low at 0.14 g/t, and, from about 221 to 229 metres, gold, silver, copper, lead, zinc and arsenic all rise together. These intervals are consistent with the intermediate-sulphidation base-metal stage (both with and without a gold contribution).

Additional four-acid multielement work on the remaining holes will allow for further identification and characterization of different mineralization styles and episodes within this telescoped system.

Planned work on Jonco

The remaining Jonco historic drill core will be sampled selectively to focus on characterizing different mineralization styles. This work is anticipated to be completed in 2026. In early 2027, Radius plans to complete a soil and rock-chip survey across the Jonco property. All samples will be assayed by four-acid multielement methods, together with fire assay for gold. This work will allow the company to test for geochemical signatures of different mineralization styles across the property and will aid in target generation.

Private placement financing

In order to finance the company's exploration programs, including work at Jonco, and for general working capital purposes, Radius proposes to complete a non-brokered private placement of up to four million units at a price of 24 cents per unit for gross proceeds of up to $960,000. Each unit will consist of one common share of the company and one warrant, which will entitle the holder to acquire one additional common share at a price of 35 cents, exercisable for a period of 12 months following the closing date of the private placement.

The warrants will have an exercise acceleration clause such that, following the statutory hold period, if the closing price of the company's shares is 50 cents or higher for any 10 consecutive trading days, the company will have the right to accelerate the expiry date to 30 calendar days.

The company may pay a finder's fee in connection with a portion of the financing. Completion of the private placement is subject to approval by the TSX Venture Exchange.

Qualified person

Dr. Luke Longridge, PhD, PGeo, is the president of Radius and is Radius's qualified person as defined by National Instrument 43-101, Standards of Disclosure for Mineral Projects. Dr. Longridge has reviewed and approved the technical information contained in this news release. The 2026 assay results have been verified against the laboratory certificates. The 2006 results are historical and have not been independently verified.

About Radius Gold Inc.

Radius Gold is an exploration company focused on the discovery and advancement of high-quality projects in the Americas. The company's strategy is to identify, acquire and advance exploration opportunities with strong discovery potential.

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