Radius Gold Confirms Silver-Lead-Zinc Tenor at Jonco Project and Proposes Private Placement

Vancouver, British Columbia — November 11, 2026 — Leads & Copy — Radius Gold Inc. (TSXV: RDU) has reported assay results from resampling of historic drill hole JNDH-01 at the Jonco silver project in Ancash, Peru. The resampling of quarter-core from the upper 83 metres of the hole, assayed at ALS Peru, confirms the silver-lead-zinc tenor of the original historic 2006 assays. The Company also announced a proposed non-brokered private placement.

The original JNDH-01 hole was drilled in 2006 and assayed at ALS Chemex using half-core. The 2026 samples are quarter-core from the remaining material. Due to the original and resample breaks not coinciding, length-weighted 2-metre composites from surface to 82 metres were used for comparison. The length-weighted average grades for the 0-82 metre interval show results similar to the recent assays.

In the 0-82 metre interval, the 2006 assays reported a weighted average grade of 0.09 g/t gold, 29.4 g/t silver, 0.60% lead, and 0.51% zinc. The 2026 resample assays for the same interval returned 0.07 g/t gold, 29.5 g/t silver, 0.56% lead, and 0.50% zinc. Arsenic results were 596 ppm in 2006 and 504 ppm in 2026.

A longer historic interval from 1.2 to 129.3 metres previously reported 28.8 g/t silver, 0.62% lead, and 0.56% zinc. The 2026 resample covers the upper portion of this interval, with grades of a similar order.

Analysis of the downhole traces shows that the 2026 assay results follow the peaks and troughs observed in the 2006 assays for gold, silver, lead, zinc, and arsenic. On 41 paired composites, the 2026 assays generally align closely with the one-to-one line against the 2006 assays, though some scatter is expected due to different core splits and composite lengths. Silver, lead, and zinc followed the 1:1 line closely, with silver at 29.5 g/t versus 29.4 g/t, zinc at 0.50% versus 0.51%, and lead at 0.56% versus 0.60%. Gold and arsenic were slightly below the line, with 2026 returning 0.07 g/t gold compared to 0.09 g/t, and 504 ppm arsenic compared to 596 ppm. Antimony results were slightly higher in the 2026 assays.

These results support the use of the 2006 assays in the ongoing evaluation of the Jonco project. Radius Gold Inc. plans to continue resampling selected intervals from remaining historic drill holes to confirm the 2006 results across the broader dataset, aiming to honor original sample breaks where possible in future work.

The 2026 assays were performed at ALS Peru S.A. using Au-AA23 for gold and ME-MS61r for multi-element analysis. Additional pulps were assayed at Bureau Veritas, with results showing good agreement between the two laboratories. The 2006 assays are historical results from ALS Chemex and have not been independently verified.

Further analysis of the 2026 multi-element results suggests a second variety of mineralization, distinct from the intermediate-sulfidation silver-lead-zinc event. At depths of 24 to 26 metres, gold increased to 0.19 g/t while silver, lead, zinc, arsenic, and antimony decreased. Concurrently, potassium, barium, strontium, and thallium showed increases, indicating a potential second generation of mineralization associated with a gold-bearing, low-sulfidation fluid and potassic alteration.

The co-occurrence of these two styles of mineralization within metres of each other in the same hole is consistent with telescoping, where an earlier intermediate-sulfidation base-metal stage has been overprinted by a shallower low-sulfidation gold stage due to rapid erosion or uplift during mineralization.

Examining the full core from 1.2 to 380.5 metres reveals instances where gold and silver are not always associated, reinforcing the presence of multiple mineralization styles. Three intervals show gold with minimal base metals, and other intervals exhibit higher silver grades with base metals while gold remains low, consistent with the intermediate-sulfidation base-metal stage. Additional multi-element analysis on remaining holes will help further characterize these different mineralization styles and episodes within the telescoped system.

Future work on the Jonco project includes selective sampling of remaining historic drill core to characterize different mineralization styles, anticipated to be completed in 2026. In early 2027, Radius plans to conduct a soil and rock-chip survey across the Jonco property, with all samples to be assayed by four-acid multi-element methods and fire assay for gold. This will help test for geochemical signatures of different mineralization styles and aid in target generation.

To fund exploration programs, including work at Jonco, and for general working capital, Radius proposes a non-brokered private placement of up to 4.0 million units at $0.24 per unit, aiming for gross proceeds of up to $960,000. Each unit will consist of one common share and one warrant, exercisable for an additional common share at $0.35 for 12 months. The warrants include an acceleration clause allowing for accelerated expiry if the closing share price is $0.50 or higher for 10 consecutive trading days. The Company may pay finder's fees, and completion of the private placement is subject to approval by the TSX Venture Exchange.

Luke Longridge, PhD, P.Geo., President of Radius, has reviewed and approved the technical information in this release as the Company's Qualified Person. The 2026 assay results have been verified, while the 2006 results are historical and unverified.

Radius Gold Inc. is an exploration company focused on discovering and advancing high-quality projects in the Americas.

Source: Radius Gold Inc.