Mr. John Dorward reports

ROXMORE RESOURCES INITIATES MAJOR INFILL AND EXTENSIONAL DRILLING PROGRAM AT CONVERSE GOLD PROJECT

Roxmore Resources Inc. has commenced a significant 30,000-metre infill and extensional drilling campaign at its flagship Converse gold project, located on the Battle Mountain-Eureka trend in Nevada, United States.

The initial phase 1 program, comprising 15,000 metres, has commenced ahead of the company's coming preliminary economic assessment (PEA), in anticipation of a positive decision to advance to a prefeasibility study (PFS).

Key highlights:

• A reverse circulation (RC) drill rig has arrived on site to complement the existing core rig.
• Phase 1 of the program (15,000 metres) is underway, with additional rigs expected in the coming months as part of a planned 30,000-metre campaign.
• The core rig on site has completed twinning of and continuing below historic RC holes and is now targeting shallow oxide extensions and higher-grade structures in sparsely drilled areas of the resource;
• A pulp reassay program has been initiated to support the inclusion of silver grades in future mineral resource estimates;
• Sunstone Environmental Solutions has been engaged to initiate permitting for a mine plan of operations.

Infill and extensional drilling program

The core rig on site has transitioned from twinning historic RC holes -- aimed at better defining RC results versus core results and confirming the company's new oxidation model -- to targeting resource extensions and higher-grade structures in sparsely drilled areas of the mineral resource.

An offset hole has commenced targeting an extension of newly identified oxide mineralization intersected in hole CV25-005C, which returned multiple intercepts, including a shallow 25.0 m grading 0.96 gram per tonne gold, including 10.8 m grading 1.70 g/t Au.

The recently mobilized RC rig will initially focus on infilling sparsely drilled portions of the deposit. Drilling will include angled holes targeting higher-grade structures to improve the grade, confidence and classification within the updated mineral resource estimate (MRE) to be incorporated into the coming PEA.

John Dorward, executive chairman of Roxmore, commented: "We are excited about the upcoming PEA and the opportunity it presents to showcase the potential of the Converse project. In advance of finalizing the PEA, we have initiated a substantial infill and extensional drilling program designed to support a planned PFS while continuing to aggressively expand the deposit."

Development work

As part of the continuing study work, the RC drill will also be used to drill a water well to support hydrological studies and advance the company's understanding of self-sufficiency of water supply at Converse. This work is also intended to support long-term water rights by demonstrating use of the rights for mining-related purposes.

Sunstone Environment Solutions has been engaged to undertake a comprehensive suite of surveys to support a future mining permit application. These studies will build upon historic work completed across the project area and inform the permitting process going forward.

Roxmore has also recently commissioned a new core warehouse and office facility in Winnemucca, Nev., with the capacity to support increased operational activity and located significantly closer to the Converse project.

Coming catalysts:

• Q2 2026 -- additional drill results from current program;
• Q2 2026 -- release of the Converse PEA;
• Q3 2026 -- results of silver reassay program.

About Roxmore Resources Inc.

Roxmore is focused on developing its flagship Converse gold project, one of the largest undeveloped gold deposits not owned by a major mining company in Nevada, United States. The Converse gold project is located within the prolific Battle Mountain trend containing 5.57 million ounces gold of measured and indicated mineral resources and 420,000 ounces gold of inferred mineral resources (238 million tonnes at 0.539 g/t Au for 4.13 million ounces of measured mineral resources; 92 million tonnes at 0.487 g/t Au for 1.44 million ounces of indicated mineral resources and 25 million tonnes at 0.528 g/t Au for 420,000 ounces of inferred mineral resources). With decades of expertise in Nevada and globally, Roxmore's board and management are focused on unlocking the potential of this project. For further details please refer to Roxmore's technical report entitled "Amended and Restated NI 43-101 Technical Report and Mineral Resource Update, Converse Property, Humboldt County, Nevada, USA," dated effective Feb. 13, 2025, which is available on Roxmore's website and on the company's SEDAR+ profile.

Qualified person

The scientific and technical information contained in this news release has been reviewed and approved by Vance Spalding, CPG, executive vice-president, exploration, for Roxmore, who is a qualified person within the meaning of National Instrument 43-101, Standards of Disclosure for Mineral Projects.

Quality control and quality assurance

Drill core is generally extracted from the core tube and split tubes by the drill contractor and placed in core boxes with appropriate depth markers noting recovery. Full core boxes are then sealed before being transported by Roxmore's personnel to Roxmore's facility in Winnemucca, Nev., where it is geologically and geotechnically logged by Roxmore geologists: checked for recovery, photographed and marked for assays. The core is cut in half and placed in plastic bags, zip tied, and grouped in burlap sacks and sealed for transport to the ALS Global preparation facility in Elko, Nev. The retained half-core is stored at Roxmore's facility in Winnemucca, Nev.

RC chips are collected into five-gallon woven polyethylene bags in five-foot intervals and sealed by the drill contractor. The target weight of samples is three to five kilograms. Bags are prelabelled with sample numbers and depth intervals and validated against a sampling sheet. Every 30th sample is a field split duplicate. Field split duplicates are split at the RC rig using an even-numbered-chute riffle splitter. RC chips are geologically logged in the field by Roxmore geologists. Chip trays are transported to Roxmore's processing facility by Roxmore's personnel to Roxmore's facility in Winnemucca, Nev., where they are photographed and stored. RC samples are grouped in burlap sacks and sealed for transport in the field. Samples are transported to the ALS Global preparation facility in Elko, Nev.

Sample preparation is done according to ALS code PREP-31BY (one-kilogram-split pulverization). The primary assay methods used are ALS codes Au-AA24 and ME-ICP61. The gold overlimit methods are Au-GRA22 and Au_SCR21 (overlimit triggers are three parts per million and 10 ppm Au, respectively). ALS Global is an independent, ISO-accredited laboratory with no affiliation to Roxmore Resources beyond its role as a third party analytical service provider.

QA/QC is performed as each certificate is imported into Roxmore's GeoSequel database. Performance charts are prepared for coarse blanks, certified reference materials and duplicates used. Roxmore uses OREAS standards for the Converse project. The insertion frequencies 3.33 per cent for blanks, 3.33 per cent for CRMs (certified reference materials) and 3.33 per cent for quarter-core duplicates and RC chip field split duplicates. Coarse blanks above 10 times over the lower detection limit (LDL) of the Au-AA24 method are rerun. For certified reference materials, the certified mean is considered the target. The certified standard deviation is used to calculate the acceptable range. The acceptable range is defined as within three standard deviations from the certified mean.

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