Mr. Gord Neal reports

SURFACE SAMPLING AT SMART CREEK PROJECT YIELDS HIGH-GRADE MINERALIZATION WITH UP TO 102 G/T AU, UP TO 23% CU AND UP TO 3810 G/T AG

Domestic Metals Corp. has provided an exploration update. The company has received analytical results for 310 surface samples from the summer/fall field campaign at the Smart Creek project in Montana. The program was designed to characterize known mineralized zones, refine drill target locations and identify new areas for follow-up exploration. The program has successfully identified high-grade gold, copper and silver at the Smart Creek project, and has expanded all known targets and identified new high-grade copper, gold and copper mineralization across the property.

Gord Neal, chief executive officer of Domestic Metals, commented: "The 2025 field campaign was a success. These are the highest-grade field samples results I have ever been presented with in my career. In my experience, these kinds of returns are harbingers of major economic discoveries. High-grade mineralization has been identified in several locations, including new discovery areas. We look forward to firming up drill targets, deploying a targeted geophysics program followed by a diamond drill program in Q1 2026."

Highlight high-grade assay results:

• 102 grams per tonne (g/t) gold (Au) (sample G019007);
• 74.7 g/t Au, 13.8 per cent copper (Cu) and 3,810 g/t silver (Ag) (sample G019235);
• 30.4 g/t Au (sample G019001);
• 26.6 g/t Au (sample G019353);
• 23.1 per cent Cu and 424 g/t Ag (sample G019225);
• 19.65 per cent Cu and 458 g/t Ag (sample G019031);
• 19.05 per cent Cu and 582 g/t Ag (sample G019038).

Highlight, high-grade surface samples are provided in the attached table.

Summary:

• Domestic completed successful mapping, sampling and prospecting at the Smart Creek project. The new data will be coupled with a geophysical (MT/IP) program in advance of drilling scheduled for Q1 (first quarter) 2026.
• Rock sample assays from outcrops, historic trenching, mines and workings demonstrate high-grade gold, copper, silver and zinc, and confirm the project is prospective for porphyry copper deposits, carbonate replacement deposits (CRD), skarn and exotic copper deposits.
• Thirty-nine samples (out of 310) exceed 0.5 g/t Au, 43 samples (out of 310) exceed 1 per cent Cu, 35 samples (out of 310) exceed 30 g/t Ag and 31 samples (out of 310) exceed 0.1 per cent zinc (Zn).
• All targets (Sunrise Mine, Smart Creek, Radio Tower, Exotic Cu) are significantly expanded based on the results of the 2025 exploration program at the project.

Domestic Metals 2025 exploration program review

Domestic Metals completed a 40-day field campaign in August to September, 2025, focused on geological mapping, as well as several novel rock sampling techniques, including prospecting grab/composite grab samples and limestone sampling for trace metal vectoring. Sample subsets were also evaluated for alteration (slab and stain for potassic alteration related to porphyry mineralization), ultraviolet (UV) light evaluation (seeking metal contaminated calcite veins that can assist with vectoring toward CRD and porphyry mineralization), short-wave infrared evaluation (clay alteration vectoring) and portable XRF evaluation of iron oxide fracture fill (geochemical leakage vectoring technique to identify mineralization). Data from techniques other than the prospecting samples is currently being reviewed by Domestic Metals and will be the subject of future news release.

Smart Creek porphyry copper project

The Smart Creek copper porphyry project is a joint venture with Rio Tinto, where Rio will retain 40 per cent of the asset. Rio drilled around 26 of the 40 permitted sites over 2.5 years as they vector toward the centre of the porphyry and at the Smart Creek target returned 109.73 metres at 0.75 per cent Cu, which included 89 metres of 0.97 per cent copper (SMCR0022; see news release dated Aug. 20, 2024).

Exceptional rock sample results have been received from the 2025 fieldwork, which highlights several opportunities, including porphyry, skarn, CRD and structurally controlled gold.

Of particular interest, the Smart Creek project area is underlain by geology that is highly prospective for CRD style deposits:

• The Helena Fm silty limestones are superb reactive trap rocks.
• Heat and fluid sources are abundant in this prolific western Montana porphyry belt.
• The CRD signature alteration footprints are widespread at Smart creek (marble and manganese oxides).
• Massive to semi-massive sulphides with excellent metal tenor have been sampled and mapped on the property.

Major deposits in the carbonate-hosted clan can yield high-unit-value deposits with an excellent pedigree in the western unit states. Examples include the Copper Queen CRD deposit in the Bisbee Arizona district, which yielded historical production of 53 million tonnes (t) at 6 per cent Cu. The Domestic Metals technical team has extensive experience with this style of mineralization and will systematically explore for the CRD deposit style at the project using modern tool kits.

The geochemical data are enhancing known target areas and is allowing Domestic Metals to identify targets for follow-up diamond drilling scheduled for late Q1 2026. New target areas have also been identified for target work-up.

Technical information

All scientific and technical information in this news release has been reviewed and approved by Daniel MacNeil, PGeo. Mr. MacNeil is a technical adviser to the company and is a qualified person for the purposes of National Instrument 43-101, Standards of Disclosure for Mineral Projects.

Mr. MacNeil has verified the data disclosed in this news release, including the assay and test data underlying the information or opinions contained in this news release. Mr. MacNeil verified the data disclosed (including previously released Domestic data underlying the information disclosed) in this news release by reviewing imported and sorted assay data; checking the performance of blank samples and certified reference materials; reviewing the variance in field duplicate results; and reviewing grade calculation formulas. Mr. MacNeil detected no significant QA/QC (quality assurance/quality control) issues during review of the data, and is not aware of any sampling, recovery or other factors that could materially affect the accuracy or reliability of the drilling data referred to in this news release.

Samples were coarse crushed, fine crushed to 70 per cent less than two millimetres, split using a Boyd rotary splitter, pulverized up to 250 grams 85 per cent less than 75 micrometres. Analysis was conducted following four-acid digestion (34-element ICP-AES (inductively coupled plasma atomic emission spectroscopy); ME-ICP61). Gold was analyzed by 30-gram fire assay -- AA (atomic absorption) finish (Au-AA23). Overlimits were evaluated by Au-GRA21, Ag-OG62, Cu-OG62, Zn-OG62 and Ag-GRA21. The company used ALS Labs in Reno, Nev.

Samples with certified reference materials were inserted at intervals for approximately 5 per cent of the submitted samples (15 standards total). QA/QC results are satisfactory for the standards.

About Domestic Metals Corp.

Domestic Metals is a mineral exploration company focused on the discovery of large-scale, copper and gold deposits in exceptional, historical mining project areas in the Americas.

The company aims to discover new economic mineral deposits in historical mining districts that have seen exploration in geologically attractive mining jurisdictions, where economically favorable grades have been indicated by historic drilling and outcrop sampling.

The Smart Creek project is strategically located in the mining-friendly state of Montana, containing widespread copper mineralization at surface, and hosts four attractive porphyry copper, epithermal gold, replacement and exotic copper exploration targets with excellent host rocks for mineral deposition.

Domestic Metals is led by an experienced management team and an accomplished technical team, with successful records in mine discovery, mining development and financing.

We seek Safe Harbor.