Mr. Gord Neal reports

DOMESTIC METALS TO COMMENCE DRILL PROGRAM AT SMART CREEK PROJECT, MONTANA

Domestic Metals Corp. will commence a fully permitted and financed 9,000-metre drill program late August, 2026, targeting high-grade porphyry-copper-style mineralization at the Smart Creek project in Montana, located 50 kilometres northwest of the Butte Mine complex (the Butte district production is credited at 24.8 billion pounds of copper between 1180 and 2004) and occupies a similar geological setting. The drill program is designed to test numerous high-priority targets identified through the company's 2025-2026 exploration campaign.

Program highlights:

• Up to 9,000 metres of diamond drilling across an estimated six to eight holes;
• Program fully financed through the company's existing treasury;
• Targets defined by induced polarization geophysical program, surface sampling, results of historical drill program and 3-D computer modelling to help vector toward main mineralized sources on the property;
• First assay results are expected six to eight weeks following the start of the drilling.

"This program represents the culmination of nearly two years of systematic exploration at Smart Creek," said Gordon Neal, chief executive officer and director of Domestic Metals.

"We've refined our target model significantly since taking on the project, and the drill plan is designed to vector toward the centre of porphyry and CRD target mineralization. Our geologists have developed targets based on the high-grade surface rock sampling results and new IP geophysical data. We believe Smart Creek is prospective for porphyry copper as well as copper-gold-silver-enriched carbonate replacement deposits, and we're excited to finally put the drill bit to these targets."

Project overview

The Smart Creek copper porphyry project, acquired in August, 2024, is a joint venture with Rio Tinto, where Rio will retain 40 per cent of the asset. The project covers 8,000 hectares, is located 50 kilometres northwest of the Butte district and occupies a similar geological setting. Smart Creek is considered prospective for porphyry copper, as well as copper-gold-silver-enriched carbonate replacement deposits.

Rio Tinto previously drilled 26 of 40 permitted sites investigating the distribution of copper porphyry mineralization at the Smart Creek target, where the best hole returned 109.73 metres of 0.75 per cent copper, which included 89 metres of 0.97 per cent copper (SMCR0022; see news release dated Aug. 20, 2024).

Modern exploration by Domestic since 2024 has focused on identifying the broader mineralized system, using a combination of:

• Detailed geological mapping and structural interpretation;
• Reconnaissance mapping and sampling: assay results at the high-priority Sunrise target at the Smart Creek project returned 4.26 grams per tonne gold (news release dated March 3, 2025);
• 2025 summer field program: sampling returned high-grade results: 102 g/t Au with 23.1 per cent Cu and 3,810 g/t Ag (news release dated Jan. 8, 2026);
• IP geophysics with multiple new large-scale targets identified: IP chargeability features are coincident with previously established alteration footprints and high-grade sampling (news release dated Jan. 8, 2026); results support Domestic Metals' geologically and geochemically based target initiatives and represent priority 1 drill targets at the Smart Creek project (news release dated April 2, 2026);
• Compilation and digitization of historic drill hole and assay data.

This work has outlined two priority drill target areas, described below.

Drill target areas

Smart Creek target -- phase 1

The 2026 IP geophysical survey demonstrated that the chargeability feature extends farther west than previously known and represents a high-priority drill target with potential for porphyry-copper-style mineralization planned for the Smart Creek target zones on the eastern side of the project. Three 600-metre to 800-metre diamond drill holes have been plotted. These holes should take approximately 45 days to complete.

Sunrise mine target -- phase 2

The 2026 IP geophysical survey revealed a chargeable area of interest to the north of the Sunrise mine and also delineated a chargeability feature south of the Sunrise mine. The southern anomaly continues southward toward the Radio Tower target. This feature immediately south of the Sunrise mine represents a high-priority drill target for Domestic Metals with the potential for copper porphyry and skarn mineralization. Four 600-metre to 800-metre diamond drill holes have been plotted. These holes should take approximately 60 days complete.

More in-depth program details will be reported upon commencement of the drill program.

Stock options granted

Pursuant to the company's omnibus incentive plan, the company has granted incentive stock options to directors, officers and consultants of the company, to purchase up to an aggregate 2.15 million common shares in the capital stock of the company. The options are exercisable on or before Aug. 6, 2031, at an exercise price of 19 cents per share.

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).

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 favourable 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 records in mine discovery, mining development and financing.

We seek Safe Harbor.