Mr. Gordon Neal reports

DOMESTIC METALS COMMENCES DRILL PROGRAM AT SMART CREEK PROJECT, MONTANA

Domestic Metals Corp. has commenced the planned 9,000-metre diamond drill program at its Smart Creek project in Montana. The program is designed to test high-grade porphyry copper style mineralization identified through the company's 2025 to 2026 exploration campaign.

The Smart Creek copper porphyry project, acquired in August, 2024, is a joint venture with Rio Tinto, where Rio owns 40 per cent of the asset. The project covers 8,000 hectares and is located 50 kilometres northwest of the Butte mine complex (the Butte district production is credited at 24.8 billion pounds of copper between 1180 to 2004) and occupies a similar geological setting. Smart Creek is considered prospective for porphyry copper as well as copper-gold-silver-enriched carbonate replacement deposits (CRD).

Rio Tinto drilled 26 of 40 permitted sites vectoring toward a porphyry centre at the Smart Creek target where the best hole returned 109.73 metres at 0.75 per cent Cu, which included 89 metres of 0.97 per cent copper (SMCR0022; news release dated Aug. 20, 2024). Domestic Metals' 2025 summer field program returned 102 g/t Au with 23.1 per cent Cu and 3,810 g/t Ag (news release dated Jan. 8, 2026).

Program highlights

• Up to 9,000 metres of diamond drilling across an estimated six to eight holes with a focus on the Smart Creek and Sunrise mine targets;
• Program fully financed through the company's existing treasury;
• Targets defined by IP 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;
• Drilling being conducted by KP Drilling of Arizona using a Borat Longyear LF-90 D diamond drill rig.

"Rig availability pushed our start date back several weeks, which is an unfortunate but common reality in this market. We are pleased to confirm the rig is now on site, and drilling has commenced after nearly two years of systematic exploration at Smart Creek," said Gordon Neal, chief executive officer and director of Domestic Metals. "Our geologists have developed targets based on the high-grade metal sampling results and new IP data. We believe Smart Creek is highly prospective for porphyry copper as well as copper-gold-silver-enriched carbonate replacement deposits. The program is designed to deliver news flow over the coming months, starting with visual observations from core and followed by assay results as they come in."

Project overview

After acquiring the project in August 2024, modern exploration by Domestic 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 returned 4.26 grams per tonne Au (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 further 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 m to 800 m 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 chargeability feature of interest to the north of Sunrise 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 m to 800 m diamond drill holes have been plotted. These holes should take approximately 60 days complete.

Webinar

Gordon Neal, chief executive officer and director, and Daniel MacNeil, PGeo, technical adviser, will provide investors with a comprehensive update on the drill program at the company's Smart Creek copper-gold-silver project in Montana:

Date:  Wednesday, Sept. 16, 2026

Time:   1:15 p.m. PT/4:15 p.m. ET/10:15 p.m. CT

Replay:  A full replay will be available to all registered attendees following the event.

Research and marketing agreements

The company has entered into a professional services agreement dated effective April 10, 2026, with HoldCo Markets Advisory Inc. (HCM), under which HCM will provide Domestic Metals with equity research, institutional distribution and social media distribution for a one-year term from April 10, 2026, to April 10, 2027. The services will be conducted in accordance with the applicable policies of the TSX Venture Exchange and the engagement of HCM is subject to the approval of the TSXV.

Under the agreement, Domestic Metals will pay HCM a total of $44,400 ($3,700 per month) plus applicable taxes, payable in two equal instalments. HCM currently owns 178,572 Domestic Metals common shares and 178,572 Domestic Metals common share purchase warrants. Other than the foregoing, neither HCM nor their principals have any present equity interest in the company's securities, directly or indirectly, or any right to acquire any equity interest. HCM can be reached at the Hudson's Bay Centre, 2 Bloor East, Toronto, Ont., M4W 3T3; telephone: 416-903-7522; e-mail: research@holdcomarkets.com.

In addition, the company has entered into an agreement with Epstein Research dated July 29, 2026, pursuant to which Epstein Research will provide public awareness activities and social media amplification. The services will be conducted in accordance with the applicable policies of the TSX Venture Exchange and the engagement of Epstein Research is subject to the approval of TSX-V.

Epstein Research has been engaged by the company for a three-month period commencing Aug. 15, 2026. In consideration for the services provided, the company has paid Epstein Research $6,000 (U.S.) plus applicable taxes. Epstein Research is arm's length to the company, has no other relationship with the company and neither Epstein Research nor its principal, Peter Epstein, has any interest, directly or indirectly, in the company or its securities, or any right or intent to acquire such an interest, other than as disclosed herein Epstein Research can be reached at address Upper Saddle River N.J., 07458, U.S., telephone: 1-845-304-7386; e-mail: epstein.peter4@gmail.com.

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 successful records in mine discovery, mining development and financing.

We seek Safe Harbor.