Mr. Bernie Sostak reports

TRANSATLANTIC OBTAINS PERMIT FOR ADDITIONAL DRILLING, DEWATERING AT GOLDEN JUBILEE PROJECT, MONTANA

Transatlantic Mining Corp. has received its permit from the United States Forest Service for new drilling and dewatering at its Golden Jubilee project, located in Granite county, Montana. The permit is approved to Dec. 1, 2025.

Previous drilling by Transatlantic at the Golden Jubilee mine announced on April 13, 2023, consisted of 10 reverse circulation holes for a total of 2,000 metres (m). The results from this drilling program confirmed that the mineralized structure continues downdip and along strike from mineralization, which has either been mined previously or delineated by earlier drilling.

The 2025 follow-up program will further test the downdip extension and plunge of the main zone of mineralization.

It will also test a geophysical offset target that has not been drilled before. Additionally the permit allows for Transatlantic to dewater the mine and survey it for further exploration potential. The current plan envisages for Transatlantic to drill up to 1,000 metres in two to four holes to moderately shallow depths of 300 metres.

"After the last successful program in 2023, we're excited to test further of the downdip and plunge of this main zone of high-grade gold mineralization with the potential to add ounces of gold to our envisioned deposit model," said Bernie Sostak, chief executive officer of Transatlantic. "There is also the potential to test the geophysical offset as a discovery and additional parallel mineralized zones at Golden Jubilee. This could have significant impact on the overall gold-bearing potential and future gold endowment."

Webinar

Mr. Sostak will host an interactive webinar discussing the company's exploration programs and future plans on Wednesday, Sept. 10, 2025, at 9 a.m. PT. Register on-line in advance for this meeting.

Highlights from the news release -- April 13, 2023, program:

• Drill hole No. 2201: 9.1 metres at 7.8 grams per tonne (g/t) gold (Au) from 64 m depth (8.0 m true width) (including 1.5 metres at 16.11 g/t Au) 6.1 metres at 6.86 g/t Au from 86.9 m depth ( 5.5 m true width);
• Drill hole No. 2203: 6.1 metres at 13.1 g/t Au from 111.3 m depth (6.0 m true width) (including 3.0 metres at 17.3 g/t Au).

About Golden Jubilee

The 22 Golden Jubilee claims are situated in Granite county, Montana, and have had a number of previous owners. There has been only limited exploration and mining on the regional Red Lion (vein) line trend, which is known to continue over a regional strike of seven kilometres (km) in length. The Golden Jubilee mine is located in mountainous country at an elevation of approximately 2,350 m.

Historical production

Although some mining occurred prior to the year 2000, there are limited production records in existence.

Review by qualified person

Aslam Awan, PhD, MAusIMM (CP, Geo), is the qualified person pursuant to National Instrument 43-101, for having reviewed only the technical information and approved as such contained in this news release. Mr. Awan is the principal for AAA GeoConsultants.

About Transatlantic Mining Corp.

Transatlantic Mining is an emerging precious and base metal explorer. The company has a focus on converting projects into mines within stable mining jurisdictions. The company currently holds property interests, including an 80-per-cent joint venture position on the Monitor copper-gold project in Montana-Idaho and 100 per cent of the Golden Jubilee gold project with its associated mining rights. The company also has an extended lease, right to mine and purchase arrangement for the Miller gold mine in Montana, moving toward a 100-per-cent ownership by way of a payment royalty.

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