Transatlantic Announces Extension of Exploration Permit for Golden Jubilee Project, Montana
Transatlantic Announces Extension of Exploration Permit for Golden
Jubilee Project, Montana
VANCOUVER, B.C., April 1, 2026 – Transatlantic Mining Corp. (the “Company”) (TCO:TSX.V) is pleased to
announce that the US Department of Agriculture has extended and approved the Plan of Operation of
the Golden Jubilee project located in Granite County, Montana.
Drilling at Golden Jubilee previously disclosed Sept 8, 2025, was postponed due to oncoming winter
weather conditions. Drill contractors were unable to safely mobilize before the interim permit
terminated December 1, 2025. The extension of approval, granted March 16, allows for new drilling and
dewatering at the Golden Jubilee mine approved to December 31, 2026.
The 2026 follow-up program will further test the down dip 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 2 to 4 holes to moderately
shallow depths of 300 metres.
“After the last successful program in 2023, we’re excited to test further the down dip and plunge of this
main zone of high-grade gold mineralization ” said Bernie Sostak, CEO of Transatlantic. “There is also the
potential to test the geophysical offset as a discovery which would more than double the length of
known strike , as well as any parallel mineralized zones at Golden Jubilee. This could have significant
impact on the overall gold bearing potential and future gold endowment.”
Highlights from the News Release - April 13, 2023 program:
• Drillhole # 2201 - 9.1 metres at 7.8 g/t Au from 64 metres 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 metres depth ( 5.5 m true width)
• Drillhole # 2203 - 6.1 metres at 13.1 g/t Au from 111.3 metres depth (6.0 m true width)
(Including 3.0 metres at 17.3 g/t Au)
The following long section (Figure 1) illustrates the 2023 intersections juxtaposed against
existing drill results as well as the processing results from earlier mining campaigns undertaken
at the Golden Jubilee Mine.
Figure 1: Long Section looking Northwest on Golden Jubilee Structure
About Golden Jubilee
The 22 Golden Jubilee claims are situated in Granite County, Montana USA 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 7 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.
Drillhole
Number
From
(m) To (m) Length (m)
Downhole
Length
(m)
True
Width
(m)
g/t Au Vein
GJB_RC_2201 64 73.2 9.1 9.1 8 7.78 New Vein
Includes 1.5 m at 16.11 g/t
Au
82.3 86.9 4.6 4.6 4.3 6.05 New Vein
86.9 93 6.1 6.1 5.5 6.86 New Vein
182.9 184.4 1.5 1.5 1.3 4.7 New Vein
219.5 221 1.5 1.5 1.3 6.51 New Vein
237.7 240.8 3 3 3 3.34 Golden Jubilee Vein
GJB_RC_2202 NSI No significant
Intersection
GJB_RC_2203 111.3 117.3 6.1 6.1 6 13.13 Golden Jubilee Vein
Includes 3 m at 17.3 g/t Au
GJB_RC_2204 NSI No significant
Intersection
GJB_RC_2205 VOID Not sampled, = Void
GJB_RC_2206 VOID Not sampled =Void
GJB_RC_2207 Not sampled
GJB_RC_2208 NSI Exploration Hole
GJB_RC_2209 NSI Exploration Hole
GJB_RC_2210 NSI Exploration Hole
Review by Qualified Person (Note Table 1 )
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 :
(*)The reverse circulation drill samples were crushed in whole to plus 70 % passing 2 mm and then split
and pulverised with analysis for gold and silver at the Christofferson Laboratory, Smelterville, Idaho USA.
The Laboratory is an independent assay and umpire laboratory that follows industry techniques with
blanks and standards inserted on batches of 25. The samples being pulverised and analysed with a 15 to
30 gram fire assay charge and a gravimetric finish. True widths were estimated based on the dip cross
section width of the mineralisation at 1.0 g/t Au cutoff ( Table 1). Additional historical holes drilled and
assayed are also on Figure 1. The Company also adds a standard to determine any assay bias.
About Transatlantic Mining Corp.
Transatlantic Mining (TSX-V: TCO) 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 has
property interests including an 80% Joint Venture position on the Monitor Copper-Gold project in
Montana-Idaho (USA) and 100 % of the Golden Jubilee Gold Project with its associated mining rights.
The Company has an extended lease, right to mine and purchase arrangement for the Miller Gold Mine
in Montana to 100% ownership by way of payment royalty.
ON BEHALF OF THE BOARD OF DIRECTORS
“ Bernie Sostak”
For more information contact
604-614-8469
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policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release