Transatlantic Provides an Exploration Update for its Golden Jubilee Project in Montana
Transatlantic Provides an Exploration Update for its Golden
Jubilee Project in Montana
VANCOUVER, B.C., September 1, 2026 – Transatlantic Mining Corp. (the “Company”)
(TCO:TSX.V) is pleased to provide an exploration update on its Golden Jubilee project located in
Granite County, Montana.
A Set of 3 additional geophysical offsets of the mineralization referred to by the company in an April
1, 2026 news release was recently confirmed through a reconnaissance sampling program on one
where surface material was observed.
The footprint of the geophysical anomaly at anomaly #2 correlates directly with visual surface grab
sample # 28386 over 2.0 m at 22.3 g/t Au ,7.46 g/t Ag as collected (See Figure 1, Table 2 **).
Figure 1: Plan view highlighting geophysical anomalies and surface sample on Golden Jubilee
Structure offset.
The sample on Anomaly 2 is approximately 200 metres offset from the mined mineralisation
(Resource Target Area) with lateral extension and offset.
“The samples further ‘ground-truthed’ the potential of additional mineralization which we plan to
confirm further through a planned follow-up drill program, ” said Transatlantic CEO, Bernie Sostak.
“The geophysical offset has the potential to more than double the length of known strike, as well as
potential parallel mineralized zones at Golden Jubilee, not to forget deepening the mineral resource
target area.”
Drilling at Golden Jubilee previously disclosed Sept 8, 2025, was postponed and an extension was
filed and granted on March 16, 2026. This interim extension allows for new drilling and dewatering
of the Golden Jubilee Mine to December 1, 2026.
Transatlantic has planned for 1,600 m of drilling through four holes for its next program. Two of the
holes will be drilled targeting the down-dip extension to 400 m depth and two will test the newly
identified offset lateral extension also to 400 m depth. The Company is currently reviewing available
drill contractors to execute the program. Mine dewatering work is in progress, and pipes have been
recently laid and a generator purchased. Work on the Maiden Mineral Resource Estimate (MRE)
continues and the MRE is expected in the next quarter or by year end.
“The Resource Target area is only shallowly drilled and was trial mined in 2014. This gives scope for
increasing the mineralised footprint with staged drill programs into the future. This is very
encouraging given the drilling and mining to date.” Sostak said.
Highlights from the previous 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 : Resource Target Area ) 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 2: Long Section looking Northwest on Golden Jubilee Structure (Resource Target Area)
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.
In 2014 however ,a bulk sample was mined and processed through 2 toll treating facilities
recording 10,000 tonnes at 9 g/t Au.
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.
Review by Qualified Person (Note Table 2 * * )
Sample Number UTM Northing ( m) UTM Easting (m) From (m) To (m) Length
(m)
True
Width
(m)
Au (g/t) Ag (g/t) Comment
28386 5126150 330509 0.0 2.0 2.0 2 22.30 7.46 Surface Quartz iron rich float
Surface Grab sample over 2 metres
> 1 g/t Au
Rock Chip Samples may not reflect the average grade of mineralisation
The technical information in this news release has been reviewed and approved by Zachary J. Black,
SME-RM, Ethos Geological as an Independent Qualified Person as defined under NI 43-101
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
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the
policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this
release