Drilling Highlights Chanach Copper-GOLD Exploration and Resource Potential Announcement to the Toronto Stock Exchange and Australian Securities Exchange
Not for release to US wire services or distribution in the United States
DRILLING HIGHLIGHTS CHANACH COPPER-GOLD
EXPLORATION AND RESOURCE POTENTIAL
ANNOUNCEMENT TO THE TORONTO STOCK EXCHANGE
AND AUSTRALIAN SECURITIES EXCHANGE
30 September 2025
Highlights:
▪ Final assays from 4,300m of diamond drilling further demonstrate the scale and
high-grade nature of key targets within the Chanach Copper-Gold Project area
▪ Previous highlights of this year’s drilling include:
• 59.9m @ 0.67% Cu from 9.6m
• 3.4m @ 15.3g/t Au from 754.4m
• 1.8m @ 7.51g/t Au from 773.2m
• 3.1m @ 6.54g/t Au from 791.7m
• 3.7m @ 12.47g/t Au from 174m
• 4.5m @ 1.76g/t Au and 1.06% Cu from 32.8m
• 7.8m @ 11.65g/t Au from 41m
▪ Chanach hosts existing high-grade JORC compliant Inferred Mineral Resource
of 2.95 Mt @ 5.11 g/t Au for 484,000 ounces of Au and 17.23 Mt @ 0.37% Cu for
64,000t of Cu1 (141.1 Mlbs Cu) from only limited drilling to date
▪ Significant intercepts from new drilling are highlighted below with details in
Appendix 3
▪ Broad Oxide Copper intercept on southern edge of northern chargeable
geophysical anomaly:
Hole DD25-12
▪ 21.9m @ 0.39% Cu from 52.2m including:
o 2.9m @ 0.62% Cu from 66m
▪ 3.5m @ 0.35% Cu from 229.5m
▪ 1.7m @ 0.63% Cu from 242.9m
Hole DD25-13
▪ 2.10m @ 0.41%Cu from 30.6m
▪ 25.9m @ 0.49% Cu from 62.1m including
o 1.0m @ 1.10% Cu from 62.1m
o 1.2m @ 1.06% Cu from 86.8m
▪ 16.8m @ 0.44% Cu from 241.5m
▪ 5.4m @ 0.57% Cu from 263.4m
▪ High-grade Gold intercepted in gold veining outside of gold resource area –
several other mapped veins remain untested:
Hole DD25-11
▪ 0.50m @ 10.2g/t Au from 6.55m
▪ 6.05m @ 9.23g/t Au from 31.4m including:
o 2.65m @ 17.85g/t Au from 32.6m
▪ 1.00m @ 6.43g/t Au from 51.3m
The Board of RTG Mining Inc. (“ RTG”, or the “ Company”) ( TSX Code: RTG, ASX
Code: RTG) is pleased to provide the following update on the final assays received from
the 2025 diamond drilling campaign at its 90% owned Chanach Gold & Copper Project
(“Chanach”) in the Kyrgyz Republic.
The 2025 field season incorporated 4,300m of diamond drilling. Drilling was completed
outside of the existing gold resource base, mainly targeting the strong 1.8km diameter
IP anomaly identified last year along with a series of magnetic and skarn targets.
Drilling commenced on 6 May with two diamond drill rigs and at the time of this release
all 13 planned holes had been completed. Logging and assaying has also been
completed for this year’s program.
Commenting on the final assays from the 2025 campaign and on Chanach’s
growing exploration upside, RTG’s CEO Justine Magee said: “We are very pleased
to report these final assays from our 2025 field season at Chanach. Diamond drilling
continues to deliver high -grade intercepts from key copper and gold prospects,
demonstrating the scale and quality of this mineral field and providing valuable
information that will refine our target generation for the next drilling campaign.
This program was designed to target high -grade zones and provide a better
understanding of the significant opportunities of the mineral field which drilling has
demonstrated hosts various styles of mineralization, including high-grade gold from our
epithermal gold area (See Diagram 3), high-grade copper and gold from our 6.5km of
mineralised skarns (See Diagram 3) and the broad oxide copper zone associated with
the large geophysics anomaly (See Diagrams 2 and 3).
Along with the growing copper oxide footprint, o ur technical team remains very
encouraged by the potential to grow our existing gold resource base, with drilling o f a
quartz vein, which sits ~170m outside of the resource, returning exceptional results up
to 10g/t Au (See Diagrams 4 and 5). Several other mapped veins will be tested during
our next field campaign.”
Diagram 1 – License Area Showing New Drill Holes Associated with this Announcement.
Geophysical Target: Growing Copper Potential Warrants Follow-up Campaign
Holes DD25-12 and DD25-13 were drilled as a follow up to DD25-01 which intercepted
a large oxide copper zone on the southern edge of the northern chargeable anomaly.
Both holes intercepted broad anomalous copper zones which further show the size and
prospectivity of this area.
The three holes that have been drilled into this area, show the potential extent of
the area, which can be seen from previous channel sampling and soil sampling
with dimensions up to 600m long and 40m wide. This is an exciting area for copper
mineralisation and requires further targeted drilling.
Diagram 2 shows the position and possible extent of the copper zone, along with the
intercepts so far. Best intercepts from the two holes include:
Hole DD25-12
▪ 21.9m @ 0.39% Cu from 9.6m including:
o 2.9m @ 0.62% Cu from 66m
▪ 3.5m @ 0.35% Cu from 229.5m
▪ 1.7m @ 0.63% Cu from 242.9m
Hole DD25-13
▪ 2.10m @ 0.41%Cu from 30.6m
▪ 25.9m @ 0.49% Cu from 62.1m including
o 1.0m @ 1.10% Cu from 62.1m
o 1.2m @ 1.06% Cu from 86.8m
▪ 16.8m @ 0.44% Cu from 241.5m
▪ 5.4m @ 0.57% Cu from 263.4m
Diagram 2 – Showing Potential Oxide Copper Zone Intercepted by DD25-01, DD25-12 and DD25-13
Diagram 3 – Tenement Map Showing Key Mineralised Areas and Key Results from 2025 Drilling Campaign
High Grade Gold Vein: Exciting Potential to Grow Existing Gold Resource
The western side of the tenement hosts a series of epithermal gold veins. There is
currently a JORC compliant Inferred Mineral Resource of 2.95 Mt @ 5.11 g/t Au for
484,000 ounces of Au. The resource is associated with a series of quartz veins and is
open along strike and down dip.
Further highlighting the exciting potential of this region, there remains several untested
veins that have been mapped. Diagram 4 shows some of these veins both tested and
untested.
DD25-11 was drilled on an untested vein approx imately 170m away from the main
resource area and intercepted three veins of high-grade gold as outlined below:
Hole DD25-11
▪ 0.50m @ 10.2g/t Au from 6.55m
▪ 6.05m @ 9.23g/t Au from 31.4m including:
o 2.65m @ 17.85g/t Au from 32.6m
▪ 1.00m @ 6.43g/t Au from 51m.
Diagram 5 show s a cross -section of the intercepted veins and distance from main
resource veins.
Diagram 4 – Gold Resource Area Showing Tested and Untested Quartz Veining and DD25-11
Diagram 5 – Cross Section of DD25-11 showing distance from main Resource Area
Future Work: Sights Set on Several Exciting Copper and Gold Targets
All areas drilled have shown the potential to host high -grade copper and gold
mineralisation. The blind magnetic ta rget and skarn areas all require further step -out
drilling and the geophysical target needs more follow up in the copper oxide area and deep
gold intercepts.
Further work is also planned on several untested areas of the 1.8km diameter IP anomaly
where chargeable signatures sit on the contact of the resistive areas. These target areas
are up to 700m in length and sit further to the east of this year’s drilling (see last
announcement for diagram).
Given the number of untested quartz veins and the fact that the currently tested veins are
open along strike and down dip, the gold area will also be the focus of future work.
ABOUT RTG MINING INC
RTG Mining Inc. is a mining and exploration company listed on the main board of the
Toronto Stock Exchange and the Australian Securities Exchange. RTG is currently
focused primarily on progressing the Mabilo Project to start -up having now received a
mining permit for the Project, with a view to moving quickly and safely to a producing gold
and copper company.
RTG also has a number of exciting new opportunities including the Panguna Project in
Bougainville, which it remains committed to while also considering further new business
development opportunities.
RTG has an experienced management team which has to date developed seven mines
in five different countries, including being responsible for the development of the Masbate
Gold Mine in the Philippines through CGA Mining Limited. RTG has some of the most
respected international institutional investors as shareholders including Equinox Partners
and Franklin Templeton.
ENQUIRIES
President & CEO – Justine Magee
Tel: +61 8 6489 2900
Email: [email protected]
Australian Investor and Media Contact
Sam Burns: +61 400 164 067
Email: [email protected]
COMPLIANCE STATEMENT
Date:
Authorised for release by:
30 September 2025
By the Board of Directors
QUALIFIED PERSON AND COMPETENT PERSON STATEMENT
The information in this release that relates to Exploration Results and Mineral Resource Estimates
of the Chanach Project is based upon information compiled, reviewed and approved by Viktor
Zabolotny who is a Qualified Person under National Instrument 43-101 – Standards of Disclosure
for Mineral Projects (“NI 43 -101”) and a Competent Person as defined in the 2012 Edition of the
‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’
who is a Member and Chartered Professional of the Austra lian Institute of Mining and Metallurgy
and a Member of the Australian Institute of Geoscientists. Viktor Zabolotny is employed by BW
Three Holdings Ltd and is a consultant to RTG. Viktor Zabolotny has sufficient e xperience that is
relevant to the style of mineralisation and type of deposit under consideration and to the activity
being undertaken to qualify as a Competent Person and a Qualified Person for the purposes of NI
43-101. Viktor Zabolotny consents to the inclusion in the release of the matters based on his
information in the form and the context in which it appears.
The information in this release that relates to Exploration Targets of the Chanach Project is based
upon information compiled, reviewed and approved by Greg Hall who is a Qualified Person under
NI 43-101 and a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for
Reporting of Exploration Results, Mineral Resources and Ore Reserves’ who is a Member and
Chartered Professional of the Australian Institute of Mining and M etallurgy and a Member of the
Australian Institute of Geoscientists. Greg Hall is employed by Golden Phoenix International Pty
Ltd and is a consultant to RTG. Greg Hall has sufficient experience that is relevant to the style of
mineralisation and type of deposit under consideration and to the activity being undertaken to
qualify as a Competent Person and a Qualified Person for the purposes of NI 43 -101. Greg Hall
consents to the inclusion in the release of the matters based on his information in the form and the
context in which it appears.
The information in this release that relates to areas outside of exploration results, Mineral
Resources, Mineral Reserves and Metallurgy and Processing is based on information prepared by
or under the supervision of Mark Turner, who is a Qualified Person and Competent Person. Mark
Turner is a Fellow of the Australasian Institute of Mining and Metallurgy and is employed by RTG
Mining Inc, the Company. Mark Turner has sufficient experience that is relevant to the information
under consideration and to the activity which he is undertaking to qualify as a Competent Person
as defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results,
Mineral Resources and Ore Reserves” and to qualify as a “Qualified Person” under National
Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). Mark Turner has
verified the data disclosed in this release. Mark Turner consents to the inclusion in the release of
the matters based on his information in the form and context in which it appears.
For the ASX Feasibility Study announcement including JORC tables please refer to the RTG
Mining website (www.rtgmining.com) and on the ASX, under announcements (www.asx.com.au).