Giant Mining Expands New Copper Discovery at Majuba Hill Copper-Silver-Gold Project, Nevada with AI-Driven Drill Program as Phase 2 Exploration Begins
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Press Release September 3, 2025
Giant Mining Expands New Copper Discovery at Majuba Hill
Copper-Silver-Gold Project, Nevada with AI-Driven Drill
Program as Phase 2 Exploration Begins
VANCOUVER, BC — September 3, 2025 — Giant Mining Corp. (CSE: BFG
| OTC: BFGFF | FWB: YW5 | CSE: BFG.WT.A | CSE: BFG.WT.B) (“Giant
Mining” or the “Company”) is pleased to announce the commencement of its
highly anticipated 2025 Phase 2 Exploration Program at the Majuba Hill Copper-
Silver-Gold Project in Pershing County, Nevada.
Building upon the success of Phase 1, this next phase leverages a porphyry-
driven, magmatic-hydrothermal breccia model to unlock the district-scale
potential at the Majuba Hill.
With the United States accelerating efforts to re-shore critical mineral supply
chains, copper has emerged as an indispensable resource—essential for
electrification, grid modernization, renewable energy, and advanced
manufacturing. Majuba Hill, located in one of the world’s most mining-friendly
jurisdictions, is poised to become a key domestic source of copper, supporting
America’s transition to a sustainable, self-reliant future.
2025 Phase 2 Surface Exploration Highlights-Figure 1:
• Southern Breccia Zone – Historic Workings Area: Integration of drill -
defined breccia zones into the 3D digital model and copper mineralization,
positioning Majuba Hill for future exploration.
• Northern Breccia Zone – Newly recognized Breccia Body Targeting:
Comprehensive surface mapping, core data analysis, and the addition of
93 new soil samples to evaluate the zone’s full extent.
• Ball Park Breccia – Newly recognized Breccia Body with multiple Breccias:
Improve geologic characterization by utilizing historical drill data to
delineate potential high-grade breccia-hosted mineralization.
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• 789 Resistivity Target – Advanced AI Integration: Deployment of
ExploreTech’s AI-driven geophysical modeling to refine IP/resistivity
targets using the latest porphyry-breccia exploration techniques.
• New soil samples will extend the existing soil sample grid and provide
additional geochemical characterization data for the newly recognized
Northern Breccia Zone and Ball Park Breccia.
Figure 1: Phase 2 Surface Exploration Target Zones
2025 Phase 1: AI Drill Hole Highlights:
Final assay results have been received for Phase 1 of the Spring 2025 diamond
drilling program (the “Core Program”) for core hole MHB-36, completed at
the Majuba Hill Porphyry Copper-Silver-Gold Project (“Majuba Hill”) in Pershing
County, Nevada (Figure 2).
This was the fifth and final drill hole of the program, completed to a total depth (TD) of
1,100 feet (335.3 meters).
“The final assay results from MHB-36 confirm the effectiveness of our AI-driven
targeting strategy at Majuba Hill,” stated David Greenway, CEO of Giant Mining.
“ExploreTech’s proprietary geophysical modeling successfully identified a high-
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potential breccia zone in the Southern Corridor, expanding our understanding of
Majuba’s copper mineralization. With these results in hand, we are confident that
our Phase 2 program will build on this momentum and further unlock the district-
scale copper, silver, and gold potential of Majuba Hill in Nevada.”
Core hole MHB-36 was designed by Exploration Technologies, Inc. (“ExploreTech”) using
its proprietary AI-assisted geophysical modeling system to test a high-potential resistivity
anomaly in the Southern Zone Breccia Corridor of the Majuba Hill project area. The AI-
driven targeting approach sought to identify geologically favorable zones with potential for
copper mineralization beyond those already known.
Figure 2: Map showing copper mineralized breccias and 2024-25 core
holes
The primary objective of the Core Program was to delineate and better understand the
geometry and extent of the copper-bearing breccia zones. Assay results and geological
interpretation outline a distinct copper-mineralized breccia body at Majuba Hill (Figure 2).
Highlights
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Ø MHB-36 intersected numerous 5 to 20 feet (1.5-6.1 m) long intervals of
supergene and hypogene copper in veins and disseminated in the rhyolite
porphyry and within Triassic age metasediment roof pendants in the intrusive
and magmatic-hydrothermal breccia bodies (see Table 1). The copper values
are directly correlative to the presence of chalcopyrite (Figure 3). Including:
o 1.5 ft (0.5 m) @ 1.21% Cu from 741.5 to 743 feet (225-226.5
m)
Ø The South Resistivity Anomaly (Figure 2) outlined by the ExploreTech
geophysical modeling process distinctly identified the zone with hypogene
(chalcopyrite) copper mineralization. Based on the recent review and modeling
by Giant’s technical team and consultants, this resistivity anomaly is directly
adjacent to the deeper parts of the magmatic-hydrothermal breccia body.
Ø Copper within the “Mineralized Tourmaline-Early Breccia” (Figure 2) included
enriched and primary (hypogene) copper mineralization as previously
announced on May 22, 2025 and July 15, 2025 (Table 1).
Ø Previously reported Copper occurred in long intervals of copper
mineralization within both the main “Mineralized Tourmaline-Early Breccia”
and the surrounding “Late Stockworked Rhyolite” (Figure 2).
Buster Hunsaker, Consulting Geologist, commented: “The ExploreTech
process gives Giant Mining a solid vectoring tool. With this AI-driven process,
the Company can utilize the extensive property-wide, IP/Resistivity database.
The presence of the copper (as chalcopyrite) is directly related to the magmatic-
hydrothermal breccias and the ExploreTech process pointed us straight to the
anomalous zone.”
Hole ID Interval
ft Cu% CuEq
with Ag
From
ft To ft Significant Interval Copper*
MHB-30
Entire
Hole 800.0 0.43 0 800.0 800 ft @ 0.43% Cu from 0 to 800 feet
includes 218 1.35 2.14 0 218 218 ft @ 1.35% Cu from 0 to 218 feet
with 74 2.60 2.90 140 214 74 ft @ 2.6% Cu from 140 to 214 feet
MHB-31
Entire
Hole 1086.0 0.03 0 1086.0 1086 ft @ 0.03% Cu from 0 to 1086 feet
includes 115.0 0.10 769 884.0 115 ft @ 0.1% Cu from 769 to 884 feet
and 89.0 0.08 909 998.0 89 ft @ 0.08% Cu from 909 to 998 feet
MHB-32 Entire
Hole 889.5 0.16 0.25 0 889.5 889.5 ft @ 0.16% Cu from 0 to 889.5 feet
Significant
Interval 379.5 0.33 0.51 510 889.5 379.5 ft @ 0.33% Cu from 510 to 889.5 feet
includes 85 0.64 1.16 510 595 85 ft @ 0.64% Cu from 510 to 595 feet
and
includes 170 0.41 0.51 720 890 169.5 ft @ 0.41% Cu from 720 to 889.5 feet
with 40.0 1.36 1.50 780 820.0 40 ft @ 1.36% Cu from 780 to 820 feet
with 10.0 4.36 4.72 805 815.0 10 ft @ 4.36% Cu from 805 to 815 feet
MHB-33 Entire
Hole 936.0 0.02 0.05 0 936.0 936 ft @ 0.02% Cu from 0 to 936 feet
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Hole ID Interval
ft Cu% CuEq
with Ag
From
ft To ft Significant Interval Copper*
with 35.0 0.09 0.15 5 40.0 35 ft @ 0.09% Cu from 5 to 40 feet
includes 5.0 0.27 0.33 35 40.0 5 ft @ 0.27% Cu from 35 to 40 feet
and 5.0 0.11 0.18 345 350.0 5 ft @ 0.11% Cu from 345 to 350 feet
and 5.0 0.11 0.12 620 625.0 5 ft @ 0.11% Cu from 620 to 625 feet
and 5.0 0.11 0.13 895 900.0 5 ft @ 0.11% Cu from 895 to 900 feet
MHB-34 Entire
Hole 1963.0 0.09 0.13 0 1963.0 1963 ft @ 0.09% Cu from 0 to 1963 feet
with 40 0.15 0.3 100 140 40 ft @ 0.15% Cu from 100 to 140 feet
with 5 0.37 0.5 230 235 5 ft @ 0.37% Cu from 230 to 235 feet
with 15 0.10 0.2 370 385 15 ft @ 0.1% Cu from 370 to 385 feet
with 35 0.08 0.1 405 440 35 ft @ 0.08% Cu from 405 to 440 feet
with 10 0.14 0.2 505 515 10 ft @ 0.14% Cu from 505 to 515 feet
with 135 0.14 0.2 625 760 135 ft @ 0.14% Cu from 625 to 760 feet
includes 10 0.40 0.5 665 675 10 ft @ 0.4% Cu from 665 to 675 feet
45 0.14 0.2 1075 1120 45 ft @ 0.14% Cu from 1075 to 1120 feet
Significant
Interval 500 0.21 0.2 1210 1710 500 ft @ 0.21% Cu from 1210 to 1710 feet
includes 30 0.13 0.2 1210 1240 30 ft @ 0.13% Cu from 1210 to 1240 feet
and 165 0.24 0.3 1280 1445 165 ft @ 0.24% Cu from 1280 to 1445 feet
and 205 0.27 0.3 1505 1710 205 ft @ 0.27% Cu from 1505 to 1710 feet
which
includes 55 0.41 0.5 1505 1560 55 ft @ 0.41% Cu from 1505 to 1560 feet
30 0.07 0.1 1230 1260 30 ft @ 0.07% Cu from 1230 to 1260 feet
MHB-35 Entire
Hole 596.0 0.04 0.08 0 596.0 596 ft @ 0.04% Cu from 0 to 596 feet
with 90 0.09 0.1 115 205 90 ft @ 0.09% Cu from 115 to 205 feet
and 30 0.08 0.2 225 255 30 ft @ 0.08% Cu from 225 to 255 feet
MHB-36 Entire
Hole 1100.0 0.02 0.03 0 1100.0 1100 ft @ 0.02% Cu from 0 to 1100 feet
with 5.0 0.12 0.0 535 540 5 ft @ 0.12% Cu from 535 to 540 feet
and 5.0 0.21 0.3 610 615 5 ft @ 0.21% Cu from 610 to 615 feet
and 1.5 0.14 0.2 655 657 1.5 ft @ 0.14% Cu from 655 to 656.5 feet
and 1.5 0.23 0.3 673 675 1.5 ft @ 0.23% Cu from 673 to 674.5 feet
and 1.5 1.21 1.7 742 743 1.5 ft @ 1.21% Cu from 741.5 to 743 feet
and 5.0 0.16 0.2 790 795 5 ft @ 0.16% Cu from 790 to 795 feet
and 20.0 0.08 0.1 865 885 20 ft @ 0.08% Cu from 865 to 885 feet
and 5.0 0.12 0.20 960 965.0 5 ft @ 0.12% Cu from 960 to 965 feet
Table 1: Significant Copper Intervals for 2024 and 2025 Drilling. (*True
widths are unknown.) *Copper Equivalent Calculation: Copper equivalent
(CuEq) values were calculated by combining the assay values for copper and
silver assay results for each intercept using an interval-weight calculation based
on $4.475/lb Cu and $31.29/oz Ag.
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Figure 3: Left Photo - Chalcopyrite in quartz, 0.23% Cu @ 674 feet
(205.4 m). Right Photo – Chalcopyrite in intrusive porphyry, 0.16% Cu
@ 795 feet (242.3 m)
Majuba Hill’s critically important characteristics are as follows:
Location:
Nevada, USA — a globally top-ranked mining jurisdiction,
ranked #1 in the Fraser Institute’s 2022 Annual Survey of
Mining Companies.
Project Size: 9,684 Acres
Infrastructure:
The Majuba Hill property is located 113 road kilometers (70
miles) southwest of Winnemucca, Nevada, and 251 kilometers
(156 miles) northeast of Reno. It is accessible via well -
maintained county roads from the Imlay, Nevada exit on U.S.
Interstate 80, followed by a 23-mile drive west. People, roads,
power, and water are fundamental considerations for
infrastructure, and Majuba Hill already benefits from a strong
foundation in all these areas. This existing infrastructure
provides a significant advantage, offering substantial cost
savings compared to more remote projects.
History: Historical Producer
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Drilling:
Approximately 89,395 feet of drilling to date. Rough
replacement value of drilling USD $12.1 Million using current
costs.
Mineralization:
The project shows indications of a potentially large Cu – Ag +/-
Au mineralized body with many features in common with both
large porphyry copper, silver, and gold projects.
Expandability:
The IP survey, deep drilling, and step-out drilling indicate
significant expansion potential, with mineralization open in all
directions.
Fully Financed: Secured funding for next phase of drilling at Majuba Hill
Quality Assurance/Quality Control (“QA/QC”) Measures, Chain of Custody
The Company utilizes a QA/QC program using best industry practices at the Majuba Hill
Project. The samples are placed in cloth sample bags and are transported from the Giant
Mining secure warehouse to the ALS Labs Sample Prep Facility in Elko, Nevada. ALS Labs
then securely transports the prepared pulps to their analytical lab in North Vancouver, B.C.
Drill core samples are sawn in half lengthwise and one half is placed in labeled cloth sample
bags. All samples are analyzed for copper, gold, silver, and 33 other elements. Gold is
determined by ALS Labs method Au-AA23 which is a fire assay with an AAS finish on a 30-
gram split. Copper, silver, and the remaining 31 elements are determined by ALS Labs
method ME-ICP61 which is a four-acid digestion and ICP-AES assay. Approximately 5% of
the submitted samples are drill duplicates and copper-gold-porphyry commercial standard
reference material pulps. The remaining pulps will be retrieved from ALS Labs.
Qualified Person
The scientific and technical information contained in this news release has been reviewed
and approved by E.L. “Buster” Hunsaker III, CPG 8137, a non-independent consulting
geologist who is a “Qualified Person” as such term is defined under National Instrument
43-101 – Standards of Disclosure for Mineral Projects (“NI 43- 101”).
Market Awareness
Giant Mining has entered into a three-month agreement with InteractiveOffers LLC
(“Interactive Offers”) for a one-time payment of USD $61,000. Under this
engagement, Interactive Offers will support the Company in developing and executing a
comprehensive investor relations program designed to enhance transparency and
strengthen engagement with the investment community.
The services will include strategic communication planning, dissemination of financial
disclosures, and the maintenance of an updated investor relations website with access to
filings, press releases, and corporate updates. In addition, Interactive Offers will conduct
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targeted outreach to both retail and institutional investors to broaden awareness of Giant
Mining’s strategic growth initiatives and corporate milestones.
Interactive Offers has extensive experience supporting small-cap and micro-cap
companies, with a proven focus on crafting clear, compelling narratives for investors. This
engagement is expected to increase Giant Mining’s visibility in the capital markets while
ensuring the Company remains committed to accurate and timely disclosure.
Interactive Offers and its principal, Eder Holguin, can be reached at
[email protected] or by phone at +1 (844) 563-3377. The firm’s office is located
at 327 Plaza Real, Ste 319, Boca Raton, FL 33432 USA.
About Giant Mining Corp.
Giant Mining is focused on identifying, acquiring, and advancing late-stage copper and
copper/silver/gold projects to meet the growing global demand for critical metals. This
demand is driven by initiatives like the Green New Deal in the United States and similar
climate-focused programs worldwide, which require substantial amounts of copper, silver,
and gold for electric vehicles, renewable energy infrastructure, and the modernization of
clean and affordable energy systems.
The Company’s flagship asset is the Majuba Hill Copper, Silver, and Gold District, located
156 miles (251 km) from Reno, Nevada. Majuba Hill is situated in a mining-friendly
jurisdiction with supportive regulations and has the potential to become one of the next
major copper deposits, critical for meeting the increasing need for this red metal.
Neither the Canadian Securities Exchange nor its Market Regulator (as that term is defined
in the policies of the Canadian Securities Exchange) accepts responsibility for the adequacy
or accuracy of this release.
On Behalf of the Board of Giant Mining Corp.
“David Greenway”
David C. Greenway
President & CEO
For further information, please contact:
P: 1 (236) 788-0643
VISIT OUR WEBSITE FOR MORE DETAILS
www.giantminingcorp.com
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