Giant Mining Corp. Advances Metallurgical Test Work at Majuba Hill Nevada Copper-Silver-Gold Project as Metal Prices Hit Records
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Press Release December 3, 2025
Giant Mining Corp. Advances Metallurgical Test Work
at Majuba Hill Nevada Copper-Silver-Gold Project as
Metal Prices Hit Records
VANCOUVER, BC — December 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 that it is planning to undertake
additional metallurgical test work to update and expand upon historical metallurgy
completed at its Majuba Hill Copper-Silver-Gold Project in Pershing County, Nevada.
The additional metallurgical work will refine the Company’s understanding of
copper, silver, and gold recoveries across oxide, transition, and sulphide zones
within the Majuba Hill porphyry system.
High-Grade Copper-Silver Historical Drill Support
Majuba Hill has demonstrated strong high-grade copper and silver mineralization
in historic drilling, including Hole MHB-30: 74.0 ft averaging 2.6% Cu and 30.1
g/t Ag, within 218 ft averaging 1.35% Cu and 73.4 g/t Ag. These high-grade
intervals highlight the system’s strength and reinforce the significance of silver.
Currently RESPEC Company LLC is refining the geological model and
incorporating silver assays to advance the delineation of the copper-silver-gold
system at Majuba.
David Greenway, President and CEO of Giant Mining. “With Copper, Silver,
and Gold recently hitting all-time highs and analysts suggesting higher prices
are still ahead, Majuba Hill is showing excellent potential as a district scale
copper-silver project with meaningful gold credits. Historical work indicates
copper recoveries of up to 80% and silver recoveries up to 75% with gold
requiring modern recovery methods that we intend to evaluate. Updating this
work is the natural next step as we advance Majuba Hill. With strong historic
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drill results and encouraging early stage, historical metallurgical results, we
believe continued technical work is warranted to further assess the multi-metal
potential that is emerging in the Majuba Hill porphyry system.”
Figure 1: Historical drill core from hole MHB-30 (photo for illustrative
purposes only). The Company has not verified the historical core assays
or logging.
All three of the key commodities at the Majuba Hill Project copper, silver, and
gold, have recently achieved record all-time highs, underscoring the strength of
the market environment surrounding the project. According to
TradingEconomics.com:
• Copper reached an all-time high of US$5.94/lb in July 2025 and is currently
trading at approximately US$5.21/lb.1
• Silver achieved an all-time high of US$58.85/oz in December 2025 and is
currently trading around US$57.65/oz.2
• Gold hit an all-time high of US$4,381.58/oz in October 2025 and is now
trading at approximately US$4,216/oz.3
Commodity prices are provided for context only and do not imply that the Project
has demonstrated economic viability.
1 Copper - Price - Chart - Historical Data - News
2 Silver - Price - Chart - Historical Data - News
3 Gold - Price - Chart - Historical Data - News
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Objectives of the Planned Metallurgical Program
The Company’s metallurgy program aims to:
• Assess oxide, mixed, and sulphide mineralization domains
• Improve the understanding for copper, silver, and gold recovery processes
• Evaluate multi-stage processing options (heap leach and/or flotation
and/or vat leaching)
• Evaluate downstream silver and gold circuits
• Generate new technical data for mineralization delineation and future
economic studies
Overview of Historical Metallurgical Findings
Historic metallurgical test work and studies have provided encouraging
indications for Majuba Hill’s processing potential. The findings reinforced the
Companies confidence to press forward and expand the mineralization with the
ongoing exploration drilling program that has focused on defining a resource.
These historical studies while encouraging are early stage. The results provide
the basis for proceeding with the comprehensive metallurgical testing—the focus
of the newly announced program.
Acid vs Cyanide Leach Testing Studyi (2012-Historic Reverse Circulation
Drill Samples)
• Acid-soluble and cyanide soluble copper and silver recoveries were
evaluated across low, mid, and high-grade material in 231 samples.
• When adjusting for ferric iron generation typical of operating heap-leach
systems, overall copper recovery estimates increased to:
o ~60% for low-grade,
o ~70% for mid-grade,
Laurion Consulting Composite Leach Testi (2013)
• A single composite sample grading 0.62% Cu and 34.6 g/t Ag tested using
sulfuric acid achieved:
o ~81.1% Cu extraction at 6-mesh, and ~84.6% Cu extraction at 200-
mesh over a 14-day leach cycle.
• Results suggest Majuba Hill oxide material is amenable to conventional
heap-leach processing with copper recovered by SX-EW.
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1 Technical Report for the Majuba Hill Copper Project Amended Date: February 4, 2025
Flotation Study (2017 Internal Company Report for Historic Core Drill
Samples)
• Comparison study that used copper and silver extraction via flotation and
agitated leach. Bench scale testing that varied the collector concentration
and pH achieved:
o 44.5% to 74.9% Silver Recovery
• Results were compared to traditional heap leach/SX/EW process
The metallurgical test work and drilling results referenced in this news release
are considered historical in nature. The Company has not independently verified
the data, which predates the Company’s involvement at Majuba Hill, and the
work was not completed in accordance with current CIM Definition Standards or
modern QA/QC practices. As such, the results should not be relied upon and are
used by the Company solely to guide current and future exploration and
metallurgical programs.
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
Drilling:
Approximately 89,395 feet of drilling to date. Rough
replacement value of drilling USD $12.1 Million using current
costs.
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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
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”).
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 benefits from a mining-friendly
regulatory environment and strong local infrastructure. While still an exploration-stage
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asset, the geological footprint and scale of mineralization indicate that further work is
clearly justified and that the system may host significant copper potential.
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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Forward-Looking Statements
This news release contains certain forward-looking information. Such information
involves known and unknown risks, uncertainties and other factors that may
cause actual results, performance or achievements to be materially different
from those implied by statements herein, and therefore these statements should
not be read as guarantees of future performance or results. All forward-looking
statements are based on the Company’s current beliefs as well as assumptions
made by and information currently available to it as well as other factors.
Readers are cautioned not to place undue reliance on these forward-looking
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statements, which speak only as of the date of this press release. Due to risks
and uncertainties, including the risks and uncertainties identified by the
Company in its public securities filings, actual events may differ materially from
current expectations. These statements involve known and unknown risks,
including exploration, metallurgical, permitting, environmental, commodity
price, and market risks. The Company disclaims any intention or obligation to
update or revise any forward-looking statements, whether as a result of new
information, future events or otherwise.
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