Giant Mining Corp. Advances Metallurgical Test Work at Majuba Hill Nevada Copper-Silver-Gold Project as Metal Prices Hit Records
(TheNewswire)
VANCOUVER, BC — TheNewswire - 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 toundertake additional metallurgical test work to update and expand uponhistorical metallurgy completed at its Majuba Hill Copper-Silver-GoldProject in Pershing County, Nevada.
The additional metallurgical work will refine theCompany’s understanding of copper, silver, and gold recoveriesacross oxide, transition, and sulphide zones within the Majuba Hillporphyry system.
High-Grade Copper-Silver HistoricalDrill Support
Majuba Hill has demonstrated strong high-grade copperand 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 averaging1.35% Cu and 73.4 g/t Ag. These high-grade intervals highlight thesystem’s strength and reinforce the significance of silver.Currently RESPEC Company LLC is refining the geological model andincorporating silver assays to advance the delineation of thecopper-silver-gold system at Majuba.
David Greenway,President and CEO of Giant Mining . “With Copper, Silver, and Goldrecently hitting all-time highs and analysts suggesting higher pricesare still ahead, Majuba Hill is showing excellent potential as adistrict scale copper-silver project with meaningful gold credits.Historical work indicates copper recoveries of up to 80% and silverrecoveries up to 75% with gold requiring modern recovery methods thatwe intend to evaluate. Updating this work is the natural next step aswe advance Majuba Hill. With strong historic drill results andencouraging early stage, historical metallurgical results, we believecontinued technical work is warranted to further assess themulti-metal potential that is emerging in the Majuba Hill porphyrysystem.”
Figure 1: Historical drill core fromhole MHB-30 (photo for illustrative purposes only). The Company hasnot verified the historical core assays or logging.
All three of the key commodities at the Majuba HillProject copper, silver, and gold, have recently achieved recordall-time highs, underscoring the strength of the market environmentsurrounding the project. According to TradingEconomics.com:
Copper reached an all-time high of US$5.94/lb in July2025 and is currently trading at approximately US$5.21/lb. 1
Silver achieved an all-time high of US$58.85/oz inDecember 2025 and is currently trading around US$57.65/oz. 2
Gold hit an all-time high of US$4,381.58/oz in October2025 and is now trading at approximately US$4,216/oz. 3
Commodity prices are provided for context only and donot imply that the Project has demonstrated economic viability.
Objectives of the PlannedMetallurgical Program
The Company’s metallurgy program aims to:
Assess oxide, mixed, and sulphide mineralizationdomains
Improve the understanding for copper, silver, and goldrecovery processes
Evaluate multi-stage processing options (heap leachand/or flotation and/or vat leaching)
Evaluate downstream silver and gold circuits
Generate new technical data for mineralizationdelineation and future economic studies
Overview of Historical MetallurgicalFinding s
Historic metallurgical test work and studies haveprovided encouraging indications for Majuba Hill’s processingpotential. The findings reinforced the Companies confidence to pressforward and expand the mineralization with the ongoing explorationdrilling program that has focused on defining a resource. Thesehistorical studies while encouraging are early stage. The resultsprovide the basis for proceeding with the comprehensive metallurgicaltesting—the focus of the newly announced program.
Acid vs Cyanide Leach TestingStudy i (2012-Historic Reverse Circulation DrillSamples)
Acid-soluble and cyanide soluble copper and silverrecoveries were evaluated across low, mid, and high-grade material in231 samples.
When adjusting for ferric iron generation typical ofoperating heap-leach systems, overall copper recovery estimatesincreased to:
~60% for low-grade,
~70% for mid-grade,
Laurion Consulting Composite LeachTest i (2013)
A single composite sample grading 0.62% Cu and 34.6 g/tAg tested using sulfuric acid achieved:
~81.1% Cu extraction at 6-mesh, and ~84.6% Cuextraction at 200-mesh over a 14-day leach cycle.
Results suggest Majuba Hill oxide material is amenableto conventional heap-leach processing with copper recovered bySX-EW.
Technical Report for the Majuba Hill Copper ProjectAmended Date: February 4, 2025
Flotation Study (2017 InternalCompany Report for Historic Core Drill Samples)
Comparison study that used copper and silver extractionvia flotation and agitated leach. Bench scale testing that varied thecollector concentration and pH achieved:
44.5% to 74.9% Silver Recovery
Results were compared to traditional heap leach/SX/EWprocess
The metallurgical test work and drilling resultsreferenced in this news release are considered historical in nature.The Company has not independently verified the data, which predatesthe Company’s involvement at Majuba Hill, and the work was notcompleted in accordance with current CIM Definition Standards ormodern QA/QC practices. As such, the results should not be relied uponand are used by the Company solely to guide current and futureexploration and metallurgical programs.
Majuba Hill’s critically importantcharacteristics are as follows:
Location: | Nevada, USA — a globally top-ranked miningjurisdiction, ranked #1 in the Fraser Institute’s 2022 Annual Surveyof 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 (156miles) northeast of Reno. It is accessible via well-maintained countyroads from the Imlay, Nevada exit on U.S. Interstate 80, followed by a23-mile drive west. People, roads, power, and water are fundamentalconsiderations for infrastructure, and Majuba Hill already benefitsfrom a strong foundation in all these areas. This existinginfrastructure provides a significant advantage, offering substantialcost savings compared to more remote projects. |
History: | Historical Producer |
Drilling: | Approximately 89,395 feet of drilling to date. Roughreplacement value of drilling USD $12.1 Million using currentcosts. |
Mineralization: | The project shows indications of a potentially large Cu– Ag +/- Au mineralized body with many features in common with bothlarge porphyry copper, silver, and gold projects. |
Expandability: | The IP survey, deep drilling, and step-out drillingindicate significant expansion potential, with mineralization open inall directions. |
Fully Financed: | Secured funding for next phase of drilling at MajubaHill |
Qualified Person
The scientific and technical information contained inthis news release has been reviewed and approved by E.L. “Buster”Hunsaker III, CPG 8137, a non-independent consulting geologist who isa “Qualified Person” as such term is defined under National Instrument 43-101 – Standardsof Disclosure for Mineral Projects ( “NI 43-101” ) .
About Giant Mining Corp.
Giant Mining is focused on identifying, acquiring, andadvancing late-stage copper and copper/silver/gold projects to meetthe growing global demand for critical metals. This demand is drivenby initiatives like the Green New Deal in the United States andsimilar climate-focused programs worldwide, which require substantialamounts of copper, silver, and gold for electric vehicles, renewableenergy infrastructure, and the modernization of clean and affordableenergy systems.
The Company’s flagship asset is the Majuba HillCopper, Silver, and Gold District, located 156 miles (251 km) fromReno, Nevada. Majuba Hill benefits from a mining-friendly regulatoryenvironment and strong local infrastructure. While still anexploration-stage asset, the geological footprint and scale ofmineralization indicate that further work is clearly justified andthat the system may host significant copper potential.
Neither the Canadian SecuritiesExchange nor its Market Regulator (as that term is defined in thepolicies of the Canadian Securities Exchange) accepts responsibilityfor 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:
E: info@giantminingcorp.com
P: 1 (236) 788-0643
VISIT OUR WEBSITE FOR MORE DETAILS
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Forward-Looking Statements
This news release contains certainforward ? looking information. Such informationinvolves known and unknown risks, uncertainties and other factors thatmay cause actual results, performance or achievements to be materiallydifferent from those implied by statements herein, and therefore thesestatements should not be read as guarantees of future performance orresults. All forward ? looking statements arebased on the Company’s current beliefs as well as assumptions madeby and information currently available to it as well as other factors.Readers are cautioned not to place undue reliance on theseforward ? looking statements, which speak only as ofthe date of this press release. Due to risks and uncertainties,including the risks and uncertainties identified by the Company in itspublic securities filings, actual events may differ materially fromcurrent expectations. These statements involve known and unknownrisks, including exploration, metallurgical, permitting,environmental, commodity price, and market risks. The Companydisclaims any intention orobligation to update or revise any forward ? looking statements, whether as a result of new information, futureevents or otherwise.
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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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