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Giant Mining Expands Scope with Majuba Hill with ExploreTech AI-Driven Drill Targeting at Majuba Hill, Nevada

Exploration Programs

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Press Release November 13, 2025

Giant Mining Expands Scope with Majuba Hill with

ExploreTech AI-Driven Drill Targeting at Majuba Hill,

Nevada

VANCOUVER, BC — November 13, 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 an expansion of its

collaboration with Exploration Technologies , Inc. (“ExploreTech”) to

enhance drill targeting at the Majuba Hill Copper-Silver-Gold Project in Pershing

County, Nevada. This initiative strengthens the Company’s ongoing exploration

and deposit-expansion strategy for its flagship project.

Following a series of encouraging high-grade copper intercepts from the 2024–

2025 core drilling programs, Giant Mining is advancing to the next phase of

exploration to better define the scale of the Majuba Hill mineralized system.

Majuba Hill continues to display features characteristic of a significant porphyry-

style copper system located within one of the world’s most mining -friendly

jurisdictions.

David Greenway, CEO of Giant Mining, stated: “Momentum at Majuba Hill

continues to build. With some of our strongest intercepts to date and advanced

AI-supported targeting, we are confident the ongoing work is improving our

understanding of the system and advancing Majuba Hill toward potential

resource definition. This program is about unlocking value — and we believe we

are just getting started.”

ExploreTech’s Inverter and Driller AI platforms, the same technologies that

guided hole MBH -036 into a newly identified mineralized zone —will now be

deployed across expanded northern and eastern targets. ExploreTech’s AI-

driven methods integrate geophysical, geochemical, and geological datasets to

improve predictive accuracy, refine targeting, and increase discovery efficiency.

Recent drill holes MBH-30 and MBH-32 returned high -grade copper

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mineralization consistent with a robust porphyry system. Combined with

structural interpretation and ongoing AI -assisted geological modeling, these

results have prompted the Company to expand drilling operations and advance

toward defining a maiden resource estimate.

Intersected tourmaline-matrix porphyry breccias with copper mineralization in

multiple holes support a working model of a laterally extensive system at Majuba

Hill. Ongoing drilling and 3D integration are planned to assess continuity and

potential scale, alongside increasing U.S. critical-minerals demand.

Tyler Hall, PhD, Co-Founder and President of ExploreTech, commented:

“Inverter and Driller are designed to bring clarity and precision to deep

exploration targeting. The results at Majuba Hill demonstrate how technology

can accelerate understanding of complex mineral systems and help companies

like Giant Mining make smarter, faster drilling decisions.”

Understanding Breccia and Its Importance

Breccia is a type of rock composed of broken mineral fragments cemented by a

fine-grained matrix—essentially nature’s version of concrete—formed by intense

geological processes such as faulting or hydrothermal activity. At Majuba Hill,

these breccia zones host high concentrations of copper and silver, making

them critical for identifying and prioritizing high-potential drill targets.

As previously indicated in the July 15, 2025, news release , Giant Mining

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intersected thick intervals of near-surface oxide copper mineralization at Majuba

Hill, significantly expanding the Mineralized Breccia Zone. Results from holes

MHB-33, MHB-34, and MHB-35 confirmed strong copper grades and continuity

within breccia-hosted zones. These findings reinforced the project's potential as

a strategic domestic copper supply source and laid the groundwork for the

current breccia study, which aims to refine drill targets and accelerate

advancement into Phase 2 of exploration.

Figure 1: MHB-34 Mineralized Breccia: Chalcopyrite, Cuprite and Native

Copper in Breccia. 1540-1545 feet/0.62% Cu.

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Figure 2: Drill Hole Locations with Cross Section Locations.

Majuba Hill’s critically important characteristics are as follows:

Figure 3: Imaged from Corporate Presentation at GiantMiningCorp.com

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

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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. Approximate

replacement value of drilling USD $12.1 Million using

current costs.

Mineralization:

The project exhibits characteristics of a large Cu –Ag±Au

mineralized system, sharing many features with major

porphyry copper-gold-silver deposits.

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 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.

This news release is not intended to constitute an offer, invitation, or solicitation for the

sale or purchase of securities in Australia or in any other jurisdiction. Admission to quotation

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on the National Stock Exchange of Australia (“NSX”) does not imply that the NSX or any

regulator endorses the merits of the Company or its securities.

On Behalf of the Board of Giant Mining Corp.

“David Greenway”

David C. Greenway

President & CEO

For further information, please contact:

E: [email protected]

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 u ndue reliance on these forward ‐looking

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. Company has utilized artificial intelligence (“AI”) tools and

modeling in its exploration targeting, such technologies are emerging and

unproven in mineral exploration. There can be no assurance that the use of AI

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will improve exploration outcomes, result in discoveries, or provide results

consistent with management’s expectations. 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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