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Giant Mining Advances Majuba Hill with Completion of 5,484.5 Ft Spring 2025 Drill Program

Exploration Programs

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Press Release May 19, 2025

Giant Mining Advances Majuba Hill with Completion of

5,484.5 Ft Spring 2025 Drill Program

VANCOUVER, BC — May 19, 2025 — Giant Mining Corp. (CSE: BFG | OTC:

BFGFF | FWB: YW5) (CSE:BFG.WT.A) (“Giant Mining” or the “Company”) is

pleased to announce the successful completion of Phase 1 of its 2025 spring diamond core

drilling program ("Core Program") at the Majuba Hill Porphyry Copper-Silver-Gold

Project ("Majuba Hill") in Pershing County, Nevada. Equipment demobilization has

concluded, and the Company is now preparing for comprehensive analysis of drill core

samples, aiming to define geological controls and further delineate mineralization.

A total of five drill holes, MHB-32 through MHB-36, were completed for a combined 5,484.5

feet (1,671.68 meters) of core drilling. This brings the cumulative total of drilling at Majuba

Hill to 89,395 feet (27,247.5 meters), which will significantly enhance the Company’s

geological model and support future deposit development.

Hole ID Type Depth

(m)

Hole

Depth TD Date Collar

Azim Inclination East

NAD27

North

NAD27

MHB-32 Core 271.1 889.5 3/30/2025 190 -50 375800 4503179

MHB-33 Core 285.3 936 4/6/2025 15 -50 375684 4502943

MHB-34 Core 598.3 1963 5/2/2025 90 -45 375474 4503032

MHB-35 Core 181.7 596 5/5/2025 270 -45 375811 4502994

MHB-36 Core 335.3 1100 5/10/2025 220 -70 375843 4502719

Table 1: Majuba Hill 2025 Drill Program Collar Details

The primary objective of the Core Program was to step out from and expand the known

zones of copper mineralization and advance the Majuba Hill Project toward completing a

Mineral Resource Estimate (“MRE”). All drill core was transported to Giant Mining’s secure

core facility in Elko, Nevada, where it was logged, sawn, and sampled by Company

personnel. The samples were submitted to ALS Global Services (“ALS Labs”) for

geochemical analysis, with sample preparation completed at their Elko facility and final

assaying conducted at their laboratory in Vancouver, British Columbia.

David Greenway, CEO of Giant Mining, commented: “The 2025 drill season has been

our most exciting and technically ambitious to date. We began the program with strong

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visual mineralization that exceeded expectations, prompting us to add a fifth drill hole—

MHB-36—guided by AI-assisted geophysical modeling. This AI-predicted target intersected

promising mineralization, suggesting a potential new discovery and was a meaningful step-

out from previously defined zones. Notably, MHB-33 was drilled to a depth of 1,963 feet

and encountered significant native copper, expanding our understanding of the scale and

potential of the Majuba Hill Copper-Silver-Gold system. We now eagerly await assay results

from ALS Labs as we work toward completing an NI 43-101 Mineral Resource Estimate to

support future development plans.”

Key highlights include:

MHB-32 – Starting with a Bang

Core Hole MHB-32 was completed to a total depth of 889.5 feet (271.1 meters). The hole

intersected copper-bearing magmatic-hydrothermal breccias with secondary copper

minerals, including azurite, malachite, and chalcocite. These transitioned into strongly

oxidized copper sulfides, with primary, unoxidized chalcopyrite near the bottom of the hole.

Figure 1: MHB-32 - Azurite, malachite, chalcocite in magmatic-hydrothermal

breccia at 527 to 537 ft (160.-163. m).

This early success confirmed the vertical continuity of the mineralized system and the

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presence of high-potential breccia-hosted copper zones.

Figure 2: MHB-32 – Clast of intrusive with chalcopyrite in

tourmaline/chalcopyrite matrix breccia at 810 ft (246.89 m).

MHB 34 – Native Copper Encounter

Core Hole MHB-34 was drilled to a total depth of 1,963 feet (598.3 meters). The hole

encountered persistent native copper, cuprite, and chalcopyrite mineralization in its deeper

sections, with native copper observed beyond 1,850 feet.

Figure 1: MHB-34 at 1,499 ft (456.9 m) Native Cu on fracture HQ Core, 2.5-

inch (63.5 mm) diam.

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These results indicate a robust porphyry system at depth and suggest proximity to a

primary copper sulfide source.

MHB 36 – An A.I. Driven Step Out Discovery and Potential Deposit Extension

The fifth and final drill hole of the Core Program, MHB-36, was planned for a total depth

(TD) of 1,000 feet (304.8 meters). This hole was designed by Exploration Technologies

(“ExploreTech”) using its proprietary AI-assisted geophysical modeling system to test a

high-potential resistivity anomaly delineated in the southern sector of the Majuba Hill

project area. The AI-driven targeting approach aimed to identify geologically favorable

zones with potential for new copper mineralization beyond the existing mineralization

footprint.

Figure 2: 3D Model of Majuba Hill, showing the five drill collars and

summarized results for MHB-36. Right: Downhole plot of drilling results and

ExploreTech prediction, showing predicted probability of sulfide

mineralization and the true intersection (dashed grey).

Due to the intersection of the sulfides predicted by modeling the hole was extended to

1100 feet (335.28 meters). MHB-36 intersected disseminated and vein-hosted

chalcopyrite mineralization within intrusive and magmatic hydrothermal breccias,

beginning at a downhole depth of 650 feet (198 meters). Mineralization was observed

intermittently beyond 905 feet (274.32 meters), confirming the accuracy of the AI model

and highlighting the potential for further extensions of copper-bearing zones in this

underexplored area.

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Figure 3: MHB-36/935 feet (285 m). Disseminated chalcopyrite in Intrusive.

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

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Infrastructure:

The Majuba Hill property is 113 road km (70 miles)

southwest of Winnemucca, Nevada, and 251 km (156 miles)

northeast of Reno. Access is by well-maintained county

roads from the Imlay, Nevada exit on U.S. Interstate 80,

and traveling westward 23 miles. People, Roads, Power and

Water are the basic elements when considering

infrastructure and Majuba Hill already has a solid

infrastructure foundation for building a large facility which

will provide significant savings compared to more remote

projects

History: Historical Producer

Drilling:

Approximately 89395 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 2025 Drilling Campaign

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

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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.

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

undue 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. 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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