VANCOUVER, BC — TheNewswire – JULY 28, 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 it is continuing to expand on the breccia study completed this Spring for drill hole MHB-30.  The Company will conduct surface mapping and evaluation, supported by advanced A.I. modeling, in preparation for the Company’s upcoming 2025 Phase 2 drill program (the “Drill Program”) at its flagship Majuba Hill Porphyry Copper-Silver-Gold Project (“Majuba Hill”) in Pershing County, Nevada.

Results from the Company’s Phase 1 of the Spring 2025 diamond drilling program (the “Core Program”) confirm strong breccia controls and significant high-grade copper mineralization, aligning with previously identified high-grade intercepts in core holes MHB-30 and MHB-32.

The Study will incorporate data from over 100 previous drill holes totaling 89,395 feet and the geological understanding of Majuba Hill’s breccia-hosted mineralization to generate refined targets for future drilling.

What is Breccia and Why It Matters

Breccia is a type of rock made up of broken fragments of minerals or other rocks that are cemented together by a fine-grained matrix. Think of it like nature’s version of concrete, often formed through intense geological forces such as volcanic eruptions or faulting. In the case of Majuba Hill, this breccia is especially important because it hosts high concentrations of copper and silver. Identifying and understanding these breccia zones helps geologists pinpoint where the richest mineralization is located, allowing Giant Mining to target its drilling more effectively and increase the chances of discovering economically viable copper deposits.

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

David Greenway, CEO of Giant Mining, commented: "The assays from our 2024 and 2025 drill programs continue to exceed expectations, clearly validating the scale, grade, and continuity of the breccia-hosted copper mineralization at Majuba Hill. These results reinforce our belief that Majuba Hill is emerging as one of the most promising domestic copper projects in the United States. With copper now recognized as a national security priority and Nevada, USA — a globally top-ranked mining jurisdiction — providing a stable and supportive environment, the conditions are ideal for Giant Mining to accelerate development. We are fully funded for Phase 2 of drilling, and our technical team — led by Buster Hunsaker — is ready to move forward."

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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:

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 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 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”).

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: info@giantminingcorp.com

P: 1 (236) 788-0643

   

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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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