Mr. David Greenway reports

GIANT MINING EXPANDS SCOPE WITH MAJUBA HILL WITH EXPLORETECH AI-DRIVEN DRILL TARGETING AT MAJUBA HILL, NEVADA

Giant Mining Corp. has expanded its collaboration with Exploration Technologies Inc. to enhance drill targeting at the Majuba Hill copper-silver-gold project in Pershing county, Nevada. This initiative strengthens the company's continuing 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, chief executive officer 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 artificial intelligence platforms, the same technologies that guided hole MBH-036 into a newly identified mineralized zone, will be deployed across expanded northern and eastern targets. ExploreTech's AI-driven methods integrate geophysical, geochemical and geological data sets to improve predictive accuracy, refine targeting and increase discovery efficiency.

Recent drill holes MBH-30 and MBH-32 returned high-grade copper mineralization consistent with a robust porphyry system. Combined with structural interpretation and continuing AI-assisted geological modelling, 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. Continuing drilling and 3-D integration are planned to assess continuity and potential scale, alongside increasing U.S. critical mineral 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 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.

Majuba Hill's critically important characteristics are as follows.

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).

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 kilometres) from Reno, Nev. 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.

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