Mr. David Greenway reports

GIANT MINING LAUNCHES 2026 EXPLORATION PROGRAM AT MAJUBA HILL COPPER PROJECT IN NEVADA

The 2026 exploration season is under way at Giant Mining Corp.'s Majuba Hill copper project in Pershing county, Nevada. The geologic team has begun systematic mapping and sampling across multiple prospective areas of the property.

The program is designed to strengthen the geological model and prioritize the most prospective breccia-hosted copper targets for coming drilling.

Majuba Hill is a large copper-silver-gold intrusive-related system with over 100 historical drill holes totalling approximately 89,000 feet and a long history of copper production and exploration.

"Launching the 2026 exploration season marks an exciting step forward for the Majuba Hill project," said David Greenway, president and chief executive officer of Giant Mining. "Majuba Hill hosts a large hydrothermal breccia system with demonstrated copper-silver mineralization from prior drilling. Our current program is focused on refining high-priority targets and preparing for the next phase of diamond drilling. With a strong technical team on site and clear exploration targets identified, we believe Majuba Hill represents a compelling opportunity to advance a significant copper system in Nevada."

2026 exploration program under way

The company's geological team has initiated a program of detailed geological mapping, structural interpretation, and surface and underground geochemical sampling, enhanced by a continuing review of all core results. The results will be used to refine high-priority drill targets ahead of the company's diamond drilling program.

As previously announced on Jan. 30, 2026, Giant Mining has planned a multiphase diamond drilling program of up to 10,000 feet (3,048 metres) designed to further evaluate copper-silver mineralization across key target areas.

The company expects to provide additional updates as exploration activities progress.

Phase 1:

• Up to 5,000 feet of diamond drilling;
• Underground mapping and sampling;
• Surface geochemical surveys to refine drill targeting.

Phase 2:

• Up to 5,000 feet of additional drilling.

The 2026 exploration and drill program is building on the company's previous exploration work and drilling across the district. Results from the company's 2024-2025 exploration programs identified multiple mineralized breccia bodies associated with hydrothermal-magmatic tourmaline breccias and breccia pipe margins, which represent priority targets for further drilling.

Several historical drill holes returned elevated copper and silver values with locally anomalous gold, highlighting the potential for additional mineralization within the system. (See the news release dated Jan. 16, 2024.) Drill intercepts returned elevated copper and silver values, as well as intervals of anomalous gold. Mineralization is commonly associated with hydrothermal-magmatic tourmaline matrix breccias and the margins of breccia pipes. Further drilling is required to determine the extent and continuity of mineralization.

Why Majuba Hill

Majuba Hill is in Pershing county, Nevada, approximately 156 miles (251 kilometres) northeast of Reno, within one of the world's most established mining jurisdictions.

Key project characteristics include:

• Large land position covering approximately 9,684 acres;
• Extensive historical drilling database exceeding 89,000 feet;
• Multiple mineralized breccia targets identified;
• Excellent infrastructure, including road access and nearby power;
• Located in Nevada -- one of the world's leading mining jurisdictions.

Quality assurance/quality control

Historical drilling results referenced herein were previously disclosed by the company in accordance with National Instrument 43-101 (Standards of Disclosure for Mineral Projects). Analytical work was performed by ALS USA Inc., an ISO/IEC 17025 accredited prep laboratory located in Elko, Nev. Industry standard quality assurance and quality control procedures included the insertion of certified reference materials, blanks and duplicates at regular intervals within the sample stream. The qualified person has reviewed and verified the data underlying the historical results referenced in this release.

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).

Majuba Hill's critically important characteristics are as follows.

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 benefits from a mining-friendly regulatory environment and strong local infrastructure. While still an exploration-stage asset, the geological footprint and scale of mineralization indicate that further work is clearly justified and that the system may host significant copper potential.

With a strengthened technical framework, supportive jurisdiction and financed exploration program, Giant Mining is focused on advancing Majuba Hill through systematic drilling and technical evaluation. The company remains committed to responsible exploration, technical transparency and creating long-term shareholder value through discovery-focused exploration.

We seek Safe Harbor.