Giant Mining Corp. announced that all core from drill hole MHB-34, completed to a total depth of 1,963 feet (598.3 metres)- has been sampled and submitted to ALS Global Services ("ALS Labs") for analysis. This hole was part of the Company's Phase 1 Spring 2025 Drill Program (the "Core Program"), which comprised five diamond drill holes totaling 5,484.5 feet (1,671.68 metres) at the Majuba Hill Porphyry Copper-Silver-Gold Project ("Majuba Hill"), located in Pershing County, Nevada.

The Phase 1 program was designed to expand known zones of copper mineralization and advance the Majuba Hill project toward completion of a Mineral Resource Estimate (MRE). Hole MHB-32, the first of the five holes drilled, returned two significant copper-mineralized zones within a broader interval of 379.5 feet (115.7 metres) grading 0.33% Cu and 16.97 ppm Ag. Notably, the results included 169.5 feet of 0.41% Cu, with higher-grade intervals of 40 feet at 1.36% Cu and 10 feet at 4.36% Cu, indicating that mineralization extends deeper and farther north than previously known.

The presence of visible native copper beyond 1,850 feet, alongside cuprite and chalcopyrite, is a powerful indicator of the scale and strength of the mineralized system at Majuba Hill. This hole reinforces belief that Majuba Hill is evolving into a world-class copper, silver, and gold discovery. Located in a top-tier mining jurisdiction with excellent infrastructure, this project is uniquely positioned to contribute to America's clean energy transition and critical minerals independence.

The company eagerly await the assay results from ALS Labs and look forward to advancing 2025 exploration program. Visible native copper observed beyond 1,850 feet signals scale and strength at Majuba Hill. Strong presence of native copper, cuprite, and chalcopyrite suggests proximity to a primary copper sulfide zone.

Majuba Hill positioned as a homegrown U.S. critical minerals project with Tier 1 infrastructure advantages. As shown in the accompanying images (Figure 2-5), native copper, cuprite,and chalcopyrite was persistent in the deeper part of MHB-34. 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. 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. Drill core samples are sawn in half lengthwise and one half is placed in labeled cloth sample bags.

Sample bags 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 warehouse to the ALS Labs then securely transported the prepared facility in Elko, Nevada.