Mr. David Greenway reports

GIANT MINING SOIL SAMPLING EXPANDS MINERALIZED BRECCIA FOOTPRINT WITH ANOMALOUS COPPER AND SILVER AT MAJUBA HILL COPPER-SILVER-GOLD PROJECT

Giant Mining Corp.'s results from 96 new soil samples have extended the footprint of the copper- and silver-mineralized breccia bodies identified in the 2024/2025 core drilling programs.

Twenty-one samples out of the 96 ballpark soils returned greater than 100 parts per million copper with a maximum value of 397 parts per million copper. Twenty-four out of the 96 returned greater than two parts per million silver with a maximum of 9.5 parts per million silver (see Table 1).

The 96 samples in the ballpark soil survey were collected to fill in a gap in the existing 3,412-sample soil grid. The anomalous copper results outline a zone with potential to extend the footprint of copper mineralization up to 1,000 feet eastward.

David Greenway, president and chief executive officer of Giant Mining, commented: "These new soils demonstrate the potential for expanding the Majuba Hill mineralization. Our technical program continues to expand the geologic framework that supports our drill planning and improvements in the geological model by Respec. I am excited to proceed to the next phase of drilling."

Significance of soil results

Multiple copper-in-soil zones greater than 100 parts per million copper are oriented northwest. These zones generally align with the northwestern fault corridors that are emerging as fundamental controls to the breccia bodies in the southern breccia zone and the northern breccia zone. Additionally, multiple silver-in-soil zones greater than 1.1 parts per million silver are also aligned along the northwestern fault corridors. The silver zones coincide with the copper as well.

The multiple overlapping copper, silver, fault corridor zones and breccia body zones are the same as the overlapping features at the southern mineralized breccia body, where the company has reported on numerous copper and silver intersections in drilling, including MHB-30, which assayed (Sept. 24, 2024, news release):

• 218.0 feet (66.4 metres) of 1.35 per cent copper and 73.4 grams per tonne silver from zero to 218 feet;
• Including: 74.0 feet (22.6 metres) of 2.6 per cent copper and 30.1 grams per tonne silver from 140 to 214 feet (42.7 to 66.2 metres).

Majuba Hill's critically important characteristics are as follows.

Location:  Nevada, United States -- a globally top-ranked mining jurisdiction, ranked No. 1 in the Fraser Institute's 2022 annual survey of mining companies

Project size:  9,684 acres

Infrastructure:  The Majuba Hill property is located 113 road kilometres (70 miles) southwest of Winnemucca, Nev., and 251 kilometres (156 miles) northeast of Reno. It is accessible through well-maintained county roads from the Imlay, Nev., exit on U.S. Interstate 80, followed by a 23-mile drive west. People, roads, power and water are fundamental considerations for infrastructure, and Majuba Hill already benefits from a strong foundation in all these areas. This existing infrastructure provides a significant advantage, offering substantial cost savings compared with more remote projects.

History:  historical producer

Drilling:  approximately 89,395 feet of drilling to date; rough replacement value of drilling $12.1-million (U.S.) using current costs

Mineralization:  The project shows indications of a potentially large copper-silver-plus-or-minus-gold-mineralized body with many features in common with both large porphyry copper, silver and gold projects.

Expandability:  The IP survey, deep drilling and stepout drilling indicate significant expansion potential, with mineralization open in all directions.

Fully financed:  secured financing for next phase of drilling at Majuba Hill

Quality assurance/quality control (QA/QC) measures and 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, Nev. ALS Labs then securely transports the prepared pulps to its analytical lab in North Vancouver, B.C.

Drill core samples are sawn in half lengthwise and one-half is placed in labelled cloth sample bags. All drill, rock and soil 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 per cent of the submitted samples are drill duplicates and copper-gold-porphyry commercial standard reference material pulps. The remaining pulps are retrieved from ALS Labs and retained in the company's secured facility.

Qualified person

The scientific and technical information contained in this news release has been reviewed and approved by E.L. (Buster) Hunsaker, CPG No. 8137, a non-independent consulting geologist who is 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.

We seek Safe Harbor.