Mr. David Greenway reports

GIANT MINING CORP. STRENGTHENS COMMITMENT TO USA COPPER SUPPLY AMID POTENTIAL TARIFFS

Giant Mining Corp. is continuing its commitment to strengthening the United States domestic copper supply. The company is advancing this initiative with the imminent launch of exploration and development drilling at its flagship Majuba Hill copper-silver-gold deposit in Nevada, United States.

"Our drilling program, adding to over 100-plus previous drill holes and more than 80,000 feet of historical drilling at Majuba Hill, Nevada, underscores our commitment to establishing a secure and sustainable U.S. copper supply," said David Greenway, chief executive officer of Giant Mining. "With the America First strategy and looming tariffs, prioritizing domestic production is more critical than ever. Majuba Hill is poised to be part of the solution."

Threat to national security from imports of copper

On Feb. 25, 2025, President Donald J. Trump signed an executive order titled "Addressing the Threat to National Security from Imports of Copper." The order directs the Department of Commerce, led by Secretary Howard Lutnick, to investigate potential tariffs on copper imports due to national security concerns. The United States currently imports approximately 45 per cent of its copper from major suppliers, including Canada, Mexico, Chile and Peru. Despite domestic reserves in the ground, the United States lags in smelting and refining capacity, with over 50 per cent of global smelting controlled by a single foreign producer.

The administration argues that reducing dependence on foreign copper is crucial for domestic manufacturing, infrastructure and defence industries. This investigation could lead to trade restrictions aimed at boosting U.S. copper production and safeguarding supply chains. The move aligns with broader efforts to enhance American resource independence in critical minerals and strategic industries.

Section 2 -- investigation into the national security impact of copper imports

The Secretary of Commerce shall initiate an investigation under Section 232 of the Trade Expansion Act to assess the national security implications of copper imports in all forms. This includes, but is not limited to, raw mined copper, copper concentrates, refined copper, copper alloys, scrap copper and derivative products. The investigation will evaluate the impact of these imports on domestic production capacity, supply chain security, and the broader economic and defence needs of the United States.

For more information, see the presidential executive order titled "Addressing the Threat to National Security from Imports of Copper."

President Trump from the Oval Office commented: "Like our steel and aluminum industries, our great American copper industry has been decimated by global actors attacking our domestic production. To build back our copper industry, I have requested my Secretary of Commerce, led by Commerce Secretary Howard Lutnick, and the U.S. Treasury to study copper imports and end unfair trade putting Americans out of work. Tariffs will help build back our American copper industry and strengthen our national defence. American industries depend on copper, and it should be made in America -- no exemptions, no exceptions. America First creates American jobs and protects our national security. It's time for copper to come home."

Majuba Hill -- a strategic copper-silver-gold asset in the No. 1 mining jurisdiction

Nevada is the world's premier mining jurisdiction, known for its mining-friendly policies and strong infrastructure. Majuba Hill boasts significant copper-silver-gold mineralization with substantial exploration potential. The company is set to begin an extensive drilling program to further define the deposit and accelerate its development.

Potential copper tariffs and the need for domestic supply

The Trump Administration's consideration of tariffs on copper imports highlights the necessity for a reliable U.S.-based copper supply. Currently, the United States imports large quantities of copper from South America and other regions. If tariffs are imposed, manufacturers and industries relying on copper could experience rising costs and supply chain disruptions.

By advancing Majuba Hill, Giant Mining aims to provide a domestic alternative that secures the U.S. copper supply, mitigates economic vulnerabilities and enhances energy independence.

Copper's role in energy independence and infrastructure

Copper is a cornerstone of modern technology and essential for the transition to renewable energy. In renewable energy, copper is critical for wind turbines, solar panels and battery storage systems. In electric vehicles, EVs require up to four times the copper of conventional vehicles, driving demand. Electrical wiring, water systems and transportation networks all rely on copper. Copper is indispensable to military, aerospace and communications systems.

As the United States considers tariffs on imported copper, developing domestic deposits such as Majuba Hill becomes increasingly critical. Giant Mining is leading the effort to secure a stable and independent copper supply, reinforcing America's infrastructure, energy transition and national security. With drilling set to commence, the company is taking decisive steps to unlock the full potential of this strategic U.S. asset.

Some of Majuba Hill's critically important characteristics are as follows.

Location:  Nevada -- the No. 1 mining jurisdiction on the planet according to the Fraser Institute

Project size:  9,684 acres

Infrastructure:  The Majuba Hill property is 113 road kilometres (70 miles) southwest of Winnemucca, Nev., and 251 kilometres (156 miles) northeast of Reno. Access is by well-maintained county roads from the Imlay, Nev., exit on U.S. Interstate 80 and travelling 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 with more remote projects.

History:  historical producer

Drilling:  83,930 feet of drilling to date; rough replacement value of drilling $10.9-million (U.S.) in development 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 2025 drilling campaign

Qualified person

The scientific and technical information contained in this news release has been reviewed and approved by E.L. (Buster) Hunsaker III, CPG No. 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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