Mr. David Greenway of Giant Mining reports

GIANT MINING CORP. ENTERS INTO OPTION AGREEMENT TO EARN UP TO 100% OF THE REDHILL PROPERTY, BRITISH COLUMBIA

Giant Mining Corp. has entered into an option agreement dated April 21, 2026, with Homegold Resources Ltd., Johan Thom Shearer Ltd. and Bessor Minerals Inc., pursuant to which the company has the right to earn up to a 100-per-cent interest in the Redhill property, located in the Ashcroft area of British Columbia within the Kamloops mining district.

David C. Greenway, president and chief executive officer of Giant Mining, commented: "In our ongoing pursuit of growth and value creation, the Redhill property represents a compelling prospective addition to our portfolio of copper-focused assets. Its favourable location, established mineralization and historical drilling results provide a strong foundation for further exploration. We believe this project aligns well with our strategy of advancing high-potential assets in stable mining jurisdictions and positions the company to benefit from increasing global demand for copper and critical metals."

About the Redhill property

The Redhill property is located south of Ashcroft, B.C., within the Kamloops mining district, and is accessible through the Trans-Canada Highway. The property comprises 18 mineral claims totalling approximately 4,736.38 hectares (11,703 acres) and represents a large, contiguous land package in a well-established mining region.

The property hosts volcanogenic massive sulphide (VMS) mineralization. Historical exploration, including work by Teck Resources Ltd., identified multiple zones of hydrothermal alteration and copper mineralization. Mineralization occurs within sericite-altered felsic volcanic rocks and includes sulphide assemblages consisting of pyrite, pyrrhotite and chalcopyrite in stringer and semi-massive sulphide zones.

Drilling conducted by Bessor Minerals in 2022 reported drill intercepts of:

• 6.9 metres (22.6 feet) grading 0.61 per cent copper and 0.55 per cent zinc;
• 2.32 metres (7.6 feet) grading 0.56 per cent copper.

The geological setting, combined with historical exploration results, indicates potential for additional mineralization along strike and at depth. The property remains underexplored, with multiple target areas identified for follow-up exploration.

The company considers the historical exploration results referenced in this news release to be relevant to assessing the potential of the Redhill property. However, readers are cautioned that these results were not prepared by the company and a qualified person has not performed sufficient work to verify such historical information. Accordingly, such information should not be relied upon as an indication of future performance or results.

Local geology

The Redhill property covers a bimodal sequence of mafic and felsic volcanic rocks, together with associated volcano-sedimentary and intrusive units. The geological setting is interpreted as a shallow, subaqueous island arc volcanic assemblage, a setting commonly associated with VMS deposits containing copper, zinc, silver and gold.

Geological interpretations for the VMS target area are based on work completed by Teck Resources Ltd. (Evans, 1999), which identified volcanic sequences designated H1, H2 and H3.

These interpretations are supported by subsequent geophysical surveying, including a transient electromagnetic (TEM) survey (Woods, 2006), as well as diamond drilling.

The company considers this historical geological information to be relevant to the current understanding of the property; however, a qualified person has not performed sufficient work to independently verify data. Accordingly, such information should not be relied upon as an indication of future exploration results.

There is no assurance that further exploration will result in the delineation of mineral resources.

Option agreement terms

Under the terms of the agreement, the company may earn a 100-per-cent interest in the property by making cash payments and incurring exploration expenditures as follows:

Cash payments:

• $20,000 upon execution of the agreement (paid);
• $25,000 on or before the first anniversary;
• $30,000 on or before the second anniversary;
• $40,000 on or before the third anniversary;
• $50,000 annually from the fourth to the ninth anniversary (inclusive);
• $500,000 on or before the 10th anniversary.

Exploration expenditures

The company must incur exploration expenditures on the property as follows:

• $100,000 on or before the first anniversary;
• $150,000 on or before the second anniversary;
• $150,000 on or before the third anniversary;
• $200,000 on or before the fourth anniversary;
• $300,000 on or before the fifth anniversary.

Any excess expenditures may be carried forward to subsequent periods.

Completion of the transaction remains subject to customary conditions, including regulatory approvals.

Market awareness agreements

The company has engaged Capitaliz Marketing Inc. to provide investor awareness and digital marketing services, including digital advertising, content development, and co-ordination with third party publishers and content creators. The engagement has an initial term of three months anticipated to commence May 4, 2026, continuing month to month thereafter. A campaign budget of $200,000 has been allocated, payable in cash, with no equity-based compensation, success fees or performance-based compensation payable. All activities are conducted under the company's control and oversight in compliance with applicable securities laws and CSE policies. Capitaliz is at arm's length to the company and Capitliz and its principal do not own any shares of Giant Mining. Its principal, Jeff Leslie, can be reached by e-mail at jeff@capitalizonit.com or by phone at 778-401-7742. Capitliz's address is Suite 704, 595 Howe St., Vancouver, B.C., V6C 2T5.

Furthermore, Giant Mining is pleased to announce it has engaged Blossom Social Inc., a leading mobile app platform and social network for investors recognized by Apple as one of the top 25 apps for 2025, an essential finance app of 2024 and an essential social app of 2025. Blossom specializes in investor engagement and hosts a vibrant community of over 650,000 investors who share verified stock portfolios, trades and investment ideas to help users become better investors. Under the terms of the agreement, Blossom will develop and host earn & Earn educational lessons about Giant Mining on the Blossom mobile app platform. In consideration of the services, Giant will pay $30,000 plus applicable taxes. The initial term of the Blossom agreement concludes upon reaching the maximum total consideration, with the option to continue thereafter on a month-to-month basis. Blossom is located in Burnaby, B.C., Canada, and is an arm's-length party to the company. Blossom may be contacted by e-mail at hello@blossomsocial.ca or by phone at 1-647-574-2927.

Qualified person

The scientific and technical information contained in this news release has been reviewed by Larry Segerstrom, MSc (geology), CPG, a non-independent consulting geologist who is a qualified person as 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 required for electrification, renewable energy infrastructure and modernization of energy systems.

The company's flagship asset is the Majuba Hill copper-silver-gold district, located 156 miles (251 kilometres) from Reno, Nev. Majuba Hill is an exploration-stage project situated in a mining-friendly jurisdiction with established infrastructure, where continuing work is focused on evaluating the scale and extent of copper mineralization.

In addition, the company has entered into an option agreement to earn up to a 100-per-cent interest in the Redhill Property, located south of Ashcroft, B.C., adjacent to the Trans-Canada Highway. The Redhill property hosts VMS mineralization.

Giant Mining is advancing its projects through systematic exploration and technical evaluation, with a focus on responsible exploration practices, technical transparency and long-term value creation.

We seek Safe Harbor.