Giant Mining Advances Majuba Hill Copper Project with Updated 3D Modeling

Giant Mining Corp. has continued its engagement with RESPEC Company LLC to incorporate drilling data from the company's 2024-2025 core program into the Majuba Hill Copper Project 3D Model. The updated interpretation will refine breccia body geometry, evaluate project potential, and guide future drilling strategies for the Nevada-based copper-silver-gold asset.

David Greenway, President and CEO of Giant Mining, stated that continuing the engagement with RESPEC is a critical step in advancing Majuba Hill. The integration of latest core data strengthens the project's potential and provides a clear path for future drilling, metallurgical studies, and evaluation of new targets. The work is essential for unlocking Majuba Hill's full potential as a significant mineral asset.

RESPEC's technical review will incorporate results from drill holes MHB-30 through MHB-36, refining breccia body geometry and evaluating the impact of new findings on project potential. The review will also guide the company's strategy for further drilling, determine timing of metallurgical studies, and support evaluation of new target zones including the Northern Breccia, Ball Park Breccia, and 789 Resistivity Target.

Over the next three to five weeks, RESPEC will consider changes the new improved model provides for economic potential, integrate recent drilling into the 3D model, improve breccia body geometry, incorporate silver into the exploration model, and evaluate additional target zones. The updated interpretation will provide Giant Mining with a stronger technical foundation while highlighting potential of new target zones across the property.

The results support the company's broader strategy of advancing Majuba Hill as a key domestic source of copper and silver at a time of heightened U.S. demand for secure, reshored supply chains. The project's location in Nevada, a top-ranked mining jurisdiction, combined with existing infrastructure and significant expansion potential, positions it as strategically important for meeting growing critical mineral demands.

The scientific and technical information has been reviewed and approved by E.L. "Buster" Hunsaker III, CPG 8137, a qualified person as defined under National Instrument 43-101. The company utilizes a quality assurance/quality control program using best industry practices, with samples transported to ALS Labs facilities for analysis.