Grafton Resources Initiates Advanced Geophysical Survey at Chilean Gold-Copper Project

Grafton Resources Inc. has commenced an 80 line-kilometre mobile magnetotelluric heliborne survey at its Alicahue Gold-Copper Project in Valparaiso, Chile, with Expert Geophysics Surveys Inc. conducting the operation. The survey, which will cover the entire project area within a single day, represents a significant advancement in the company's exploration strategy, with interpreted results expected in March 2026. MobileMT technology provides three-dimensional imaging of subsurface geologic structures, alteration halos, and contrasting lithologies, while complementary VLF-EM data enhances resolution of shallow features. This combined approach enables identification of deep-seated faults, lithological contacts, and mineral system controls from surface to depths of approximately 1-2 kilometers, depending on local conductivity distribution.

The survey's primary objective is to trace the outline of a potential porphyry center in the southeast concession and vector toward the origin of IOCG vein systems and possible feeder zones to gold and copper vein mineralization previously mapped in the area. According to Campbell Smyth, Chairman of the Company, MobileMT is particularly effective at identifying electrically conductive sulphides potentially linked to mineralized porphyry intrusive centers and resistive bodies representative of intrusions. This technology has become increasingly important in modern mineral exploration as it allows for rapid, non-invasive assessment of large areas with complex geology.

The Alicahue Project represents a strategic asset for Grafton Resources, and the current survey follows established exploration protocols while incorporating cutting-edge geophysical methods. The company's approach combines traditional geological mapping with advanced remote sensing technologies to maximize discovery potential while minimizing environmental impact. The heliborne nature of the survey allows for efficient data collection across challenging terrain without the need for extensive ground disturbance, aligning with responsible exploration practices.

Successful identification of subsurface structures through this survey could significantly advance the project's development timeline by providing precise targets for subsequent drilling programs. The ability to image geological features to depths of two kilometers represents a substantial improvement over traditional surface exploration methods, potentially revealing mineralized systems that were previously undetectable. Investors and stakeholders can access additional information about the company's regulatory filings through SEDAR+, while the original release remains available on NewMediaWire. The survey results will be crucial for determining the next phases of exploration at Alicahue, potentially validating the property's prospectivity for significant gold and copper mineralization.