Sego Resources intercepts porphyry-related phyllic alteration at Cuba zone, 1200m northeast of the Billy Zone porphyry copper discovery made in December 2025

Sego Resources has announced the interception of porphyry-related phyllic alteration at its Cuba zone, positioned 1200 meters northeast of the company's Billy Zone porphyry copper discovery made in December 2025. This development represents a significant expansion of the known mineralized footprint and provides strong geological evidence for a potentially larger porphyry copper system.

The identification of phyllic alteration at the Cuba zone is particularly significant as this type of alteration is a key indicator mineral associated with porphyry copper deposits. Phyllic alteration typically occurs in the outer zones of porphyry systems and often indicates proximity to copper mineralization. The 1200-meter separation between the Cuba zone and the Billy Zone suggests the potential for a substantial mineralized corridor or connected porphyry system.

This exploration success builds upon Sego Resources' December 2025 porphyry copper discovery at the Billy Zone, demonstrating the company's ability to systematically expand its resource base through targeted exploration. The presence of porphyry-related alteration across multiple zones indicates strong geological continuity and enhances the overall project's potential for hosting significant copper resources.

For the broader copper sector, this discovery adds to the growing pipeline of porphyry copper projects at a time when copper demand is expected to surge due to electrification and renewable energy infrastructure development. The expansion of known mineralization at Sego's project positions the company well for future resource definition and potential partnership opportunities as the market seeks new sources of copper supply.