Surefire Resources Uncovers Rising Copper Grades at Copper Hill Project

Exploration Breakthrough at Copper Hill

Surefire Resources NL (ASX: SRN) has reported encouraging results from its maiden geochemical scout drilling program at the Copper Hill project in Western Australia's Mid-West region. The company completed 11 reverse circulation drill holes totaling 672 meters, targeting broad surface copper anomalies identified over a 3km by 2km area.

The standout result comes from drill hole PBRC010, which intersected copper grades rising from 1,695 ppm to a peak of 2,010 ppm (0.2%) between 32 and 62 meters depth. This increase in copper concentration beneath the surface anomaly suggests a strengthening mineralization trend at depth. Notably, sulfur levels reached an impressive 27,270 ppm (2.7%), highlighting the presence of disseminated sulfides within black volcanic meta-sediments.

Geological Significance and Mineralization Vectors

The association of elevated copper and sulfur is a classic indicator of sulfide mineralization, which often hosts economically viable copper deposits. The geological setting, black volcanic-derived meta-sediments with thick disseminated sulfide zones, provides a compelling environment for further exploration. Surefire's interpretation points to a northeast-southwest trending Cu/S corridor, aligning surface and subsurface anomalies, which will guide upcoming exploration efforts.

These findings build on the initial December 2024 drilling results, reinforcing the potential for a significant copper system. The broad zones of anomalous copper, with some intersections extending up to 48 meters above 400 ppm Cu, underscore the project's scale and promise.

Next Steps: Geophysics and Target Refinement

To advance the project, Surefire plans to deploy geophysical techniques including electromagnetics (EM) and induced polarization (IP) surveys. These methods are designed to detect massive sulfide bodies that could represent higher-grade copper deposits. The geophysical data will refine drill targets ahead of the next phase of drilling, which will also include previously untested anomalies such as target T4, delayed due to access issues.

Additionally, rock samples containing disseminated sulfides will undergo petrographic analysis to better understand mineralogy and guide exploration strategy. Managing Director Paul Burton emphasized the early but promising nature of these results, noting the substantial increase in copper grades and the encouraging sulfur association as key drivers for continued work.

Surefire's methodical approach, combining geochemical, geological, and geophysical data, positions Copper Hill as a project to watch in the competitive Western Australian copper exploration landscape.