Mount Isa Project Yields Gold Assays up to 3.9g/t and Copper up to 22.9%

Exploration Momentum Builds at Mount Isa

Hammer Metals Limited (ASX – HMX) has delivered a compelling update from its Mount Isa Project in northwest Queensland, where recent fieldwork has defined multiple new gold and copper targets. The company’s extensive tenure in this prolific mining district continues to yield promising anomalies, many of which have never been drill tested.

At the Sisters prospect, in-fill soil and rock chip sampling have confirmed two major anomalies, S1 and S2, with strike lengths of approximately 2km and 1.2km respectively. The S1 anomaly is particularly notable for its semi-coincidence with conductive stratigraphy identified in a 2022 VTEM geophysical survey, suggesting a strong structural control on mineralisation. Peak rock chip assays at S1 include copper grades up to 1.77%, while soil samples returned copper concentrations exceeding 800ppm and gold values up to 18.6ppb.

Green Creek’s Blonsky Prospect Emerges as a High-Grade Target

Further east, the Green Creek area has revealed a new copper-gold target at the Blonsky prospect. Rock chip sampling here returned impressive assays including 3.9g/t gold and 4.54% copper from previously unsampled outcrops. These results validate historical data from the late 1990s, which recorded rock chips with up to 11g/t gold and 5.3% copper. Despite the area’s limited exploration since then, Hammer’s recent soil sampling has identified anomalous gold and copper values, prompting consideration of trenching and drilling programs.

Keyser and Tick Hill – Expanding the Exploration Footprint

At Keyser, located about 7km from Hammer’s flagship Kalman resource, rock chip assays have returned localised highs of 3.5g/t gold and 10.8% copper. Soil sampling is ongoing, with fire assay results pending, and ground electromagnetic surveys planned to better define drill targets. Meanwhile, a review of the historic Tick Hill Gold Mine area has uncovered multiple gold anomalies worthy of follow-up, including a significant >100ppb gold anomaly at Boundary South, situated 15km from Tick Hill in a structurally favourable setting.

Strategic Next Steps and Market Implications

Hammer Metals is advancing its exploration with a suite of geophysical surveys, including detailed magnetics and ground EM, alongside ongoing soil sampling programs. These efforts aim to refine target definitions ahead of drilling campaigns, some of which are already underway at other projects such as Bronzewing in Western Australia. The company’s Managing Director, Dan Thomas, emphasised the under-explored nature of these areas and the potential for Ernest Henry style copper-gold deposits, underscoring the strategic value of Hammer’s Mount Isa tenure.

As assay results continue to flow and geophysical data matures, the market will be watching closely to see if these early-stage anomalies can be converted into significant mineral resources. The combination of historical data validation and new discoveries positions Hammer Metals well in a competitive copper-gold exploration landscape.