Hammer Metals is set to accelerate exploration with a 3,000m drilling campaign at its Kalman Critical Metals Deposit and other key copper-gold prospects in Mount Isa, aiming to upgrade resources and underpin a maiden Scoping Study.
- 3km Reverse Circulation drilling to start early April 2026
- Focus on upgrading Kalman inferred resources to indicated status
- Scoping Study to integrate Kalman with nearby copper-gold deposits
- Exploration drilling planned at Redback gold-tungsten and Orphan IOCG targets
- Historical data supports significant copper, gold, molybdenum, and rhenium mineralisation
Accelerating Resource Confidence at Kalman
Hammer Metals Limited (ASX:HMX) has announced a significant ramp-up in its exploration activities across its Mount Isa portfolio, with a major drilling program scheduled to commence in early April 2026. Central to this campaign is the Kalman Critical Metals Deposit, where the company aims to convert a substantial portion of its inferred open pit resource into the higher-confidence indicated category. This upgrade is a critical step towards underpinning a maiden Scoping Study that will also incorporate Hammer’s adjacent copper-gold assets such as Overlander and Lakeview.
The planned 3,000-metre Reverse Circulation (RC) drilling program will target under-explored shallow mineralisation at the southern end of Kalman, an area that has historically lacked sufficient drill density. Additionally, deeper drilling at the northern end seeks to extend and infill the resource at depth, potentially expanding the open pit design and improving project economics. The Kalman deposit is notable for its polymetallic nature, containing copper, gold, molybdenum, and the critical metal rhenium, with recent price assumptions reflecting a bullish outlook on these commodities.
Expanding the Copper-Gold Footprint
Beyond Kalman, Hammer Metals is advancing resource evaluation drilling across several promising targets within its Mount Isa tenure. The Blackrock-Mountain View trend, a 10-kilometre mineralised corridor, is poised for its first drilling campaign under Hammer’s stewardship. Historical drill results from this area reveal broad zones of copper-gold mineralisation with notable high-grade intervals, suggesting significant upside potential. The company plans to focus on higher-grade zones initially while assessing the broader lower-grade mineralisation potential.
At the Lady Jenny Mining Lease, Hammer holds an option to earn 80% and will continue drilling to test plunging mineralised shoots beneath a historical open pit. Previous drilling has confirmed substantial copper-gold mineralisation extending beyond the oxide zone historically mined, indicating a more complex and potentially richer system at depth.
Discovery Drilling Targets: Redback and Orphan
Hammer’s exploration ambitions also extend to discovery drilling at two high-priority targets. The Redback prospect, recently returned to 100% Hammer ownership, is a gold-tungsten system with historical shallow drilling and surface sampling indicating strong mineralisation. Noteworthy historic intercepts include 1 metre at 3.17 grams per tonne gold and 0.55 metres at 10.63% tungsten, highlighting its potential as a valuable polymetallic target.
Meanwhile, the Orphan East target represents a large-scale Iron Oxide Copper-Gold (IOCG) system defined by geophysical anomalies and surface alteration signatures. Planned RC drilling will test these anomalies to better understand the mineralisation controls and potential scale of the system, building on previous joint venture geophysical and geochemical work.
Strategic Timing Amid Rising Commodity Interest
Hammer Metals’ Managing Director Daniel Thomas emphasised the strategic timing of the program, citing strong commodity prices and growing demand for critical metals as key drivers. The company’s integrated approach, combining resource upgrades, extensions, and new target testing, positions it well to capitalise on market interest in copper, gold, molybdenum, rhenium, and tungsten.
While weather-related delays have pushed the drilling start to early April, the company anticipates a steady flow of news through mid-2026, including assay results, resource updates, and the commencement of the Kalman Scoping Study. These milestones will be closely watched by investors seeking clarity on the project’s economic potential and Hammer’s broader exploration upside in the prolific Mount Isa district.
Bottom Line?
Hammer Metals’ 2026 drilling campaign could redefine the scale and confidence of its Mount Isa copper-gold portfolio, setting the stage for critical resource milestones and market re-rating.
Questions in the middle?
- Will the Kalman resource upgrade deliver sufficient Indicated tonnes to support a robust Scoping Study?
- How will the exploration results at Blackrock-Mountain View influence Hammer’s overall resource inventory?
- Can discovery drilling at Redback and Orphan unlock new high-grade zones to diversify Hammer’s asset base?