Kalgoorlie Gold Mining Launches 10,750m Aircore Drilling Campaign at Pinjin Project

5 min read | July 09, 2026 12:03 AM AEST | By Anjali Anand

Kalgoorlie Gold Mining Limited has commenced a major aircore drilling campaign at its Pinjin project, focusing on critical geological structures within the Laverton Tectonic Zone. This initiative is pivotal for unlocking potential gold resources in a highly prospective region renowned for its rich gold deposits. Market participants are closely following the developments due to the strategic value of the area and the promising prospects for significant mineral discoveries.

Key Points

  • Kalgoorlie Gold Mining Limited (ASX:KAL)
  • Initiation of a 10,750-meter aircore drilling program at the Pinjin project
  • Program includes up to 225 drill holes with an expected duration of six weeks
  • Investors should monitor assay results and upcoming reverse circulation (RC) drilling updates

Kalgoorlie Gold Mining Targets the Laverton Tectonic Zone

Kalgoorlie Gold Mining Limited, also known as KalGold, has started an extensive aircore drilling program at its Pinjin project, situated roughly 140 km northeast of Kalgoorlie-Boulder. The project lies strategically within the Laverton Tectonic Zone (LTZ), a significant crustal feature that hosts some of the largest gold mines in the Eastern Goldfields. This drilling campaign targets a regional-scale flexure in the LTZ, where major geological reorientations are thought to facilitate mineralising fluid pathways.

The program, consisting of up to 225 holes totaling approximately 10,750 meters, aims to systematically evaluate these geological structures. KalGold’s earlier identification of aeromagnetic anomalies, including demagnetised zones and structural breaks, supports the potential for discovering new gold deposits. The company’s confidence in the LTZ Flexure targets is strengthened by the alignment of observed rock types and structures with their detailed geological interpretations.

Strategic Significance of the Pinjin Project

The Pinjin Gold Project occupies a Tier One location, covering a large portion of the southern Laverton Tectonic Zone, an area noted for its gold production potential with major deposits and mines along the LTZ. KalGold’s proximity to Ramelius Resources’ Rebecca Gold Project, located 25 km to the south and on track for gold production by 2027, further enhances the project’s strategic importance.

KalGold’s exploration at Pinjin forms part of a broader strategy to delineate shallow, potentially open-pittable gold resources at low costs. The company’s focus on LTZ Flexure targets aligns with its objective to expand its resource base and increase shareholder value through targeted exploration.

Drilling Program Details and Anticipated Results

The aircore drilling initiative at Pinjin aims to detect near-surface gold and pathfinder anomalies to guide subsequent reverse circulation (RC) drilling. The nominal drill pattern of 320 x 80 meters is designed to provide thorough coverage of the targeted geological features. KalGold expects the drilling to take about six weeks, with assay results pending due to extended laboratory turnaround times.

In addition to the Pinjin aircore program, RC drilling will soon recommence at the Lighthorse prospect to test strike extensions of gold mineralisation and further investigate gold intercepts from prior drilling. Investors are encouraged to follow updates on these drilling campaigns and any significant findings.

Impact on Kalgoorlie Gold Mining’s Resource Portfolio

KalGold’s ongoing exploration at Pinjin and other Western Australian projects is central to its strategy of growing its gold resource base. The company currently holds a total gold resource exceeding 214,000 ounces, focusing on cost-effective resource definition. The Pinjin project’s location near established gold deposits within a prolific gold-producing region highlights its potential to significantly augment KalGold’s resource inventory.

By emphasizing low-cost exploration and resource delineation, KalGold is well positioned within the competitive gold mining sector. Targeting strategic locations and leveraging geological expertise, the company aims to enhance its resource base and deliver shareholder value through successful exploration outcomes.

Geological Insights and Exploration Approach

The aircore drilling program at Pinjin follows KalGold’s comprehensive geological interpretation of the area. The discovery of previously undocumented subcrop and outcrop of highly sheared granitic gneiss and possibly highly metamorphosed felsic supracrustal rocks adds to the project’s geological significance. These units likely represent the highly sheared margin of the Rebecca Sequence, host rocks to the Rebecca gold deposit.

KalGold’s exploration strategy, informed by these geological findings, reinforces confidence in the LTZ Flexure targets. The company’s systematic testing approach aims to identify new mineralisation pathways and deepen understanding of the region’s geological potential.

Upcoming Milestones and Investor Guidance

As KalGold advances its aircore drilling at Pinjin, key milestones include the program’s completion in approximately six weeks, followed by assay result analyses. These results will provide vital information on gold mineralisation presence and inform future exploration, including RC drilling.

Investors should also track developments at the Lighthorse prospect, where RC drilling will resume shortly. Outcomes from these drilling activities will be critical in shaping KalGold’s exploration strategy and resource growth plans. The potential for significant discoveries and resource expansions remains a key focus for investors.

Kalgoorlie Gold Mining’s Wider Project Portfolio

Beyond Pinjin, KalGold’s exploration portfolio includes several promising Western Australian projects. The Bulong Taurus Project, situated 35 km east of Kalgoorlie-Boulder, contains the outcropping La Mascotte gold deposit, where KalGold has defined a JORC Code (2012) Inferred Mineral Resource Estimate of 3.61 Mt at 1.19 g/t Au for 138,000 ounces. Alongside the Central Yandal Gold Project, these assets highlight KalGold’s commitment to expanding its resource base and exploring high-potential regions.

KalGold’s strategic emphasis on low-cost exploration and resource definition positions it as a competitive entity in the gold mining industry. Leveraging geological expertise and focusing on key projects, the company aims to achieve sustainable growth and enhance shareholder value through successful exploration outcomes.


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