Kpali Drilling Yields 1m at 20.66g/t and 19m at 2.93g/t Gold Intercepts

Robust Gold Mineralisation Extended at Kpali

Castle Minerals Limited has announced encouraging results from its latest reverse circulation (RC) drilling campaign at the Kpali prospect in Ghana’s Upper West Region. The 23-hole, 2,793-metre program successfully extended two major gold-bearing lodes both along strike and to depth, confirming the continuity and robustness of mineralisation in this emerging West African gold district.

Notable intercepts include a standout 1 metre at 20.66 grams per tonne (g/t) gold from 41 metres depth, alongside longer intervals such as 19 metres at 2.93 g/t gold from 77 metres. These results reinforce the presence of two closely aligned, north-south striking sub-parallel lodes – the higher-grade hangingwall lode and the footwall lode – which have now been delineated over a strike length of approximately 650 metres and to depths exceeding 120 metres.

Strategic Location in a Prospective Gold District

The Kpali Gold Project sits at the convergence of two major Birimian greenstone belts, the Bole-Bolgatanga and Wa-Lawra belts, along with three significant regional structures known to host gold mineralisation. This geological setting places Kpali in the same emerging gold district as the 5.1 million ounce Namdini and 2.8 million ounce Black Volta gold projects, underscoring the prospectivity of the region.

Castle’s Executive Chairman, Stephen Stone, highlighted that the latest drilling results not only extend the high-grade hangingwall lode 80 metres further north but also confirm strong mineralisation in the footwall lode to at least 120 metres depth. He emphasised that the project continues to grow in stature, with mineralisation yet to be closed off in several directions.

Broader Exploration and Upcoming Results

In addition to Kpali, Castle has completed drilling at the Bundi prospect, located 4 kilometres north, with assay results expected in early July 2025. A separate ten-hole RC program at the Kandia Gold Project, approximately 110 kilometres northeast, is also pending results by mid-July. Both prospects form part of Castle’s broader exploration strategy in northern Ghana, which includes planned auger drilling campaigns starting in July to firm up existing targets and generate new ones.

Looking ahead, follow-up RC drilling at Kpali and Kandia is scheduled for September 2025, subject to rig availability and seasonal weather conditions. The company has also commissioned high-resolution aeromagnetic surveys and detailed structural interpretations to guide step-out exploration across its tenure, aiming to uncover additional mineralised zones.

Implications for Castle Minerals and the Region

The Kpali prospect’s expanding mineralisation footprint and high-grade intercepts reinforce Castle Minerals’ position in a rapidly evolving gold province. The project’s location in a geologically fertile area with limited prior exploration offers significant upside potential for the discovery of a new West African mining camp. Castle’s methodical approach combining drilling, geophysics, and structural analysis positions it well to capitalise on this opportunity.

While the results are promising, the company cautions that true widths of mineralisation are yet to be determined, and some drill holes required redrilling due to technical issues. Moreover, pending assay results from Bundi and Kandia will be critical to refining resource estimates and confirming economic viability.