Kandia Prospect

Kandia section 1104480N showing 24KARC002 (Infill) and 24KARC004 (extension) holes. Grade, width of high-grade and dip appear to be increasing with depth.

Kandia Prospect location within Wa East Region

Castle senior geologist, George Asamoah, inspecting artisanal workings at Kandia 4000-zone

Background

The Kandia prospect was discovered in 2010 during a programme of reconnaissance field mapping. During this programme a large area of previously unknown artisanal gold workings was discovered that comprise three main groups developed over approximately 600m of strike.

These workings occur within altered Birimian age metasediments and schists, that on a regional scale sit on a major granite/sediment contact that can be traced within Castle’s licences for at least 25km.

A sampling and mapping programme was completed along the regional trend of the mineralisation. This work represented the first known systematic gold exploration conducted in this area and identified nine gold anomalies overs 12km of strike.

An initial 15,000m of RC drilling was undertaken to test these anomalies with significant results being returned from an area 3.5km south of the artisanal workings discovered in 2010.

Gold mineralisation at Kandia is hosted within silicified and weakly pyritic sediments (shales and siltstones) and generally forms a regular west dipping zone within a broader sediment package bounded to the east by granite. Aeromagnetic data shows this area as a magnetic low that is interpreted to represent magnetite destruction associated with a widespread alteration halo associated with the mineralising event.

Since the first drilling in 2011 Castle has completed extensive soil sampling, airborne geophysical surveys and drilled 264 RC holes for 19,541m.

Recent Drilling

Drilling at Kandia Gold Prospect, in Upper West Region of Ghana, delivers strong gold intercepts from shallow depth (ASX release 28 January 2025).
All four RC holes at “4,000-Zone” intersected mineralisation including:
- 7m at 3.36g/t gold from 149m within 24m at 1.78g/t Au from 139m (24KARC002)
- 5m at 3.49g/t Au from 82m within 11m at 2.26g/t Au from 79m (24KARC004)
Programme has confirmed continuity and depth extension of mineralisation with grade, mineralised width and dip appearing to increase with depth.
The opportunity at Kandia is to delineate multiple, near-surface open-pitable deposits along the 16km prospective contact.
Next stage is extensional drilling at “4,000-Zone” and focused drilling at several other areas of historical wide-spaced shallow drilling i.e. “8,000-Zone” where artisanal miners are also active.