Golden Deeps has reported a new round of standout surface assays from its Central Otavi Project in north-eastern Namibia, including copper up to 50.6%, silver up to 7,792 grams per tonne and germanium up to 224 grams per tonne from newly mapped gossans at the Graceland prospect.
The results, drawn from 55 fresh rock-chip samples and backed by 399 new soil samples, have doubled the strike length of the most anomalous corridor to roughly two kilometres by one kilometre.
The richest results come from two freshly identified zones.
At Gossan 1 East, a four-metre-wide breccia in dolomite carrying malachite and chalcocite returned 47.3% copper and 7,792 g/t silver in sample A6EGS40, alongside 13.8% copper, 171 g/t silver and 224 g/t germanium in A6EGS43.
At Gossan 2 North, about fifty metres north of the previously sampled outcrop, sampling delivered 3,179 g/t silver with 26.9% copper and 24.4% lead in A6EGS51; 1,993 g/t silver with 25.9% copper and 23.8% lead in A6EGS52; and 1,139 g/t silver with 31.3% copper and 17.7% lead in A6EGS53.
High-grade copper values persist along the broader Gossan 1 corridor. At G1 West, sample A6EGS48 returned 50.6% copper, while A6EGS47 produced 15.0% copper, 19.4% zinc and 374 g/t silver.
At G1 South, mineralisation remains strongly polymetallic, with results including 3.5% copper, 22.4% zinc, 28.0% lead, and 63 g/t germanium (A6EGS45), as well as up to 30.3% zinc and 27.8% lead with accessory copper and silver (A6EGS46).
Antimony is present across several samples, peaking above 700 g/t in the best G1 East results.
Follow-up groundwork has moved beyond grab samples. The field team has completed trenching and diamond-saw channel sampling across Gossan 1, G1 East and Gossan 2, submitting 254 channel samples for assays that will provide true widths and average grades over the outcrops.
Golden Deeps is also conducting a detailed dipole–dipole induced polarisation and resistivity survey over the main G1 and G2 corridors to image sulphide bodies from the surface to approximately 250 metres in depth, with acquisition targeted for September–October, subject to contractor availability.
The company states that drilling contractors have been identified in-country, with initial drill testing planned once channel and geophysical results are received and targets are modelled.
Management argues the style of mineralisation fits the Otavi Mountain Land’s classic “Tsumeb-type” carbonate replacement system.
Tsumeb, located approximately twenty kilometres north of Graceland, historically produced 27 million tonnes of ore containing 4.3% copper, 10% lead, 3.5% zinc, 95 g/t silver, and 50 g/t germanium.
The germanium tenor at Graceland is a particular focus for the company, which notes strong demand from the semiconductor and photovoltaic industries and points to constrained supply.
Golden Deeps highlighted indicative price comparisons provided in its tables—around US$3,000 per kilogram for germanium, about US$1,200/kg for silver and roughly US$9.80/kg for copper—while emphasising the multi-metal value proposition emerging from the corridor.
Golden Deeps’ Central Otavi Critical Metals Project, acquired to an 80% interest earlier this year, already includes the Border zinc-lead-silver resource and advanced prospects at Driehoek and Kaskara.
Across the broader Otavi portfolio, the company has defined resources at Abenab (vanadium-lead-zinc), Nosib (vanadium-copper-lead-silver with gallium), and Khusib Springs (silver-copper).
It is also prosecuting new targets for copper–silver–zinc–lead, with accessory germanium, gallium, and antimony.
While the reported grades are exceptional, they are derived from selective rock-chip samples and do not by themselves define the size or average grade of any deposit.
The next set of results—channel samples across the gossans and the planned IP/resistivity survey—will determine whether the high-grade surface mineralisation translates into coherent sulphide bodies at depth.
If it does, Golden Deeps expects to move quickly to drill testing on the most prospective targets within the expanded two-kilometre corridor at Graceland.
