Wedoany.com Report-Nov. 3, Tertiary Minerals is set to begin phase-three drilling at the Target A1 silver-copper-zinc prospect within the Mushima North project in Zambia. The project is located in Zambia’s iron-oxide-copper-gold (IOCG) region, approximately 28 km east of the Kalengwa copper-silver mine, which is undergoing redevelopment. Mushima North is operated through Copernicus Minerals, a group company 90% owned by Tertiary Minerals (Zambia) and 10% by local partner Mwashia Resources.

All necessary permits have been secured for phase-three drilling at the Target A1 prospect, and the drilling contractor is preparing to mobilise to the site.

Target A1 is a polymetallic prospect, and the upcoming drilling programme will involve around 1,000 meters of reverse circulation drilling. The primary objectives are to test for additional lateral extensions of known mineralisation, particularly to the north, where high-grade silver and copper were previously identified. The drilling will also assess continuity between widely spaced drill lines and explore depth extensions of the mineralisation.

This phase follows the completion of phase-two drilling in mid-2025, which yielded notable intersections. Key results included 58 meters grading 49 g/t silver, 0.26% copper, and 0.16% zinc (72 g/t silver equivalent or 0.94% copper equivalent) from an 8-meter downhole. Within this interval, a 20-meter section returned 86 g/t silver, 0.44% copper, and 0.24% zinc from 46 meters downhole, while a 9-meter interval recorded 124 g/t silver, 0.73% copper, and 0.25% zinc (185 g/t silver equivalent or 2.40% copper equivalent) from 57 meters downhole, ending in mineralisation.

All permits for phase-three drilling have been secured, and the contractor is preparing to mobilise. Work on access roads and drill pads is already underway to ensure smooth commencement of the programme.

Tertiary Minerals Managing Director Richard Belcher commented: “We are delighted that we will be drilling again at Target A1 this season. Drilling before the rains, rather than waiting until the next dry season in March–April, shows our resolve to aggressively advance this project and add shareholder value. Target A1 now has a surface footprint of approximately 450m by 400m, with mineralisation intersected to a vertical depth of up to 84m. However, the mineralisation remains open to the north/north-west, south/south-east, and at depth. This drill programme will test the potential continuation of mineralisation along strike and at depth, as well as providing additional infill drilling. This work is aimed at bringing us closer to our goal of producing a maiden mineral resource in the next 12 months. We eagerly await the start of the drilling programme and I look forward to providing updates in the coming weeks.”

The phase-three drilling at Target A1 is a key step in evaluating the project’s full potential and advancing toward establishing a maiden mineral resource. The programme is expected to provide important data for resource modelling, supporting Tertiary Minerals’ strategy to unlock shareholder value and progress Mushima North toward development.