Tertiary Minerals PLC has published an exploration target for a silver, copper and zinc prospect in Zambia, estimating it could contain between 15 and 30 million tonnes of mineralisation at an average grade of 40 to 60 grams per tonne silver equivalent.
This is an early-stage estimate of the potential scale of a deposit, and further drilling is needed before the company can confirm whether economic quantities of metal are present.
The target, known as A1, sits within the Mushima North project in northwest Zambia, around 28 kilometres from the historic Kalengwa copper-silver mine, one of the highest-grade copper deposits ever mined in the country.
At the upper end of the range, the target implies up to 58 million ounces of silver equivalent, a figure that also incorporates the copper and zinc content of the deposit.
The AIM-listed miner said the target remains open in several directions and at depth, suggesting further upside, and that several other untested prospects lie within 12 kilometres of A1.
Managing director Richard Belcher said reporting an exploration target marked “a significant milestone for the company on its projects in Zambia” and provided valuable information on the possible future resource potential.
“The modelling will be used to support the planning of the upcoming drill programme with the aim of reporting a maiden Mineral Resource Estimate by the end of 2026.
“These are exciting times for the company as we continue to advance our project portfolio to deliver value to our shareholders. I look forward to providing further updates in due course.”
