1st Oct 2025 12:42
(Alliance News) - Tertiary Minerals PLC on Wednesday said new results from drilling at the Mushima North project in Zambia show the highest-grade silver and copper drill intersection to date.
The mineral development company focused on deposits in the US, Zambia and northern Europe said results for a further three holes from the phase two follow-up drill programme also extend the mineralisation at the site further to the north by around 100 metres.
Shares in Tertiary Minerals jumped 34% to 0.056 pence in London on Wednesday afternoon.
The near surface mineralisation now extends over an area 450 metres long and up to 400 metres wide, Tertiary Minerals added.
Mushima North is located in the prospective iron-oxide-copper-gold region of Zambia.
The target A1 site is a polymetallic silver-copper-zinc prospect located 28 kilometres to the east of the historic Kalengwa copper-silver mine, which is currently under redevelopment.
"We are thrilled to report not only our best intersection of silver mineralisation so far on this project, but also higher-grade copper mineralisation with individual metre samples returning grades of up to 1.68% copper," said Managing Director Richard Belcher.
"These results further support our bulk tonnage, open pit silver exploration model as well as the additional potential for copper and adds further credence to the significance of this discovery for the company."
By Michael Hennessey, Alliance News reporter
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