Tertiary Minerals Begins Drilling At Mushima North Silver Project In Zambia

Tertiary Minerals Starts Drilling At Target A1

Tertiary Minerals Plc has commenced drilling at Target A1 of its Mushima North Project in Zambia, marking the company’s largest exploration drilling programme in the country to date.

The project is located within Zambia’s prospective Iron Oxide Copper Gold (IOCG) belt, approximately 28 kilometres east of the historic Kalengwa Copper-Silver Mine, which is currently being redeveloped.

The drilling campaign aims to advance the company’s silver oxide discovery while supporting the definition of a maiden mineral resource estimate.

Programme Targets Resource Growth

The company has outlined a 4,000-metre Reverse Circulation (RC) drilling programme, with drill holes planned along east-west lines spaced roughly 100 metres apart.

The programme has three primary objectives:

• Confirm the continuity of the oxide mineralisation to support a maiden JORC-compliant Mineral Resource Estimate.
• Test extensions of the mineralisation to the northwest, southwest and at depth to potentially increase the project’s resource.
• Evaluate additional mineralisation west of Target A1 and at the nearby Target A2 prospect.

Tertiary Minerals currently reports a JORC exploration target of up to 58 million ounces of silver equivalent for the discovery.

Largest Zambia Drilling Campaign To Date

Managing Director Richard Belcher said the programme represents an important milestone for the company.

“This is the largest planned drill programme by the company in Zambia to date to not only support the definition of a mineral resource estimate at Target A1, but also test possible extensions of the mineralisation.”

Belcher added that drilling is now underway, with preliminary analysis of drill chip samples being conducted on-site using portable X-ray fluorescence (pXRF) technology before selected samples are submitted to an independent laboratory.

Laboratory Results Expected In Coming Weeks

The drilling programme is being carried out by Ox Drilling, which previously completed the initial exploration campaign at the project.

The campaign is expected to take between six and 12 weeks to complete.

On-site pXRF analysis will initially assess copper and zinc mineralisation, while selected samples will be submitted to a certified laboratory for independent analysis of:

• Silver
• Copper
• Zinc
• Bismuth
• Antimony
• Gallium

The first batch of samples is scheduled for submission within the coming week, with assay results expected approximately six to eight weeks after submission.

Partnership Supports Exploration

The Mushima North Copper Project is held through Copernicus Minerals Limited, which is 90% owned by Tertiary Minerals (Zambia) Limited and 10% owned by local partner Mwashia Resources Limited.

The project also operates under a technical cooperation agreement with First Quantum Minerals, providing Tertiary Minerals with access to historical exploration data and geological expertise from the region.

Zambia Continues To Attract Mineral Exploration

The latest drilling campaign highlights continued exploration activity across Zambia’s copper belt as companies seek to expand resources of copper, silver and other critical minerals.

If successful, the programme could significantly increase the scale of the Target A1 discovery while advancing the project toward its first formal mineral resource estimate, strengthening Mushima North’s potential as an emerging silver and base metals project in Zambia.