Tertiary Minerals PLC (AIM: TYM, OTC: TTIRF) has commenced work to establish a JORC-compliant exploration target at Target A1 within its Mushima North project in Zambia, marking a significant development in the company’s strategic focus on energy transition metals.
The mineral exploration and development company disclosed on 16 December that the assessment will evaluate silver, copper, and zinc mineralisation at the site. The exploration target, which will provide a range of tonnage estimates and grade metrics, is anticipated to be completed during the first quarter of 2026. Completion of the assessment remains contingent upon pending silver assay results from the Phase 3 drilling programme.
Managing director Richard Belcher stated that the decision to produce a JORC-compliant exploration target reflects the continued advancement of Target A1. The assessment will deliver both tonnage ranges and grade estimates whilst enhancing understanding of the prospect’s exploration potential.
Recent operational updates indicate that field activities at Mushima North have encountered weather-related disruptions. The company completed four reverse circulation drill holes, totalling 481 metres, from a planned ten-hole programme before heavier than anticipated rainfall necessitated an early pause to field operations in November.
Tertiary Minerals maintains a strategic portfolio concentrated on mineral resources in Nevada and Zambia, jurisdictions characterised by stable political environments and established mining frameworks. The company’s operational focus centres on the discovery and development of resources critical to the global energy transition.
The forthcoming JORC-compliant exploration target represents a material step in quantifying the commercial potential of the Mushima North asset. Investors will monitor the completion of outstanding assay results and the subsequent resource estimates as key value catalysts for the coming quarter.
