Tertiary Minerals Reports Highest-grade Silver-copper Intersection at Mushima North Project in Zambia

05:45 AM EDT, 09/17/2026 (MT Newswires) -- Tertiary Minerals (TYM.L) reported its highest-grade silver-copper intersection at the Mushima North project in Zambia, based on results from the recent phase 4 drill program at the Discovery Zone within Target A1. All four holes intersected near-surface silver-copper-zinc mineralization, with the highest result showing 82 meters at 89 grams per tonne silver, 0.20% copper, and 0.38% zinc from 8 meters downhole, according to a Thursday filing. The mineral exploration and development company said additional laboratory analytical results are expected in the coming weeks.