Tertiary Minerals show more high grade results from Mushima North

Mining Written by: Jamie Ashcroft 02:19 Fri 18 Sep 2026 --> Proactive has a commercial relationship with Tertiary Minerals PLC. This article was produced independently under Proactive's Editorial Standards Policy . Disclaimer No investment advice About this content Editorial Standards & Policies Share article About this content × About Jamie Ashcroft Jamie Ashcroft, the News Editor for Proactive UK, has developed an impressive career in financial journalism, focusing on the small-cap sector for over fourteen years. Before joining the Proactive team, he was a stockbroker during the global financial crisis, a role that complemented his educational background - a first-class degree in Business and Economics and qualifications in software design and development. As one of the early external hires at Proactive in 2009, Jamie contributed... Read more About the publisher Proactive financial news and online broadcast teams provide fast, accessible, informative and actionable business and finance news content to a global investment audience. All our content is produced independently by our experienced and qualified teams of news journalists. Proactive news team spans the world’s key finance and investing hubs with bureaus and studios in London, New York, Toronto, Vancouver, Sydney and Perth. We are experts in medium and small-cap markets, we also keep our community up to date with blue-chip companies, commodities and broader investment stories. This is content that excites and engages motivated private investors. The team delivers news and unique insights across the market including but not confined to: biotech and pharma, mining and natural resources, battery metals, oil and gas, crypto and emerging digital and EV technologies. Use of technology Proactive has always been a forward looking and enthusiastic technology adopter. Our human content creators are equipped with many decades of valuable expertise and experience. The team also has access to and use technologies to assist and enhance workflows. Proactive will on occasion use automation and software tools, including generative AI. Nevertheless, all content published by Proactive is edited and authored by humans, in line with best practice in regard to content production and search engine optimisation. Tertiary Minerals PLC ( AIM:TYM OTC:TTIRF ) View Price & Profile Tertiary Minerals show more high grade results from Mushima North Published: 02:19 18 Sep 2026 EDT Tertiary Minerals PLC (AIM:TYM, OTC:TTIRF, FRA:TMU) has delineated a roughly 400-metre-long higher-grade silver-copper-zinc zone at its Mushima North project in Zambia, with drilling showing mineralisation continuing beyond the current Exploration Target and remaining open at depth. The strongest reported intersection from the Discovery Zone was 52 metres grading 99 grams per tonne silver, 0.41% copper and 0.43% zinc from 39 metres downhole, equivalent to 130 g/t silver. Within the same hole, a 10-metre interval returned 1.01% copper, 165 g/t silver and 0.78% zinc, equivalent to 238 g/t silver or 3.97% copper. Tertiary said several holes ended in mineralisation beyond the existing modelled boundary, while drilling also encountered disseminated sulphides as mineralisation transitioned from the oxide zone into fresher rock. Managing director Richard Belcher said this supported the company's working model for a possible deeper sulphide system and the case for deeper diamond drilling. The company also reported a new shallow copper discovery around 900 metres west-southwest at the Western Zone, where preliminary pXRF results included 25 metres at 0.38% copper from 19 metres. Results have now been released from 29 holes in the 39-hole Phase 4 programme, with further laboratory assays expected in the coming weeks and a Mineral Resource Estimate targeted before the end of 2026. Continue reading