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Drill holes show silver - Target A1, Mushima North
Tertiary Minerals plc announced further drilling results from its Mushima North Project in Zambia, demonstrating the northerly continuation of silver mineralisation at Target A1. Drill intersections include 64m at 26 g/t Ag, 0.13% Cu and 0.21% Zn from 2m downhole in Hole 25TMNAC-027, including 20m at 36 g/t Ag. Hole 25TMNAC-028 returned 44m at 39 g/t Ag, 0.17% Cu and 0.37% Zn from 8m downhole, including 15m at 63g/t Ag. The mineralisation extends over a 350m by 300m area and remains open to the north, south, and at depth. Results also include the highest grades of zinc (1.59%) and antimony (0.21%) intersected to date. Additional drill hole results are expected in the coming weeks. Disclaimer*

About this update from Tertiary Minerals Plc
[{"type":"text","content":"\n\n\n \n24 September 2025\nTertiary Minerals plc\n (\"Tertiary\" or the \"Company\")\n \nNew drill holes demonstrate the northerly continuation of thick, near surface silver mineralisation over a 300m width at Target A1, Mushima North\n \nTertiary Minerals plc (AIM: TYM) is pleased to announce drilling results for a further three holes from the Phase 2 follow-up drill programme at Target A1 at its Mushima North Project in Zambia (\"Mushima North\" or the \"Project\").\nThe analytical results from the new drillholes support the previously reported northern continuation of the thick near surface mineralisation defined by only one drill hole until now, extends over a width of approximately 300m. Silver mineralisation has now been intersected in drilling over a 350m by 300m area, and remains open to the north, south and at depth.\nMushima North is located in the prospective Iron-Oxide-Copper-Gold region of Zambia. Target A1 is a polymetallic, silver-copper-zinc prospect located 28km to the east of the historic Kalengwa copper-silver mine which is currently under redevelopment.\n \nHighlights:\n \n· Drill intersections include:\n· 64m at 26 g/t Ag, 0.13% Cu and 0.21% Zn from 2m downhole (Hole 25TMNAC-027).\n§ Including: 20m at 36 g/t Ag, 0.13% Cu and 0.27% Zn from 46m downhole.\n· 44m at 39 g/t Ag, 0.17% Cu and 0.37% Zn from 8m downhole (Hole 25TMNAC-028).\n§ Including: 15m at 63g/t Ag, 0.13% Cu and 0.56% Zn from 33m downhole.\n§ And: 16m at 1.59% Zn from 56m downhole.\n· Mineralisation, including higher grade zones, remains open to the north, south and at depth.\n· Results include the highest grades of zinc (3.35%) and antimony (0.21%) intersected to date from certified laboratory analytical results on the Project.\n· Additional drill hole results expected in the coming weeks testing both northern and southern continuation of mineralisation.\n· Initial mineralogical/metallurgical work now underway.\nRichard Belcher, Managing Director of Tertiary Minerals plc, commented:\n \n\"We are delighted to report further extension of the silver mineralisation at Target A1. These results support the continuation of the near surface, thick mineralisation to the north over a substantial width. The silver mineralisation foot...