Reported Earnings • Jun 25
First half 2026 earnings released: EPS: UK£0 (vs UK£0 in 1H 2025) First half 2026 results: EPS: UK£0 (in line with 1H 2025). Revenue: UK£65.7k (down 35% from 1H 2025). Net loss: UK£328.2k (loss widened 32% from 1H 2025). Over the last 3 years on average, earnings per share has increased by 47% per year but the company’s share price has fallen by 21% per year, which means it is significantly lagging earnings. Tillkännagivande • Jun 10
Tertiary Minerals Announces Upcoming Drill Programme At Mushima North Project in Zambia Tertiary Minerals plc announced details of the upcoming drill programme at the Target A1 silver oxide discovery which forms part of the Mushima North Project, Zambia. The aim of the drilling is to enable the reporting of a JORC Mineral Resource Estimate for Target A1 where the Company has already reported a JORC Exploration Target of between 15 and 30Mt with a mean grade of 40-60 g/t silver equivalent. Last drill programme included the best drill intersection to date: 97m at 56 g/t Ag, 0.43% Cu and 0.19% Zn (85 g/t Ag equivalent or 1.42% Cu equivalent) from 6m downhole (hole 25TMNRC-043). Including: 42m at 81 g/t Ag, 0.70% Cu and 0.24% Zn from 55m downhole, and 27m at 98 g/t Ag, 0.91% Cu and 0.25% Zn from 70m downhole, and 13m at 77 g/t Ag, 1.46% Cu and 0.23% Zn (168 g/t Ag equivalent or 2.80% Cu equivalent) from 84m downhole. The drilling will test: Oxide mineralisation extensions at Target A1, Infill drilling to support the Mineral Resource Estimate at Target A1, and Initial drill testing of western Target A1 and Target A2. Approximately 4,000m Reverse Circulation drilling programme planned. Drilling is expected to start within the next two weeks. All drill-related permitting is in place and a drilling contract has been signed. Access road and drill pad preparation is already underway. A programme of approximately 4,000m Reverse Circulation drilling is planned as a series of east-west drill lines spaced approximately 100m apart (north-south). Holes will be collared approximately 50m apart along the east-west lines and drilled to vertical depth of up to 125m (estimated maximum depth capability of the drill rig). The drill programme at Target A1 is designed to: Infill the oxide zone to provide a sufficient density of drilling to confirm the continuity of the mineralisation and enable the reporting of a maiden Mineral Resource Estimate to JORC standards. Test mineralisation extensions to the northwest, southwest and at depth within the oxide zone to potentially increase the tonnage and contained ounces. Test the current model for additional mineralisation in the west of Target A1 and at Target A2. The drill programme is being conducted by Ox Drilling which also completed the initial drill programmes on the Project. The drill programme is expected to commence in the next two weeks and will take approximately 6-12 weeks to complete. Samples will be initially analysed on site using a portable X-Ray Fluorescence analyser for copper and zinc. Selected mineralised intervals will also be submitted for external assaying at a certified laboratory for a suite of elements, including silver, copper, zinc, bismuth, antimony and gallium. These will be submitted in regular batches throughout the drill programme, with the first results expected approximately 6-8 weeks after the initial batch is submitted. The Company recently reported a JORC-compliant Exploration Target for Target A1 of between 15 and 30Mt with an average grade of between 40 and 60 g/t silver equivalent. As currently defined, Target A1 is a near surface, tabular body located within the oxide zone and is some 500m long and 300m wide and up to 75m thick (based on a lower cut-off of 25 g/t silver equivalent). However, the mineralisation remains open to the northwest, southwest and at depth and so the full geometry of the mineralisation remains to be determined. The potential for the near surface oxide mineralisation to transition to underlying sulphide mineralisation has yet to be tested. Elevated bismuth (up to 991 g/t), antimony (up to 824 g/t) and gallium (up to 40 g/t) are also associated with the mineralisation, but as yet, have also not been fully investigated. Tillkännagivande • Jun 04
Tertiary Minerals plc has filed a Follow-on Equity Offering in the amount of £1 million. Tertiary Minerals plc has filed a Follow-on Equity Offering in the amount of £1 million.
Security Name: Ordinary Shares
Security Type: Common Stock
Securities Offered: 1,970,000,000
Price\Range: £0.0005
Security Name: Ordinary Shares
Security Type: Common Stock
Securities Offered: 30,000,000
Price\Range: £0.0005
Transaction Features: Subsequent Direct Listing Reported Earnings • Feb 18
Full year 2025 earnings released: EPS: UK£0 (vs UK£0 in FY 2024) Full year 2025 results: EPS: UK£0 (in line with FY 2024). Revenue: UK£200.6k (up 23% from FY 2024). Net loss: UK£583.9k (loss widened 6.0% from FY 2024). Over the last 3 years on average, earnings per share has increased by 64% per year but the company’s share price has fallen by 17% per year, which means it is significantly lagging earnings. Tillkännagivande • Feb 18
Tertiary Minerals plc, Annual General Meeting, Mar 19, 2026 Tertiary Minerals plc, Annual General Meeting, Mar 19, 2026. Tillkännagivande • Feb 06
Tertiary Minerals plc Announces Laboratory Results for the Four Holes Completed During the Phase 3 Drilling Programme At Target A1 At Its Mushima North Project in Zambia Tertiary Minerals plc announced laboratory results for the four holes completed during the Phase 3 drilling programme at Target A1 at its Mushima North Project in Zambia ("Mushima North" or the "Project") prior to the programme being curtailed by the early start to the wet season. Preliminary results from portable X-Ray Fluorescence ("pXRF") analysis of drill samples were notified on 13 November 2025. The laboratory analytical results indicate further high-grade silver and copper mineralisation in the north of Target A1, which has a mineralisation footprint of 450m by up to 400m wide area, and remains open to the northwest, south/southeast and at depth. Mushima 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 and is one of several targets to be evaluated at the Project. Highlights: Drill intersections include (downhole widths, true widths unknown): o 97m at 56 g/t Ag, 0.43% Cu and 0.19% Zn (85 g/t Ag equivalent or 1.42% Cu equivalent) from 6m downhole (hole 25TMNRC-043). Including: SS 42m at 81 g/t Ag, 0.,70% Cu and 0.24% Zn from 55m downhole, and SS 27m at 98 g/t Ag, 0".91% Cu and 0.25% Zn from 70m downhole, and SS 13m at 77 g/t Ag, 1.46% Cu and 0.23% Zn (168 g/t Ag equivalent or 2.80% Cu equivalent) from 84m downhole. o 11m at 18 g/t Ag, 0.'18% Cu and 0.20% Zn (32 g/t Ag equivalent or 0.54% Cu equivalent) from 20m downhole (hole 25 TMNRC-044). o 17m at 14 g/t Ag, 0;25% Cu and 0.41% Zn (36 g/t Ag equivalent or0.60% Cu equivalent) from 51m downhole (hole 25™NRC-044). Best copper drill intersection to date: 13m at 1.46% Cu (2.8 0 % Cu equivalent) from 84m, with individual metre samples of up to 3.17% Cu (hole 25TMNRC -043). Silver mineralisation occurs over a 450m by 400m surface area and depth of mineralisation extended from 84m to 103m. O Mineralisation footprint remains open to the northwest, South/southeast and at depth extent remains to be fully tested. O JORC Exploration Target to be finalised in the coming weeks. Phase 3 Drill Programme A programme of approximately 1,000m Reverse Circulation ("RC") drilling was planned as part of the Phase 3 Drill Programme before heavy and earlier than expected rains cut this short. Four vertical holes were completed to a maximum depth of 127m testing the northern extent of the mineralisation footprint. The four drill holes now being reported, and described below, are located on two 100m spaced east-west drill lines, 8507275N and 8507375N. Drill line 8507375N represents the most northern drill traverse drilled to date. 25TMNRC-041: Located on a two drill-hole line with 25TMNRC-042. The drill hole was drilled vertically to a downhole depth of 112m. The hole was designed to test the continuation of the mineralisation to the north of drill line 8507275N. The Project lies 20km to the east of the Kalengwa copper mine in northwest Zambia, one of the highest-grade copper deposits ever to be mined in the country. In the 1970s, high-grade ore, average approximately 11% copper, was trucked for direct smelting at other mines in the Copperbelt. The Kalengwa mine is currently under redevelopment and is expected to produce 15,000 tonnes of copper annually. Numerous other geochemical and is expected to produce 15. Numerous other geochemical and/or geochemical and/or geophysical targets (A2,000 tonnes of copper annually; Numerous other geophysical targets (A2. Numerous other geophysical targets (NRC) are yet to be drill tested (A2, B1,000 tonnes of copper annually.; Numerous other geophysical targets (a2, B2, B2,000 tonnes of drill tested (A2,000 tonnes the east of the east of these are yet to be drill tested. Numerous other geophysical targets ("A2,000 tonnes of the historic Kalengwa mine is yet to be drill tested. numerous other geochemical and/or Geochemical and/or geophysical target A2, B. 
