Meridian Mining Plc develops and explores precious- and base-metal mining projects in Mato Grosso, Brazil, led by the Cabaçal Au-Cu-Ag project and the Santa Helena deposit. Company news commonly covers mineral resource updates, drilling results, preliminary licensing, feasibility-study work, and regional exploration across the Cabaçal, Jauru and Araputanga belts.
Updates also document corporate actions such as the completed conversion and name change to Meridian Mining Plc, governance-role changes, Brazilian subsidiary activity at Rio Cabaçal Mineração Ltda, mineral-right approvals by the Agência Nacional de Mineração, and disclosures tied to capital structure and operating results.
Meridian Mining (OTCQX: MRRDF) reported that laboratory-scale smelting and converting tests on copper sulphide concentrates from its Cabaçal copper-gold-silver project in Mato Grosso, Brazil produced high-quality blister copper grading 98.9% Cu, with 95.2 g/t gold and 387.6 g/t silver.
The blister copper showed very low minor-element impurities, with levels reported as better than typical high-quality anode copper, and maintained targeted residual sulphur. The smelting programme at Kingston Process Metallurgy achieved about 95% copper recovery and low copper in slag (0.37% Cu), indicating efficient conversion of Cabaçal concentrates to blister under conditions representative of commercial operations. Meridian said these characteristics support strong marketability of future Cabaçal concentrates, and the company continues off-take discussions as its definitive feasibility study and project finance preparation advance.
Meridian Mining (OTCQX: MRRDF) granted conditional share awards on 9 July 2026 under its Omnibus Incentive Plan to directors and other persons discharging managerial responsibilities. Awards comprise restricted share units (RSUs), performance share units (PSUs) and deferred share units (DSUs), calculated using a reference price of CAD1.70/GBP£0.92.
The CEO, Gilbert Clark, received 166,481 RSUs and 332,963 PSUs; the CFO, David Halkyard, 107,796 RSUs and 215,593 PSUs. Chairman Bruce McLeod received 66,592 DSUs, while five non-executive directors each received 33,296 DSUs. RSUs and PSUs generally vest after three years; DSUs vest monthly and settle when a director leaves the Board.
Meridian Mining (OTCQX: MRRDF) announced updated total voting rights and issued share capital in line with FCA DTR 5.6.1R.
After issuing 1,605,777 new ordinary shares, the company’s total issued share capital at 30 June 2026 is 487,119,091 Ordinary Shares, each carrying one vote, with no treasury shares.
Meridian Mining (OTCQX: MRRDF) announced the appointment of Dr. Carlos Vilhena and Mr. Felipe Holzhacker Alves as independent non-executive directors, effective immediately, following its AGM.
Dr. Adrian McArthur and John Skinner have stepped down from the board, with McArthur remaining President and Skinner joining the Advisory Board.
Meridian Mining (OTCQX: MRRDF) reported that all resolutions at its June 29, 2026 Annual General and Special Meeting were passed on a poll.
About 37.6% of the 485,619,091 eligible shares were voted. Shareholders approved all director elections, auditor appointments in the UK and Canada, share allotment authority, disapplication of pre-emption rights, and authority for market purchases of ordinary shares.
Meridian Mining (OTCQX:MRRDF) reported discovery of a second layer of Au-Ag and Zn-Pb VMS mineralisation at the Santa Helena project in Brazil.
Key hole CD-869 cut 7.2m grading 1.4 g/t Au, 24.3 g/t Ag, 2.3% Zn and 0.9% Pb from 177.6m, including visible gold.
The new layer lies below and east of the Santa Helena Central resource and is interpreted as a down-dip extension of the Santa Helena North IP anomaly. Mineralisation remains open, with follow-up drilling testing both open-pit and underground potential. Additional near-mine holes (CD-866, CD-861, CD-862) returned multi-metre Cu-Au-Ag-Zn intercepts, and permitting is in place for first-pass drilling at the Espigão Cu-Au targets.
Meridian Mining (OTCQX:MRRDF) will move trading of its London-listed shares from SETSqx to SETS on 5 June 2026, following inclusion in the FTSE Index series. This change prepares the company for expected FTSE Small Cap Index inclusion from 22 June 2026 and is intended to enhance liquidity.
Meridian Mining (OTCQX:MRRDF) scheduled its 2026 annual general and special meeting for 29 June at 4:00 p.m. (London time) at 4 More London Riverside, London. Shareholder materials and the Notice of Meeting are available via the FCA’s National Storage Mechanism, SEDAR+ and the company’s website.
Board changes include John Skinner and Adrian McArthur not standing for re-election as directors, with Skinner joining the Advisory Board and McArthur continuing as President. Two Brazilian non-executive director nominees, Carlos Vilhena and Felipe Holzhacker Alves, are proposed for election.
Meridian (OTCQX: MRRDF) submitted the Cabaçal gold-copper-silver project's Installation Licence application to Mato Grosso regulator SEMA, a key step before mine construction. The Definitive Feasibility Study is nearly 50% complete and on track for Q4 2026.
Meridian is ordering long-lead mill equipment, including a SAG mill and main transformer, fast-tracking road and bridge upgrades, and has a commitment letter with ENERGISA for power across 2.5Mtpa and 4.5Mtpa phases, supported by an approved 24km power line route.
Meridian (OTCQX: MRRDF) reported a new discovery of gold and base metal mineralisation at the Álamo target, 1km from Santa Helena. Discovery hole CD-852 cut 3.5m @ 2.4g/t Au, 0.5% Cu, 9.5g/t Ag & 0.7% Zn from 108.9m, within a 1.6km IP anomaly.
At Santa Helena Central, infill drilling returned multiple near-surface high-grade intercepts, including CD-854 (21.2m @ 1.5g/t Au, 1.2% Cu, 45.7g/t Ag & 6.0% Zn). Peak assays reached 17.5g/t Au, 311g/t Ag, 11.6% Cu and 22.1% Zn. Results will support a future resource upgrade and metallurgical testwork.