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First Quantum and process stockpiles
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First Quantum Minerals (TSX:FM) said the Government of Panama approved the removal, processing, and export of stockpiled Cu ore at its Cobre Panamá mine to mitigate environmental and operational risks associated with prolonged on‑site storage, including the potential for acid rock drainage, while also providing material to the TMF. The stockpile is estimated at 38Mt containing 70kt of recoverable Cu. The processing program will utilize existing in‑pit crushers, conveyors, process plant, and flotation circuit. It will allow for testing of all three milling circuits but will initially operate at one‑third of nameplate capacity. Preparation and pre-commissioning is expected to take up to three months and cost US$250M. “We welcome the formal approval to proceed with the removal and processing of stockpiled ore, which represents an important step in the responsible environmental management of Cobre Panamá, particularly with respect to water and tailings stewardship,” said CEO Tristan Pascall.
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Argentina glacier law amendment passed
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Argentina’s Congress has approved a government sponsored bill to amend the 2010 Glacier Law to allow provinces to define their own protection standards for glaciers and periglacial environments. The bill received Senate approval in February.
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Completed the acquisition of an additional 5% equity interest in Lumina Copper, owner of the Caserones Cu-Mo mine, along with a 30.9% interest in the Los Helados Cu project and a 0.62% NSR on Los Helados, from JX Advanced Metals and for US$215M funded from cash on hand. This acquisition increases LUNs ownership in Caserones to 75%, adding annual attributable Cu production of 6-7Ktpy, while the 30.9% interest in the Los Helados Project strengthens the Company's copper and gold Mineral Resource base and provides compelling long-term growth optionality, including potential synergies with the nearby Caserones operation.
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Gold Hart Copper (TSXV:HART)
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Agreed to acquire Rhyolite Resources (TSXV:RYE). RYE shareholders will receive one HART share for every 2.6 RYE shares.
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Mexican Gold Mining (TSXV:MEX)
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Is to acquire Alcon Silver in an all-stock transaction. Alcon shareholders will receive one share of MEX for each Alcon share held. Alcon shareholders will hold 61% of MEX, which will hold the Princesa and Las Minas projects. MEX will complete a 1.7:1 share consolidation, change its name to Platauro Metals, and complete a non-brokered private placement of C$2M. "With the robust economics and expansion potential at Las Minas, alongside the strong Ag foundation at Princesa, we are establishing a diversified portfolio anchored by quality resources,” said CEO Jack Campbell.
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Element 29 to raise C$35.5M
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Element 29 Resources (TSXV:ECU) opened a non-brokered private placement of 32.3M shares @ C$1.10 for C$35.5M. Proceeds will fund exploration at the Elida porphyry Cu-Mo-Ag) deposit in Perú.
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Bravo Mining (TSXV: BRVO) closed a private placement of 7M shares @ C$4.071 for $28.5M to Orion Mine Finance. The raise brings cash on hand to $134M. Proceeds will fund work at the Luanga PGM project in Brazil, including advancing to a PFS in 3Q26 and, if warranted, toward FS in 2027.
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Sonoro Gold (TSXV:SGO) announced a fully-committed non-brokered private placement of 45.8M units @ 24c for C$11M. Each unit will comprise one share and a warrant. Each warrant exercisable @ 32c for three years. Proceeds will be used for a two phase 50,000m drilling program at the Cerro Caliche Au project in Sonora, Mexico.
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First Quantum Minerals (TSX:FM)
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Signed an agreement with the IFC to align its Taca Taca Cu project in Salta with IFC’s Performance Standards, on Environmental and Social Sustainability. It said this will strengthen the project’s potential for debt financing while promoting responsible and sustainable mining practices. With an estimated initial investment of US$4.2B for 40Mtpy throughput with expansion optionality to 60Mtpy, for a total investment of $5.25B, Taca Taca project is expected to produce 291ktpt Cu in the first 10-years of a 35-year mine life.
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Aldebaran Resources (TSXV:ALDE)
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Provided results of five holes from infill drilling at the Altar Cu project in San Juan to upgrade resource blocks. Highlights included 936m @ 0.62% Cu, 0.09g/t Au & 1.16g/t Ag for a 0.66% CuEq in hole 49EXT. “The results today demonstrate the consistency of mineralization at Altar. These holes will provide valuable information as we move toward a resource update and pre-feasibility study,” said CEO John Black.
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Blue Sky Uranium (TSXV:BSK)
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And JV operating company, Ivana Minerales, began a 1,200m diamond drilling exploration program at the Ivana East target, 10km NE of the Ivana Ur-V deposit within the Amarillo Grande project in Rio Negro.
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Announced results from 24 shallow RC holes targeting Au-in-oxide material at the MG starter pit within the Cuiú Cuiú district in Para to improve the confidence around the current mine plan. 68 holes for 3,174m have been completed. Highlights included 48m @ 1.35g/t from 4m depth in hole 625. “This first batch of infill drill results at MG are highly encouraging and confirm the presence of good grades over significant widths within the near surface weathered saprolite material and the overlying blanket sediments. These data will allow us to further refine our mine plan for the starter pit and update the Au-in-oxide reserve base for the MG deposit,” said president & CEO Alan Carter.
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St George Mining (ASX:SGQ)
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Reported drilling results from its Araxá REE & NB project in Minas Gerais. Highlights included 178.7m @ 4.34% TREO & 0.75% Nb₂O₅ from surface in hole 86. “The drilling results continue to show huge true widths from surface paired with very high grades. This unique combination is unrivalled among emerging REE & Nb developers. … The world-class Nb component of the Araxá resource promises to be a potentially tremendous value driver,” said executive chair John Prineas.
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Reported sampling results from initial Au concentrate produced at its Vila Nova project in Amapá collected from the bulk sampling mill operated by JV partner ECO Mining Oil & Gaz Drilling Exploration of up to 130g/t Au. The processing circuit has demonstrated the ability to produce a high-grade Au concentrate.
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Reported drilling results from its La Verde Cu-Au porphyry discovery near its Costa Fuego Cu-Au project in the coastal Atacama region. Highlights include 725m @ 0.42% CuEq from 18 m depth, including 62m @ 1.03%, in hole 39, the most significant result to date at La Verde. “Most importantly, it has confirmed a major 200m down-dip extension to the high-grade core of the deposit. With two drill rigs now in operation and a third planned, the company is focused on accelerating its definition of a potential higher-grade starter pit for Costa Fuego,” said MD Christian Easterday.
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Marimaca Copper (TSX:MARI)
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Reported complete Ag assays from drilling to date at the Pampa Medina deposit in the Antofagasta region, with elevated Ag grades present in both oxide and sulphide Cu mineralized zones and broadly correlated with Cu grade. MARI has completed its Phase I metallurgical programs at Pampa Medina and is not reporting CuEq grades at this time. Ag by-products are common in Chilean manto-type deposits. Highlights included 6m @ 11.98% Cu & 82g/t Ag in hole 13. MARI intends to increase the rig count on site from five to accelerate the 2026 drilling programme. “Finalizing our silver assays across the complete Pampa Medina drilling database confirms our working hypothesis that Ag grades would be elevated, consistent and strongly correlated with Cu grades,” said VP exploration Sergio Rivera.
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Copper Giant Resources (TSXV:CGNT)
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Mobilised a third diamond drill rig at the Mocoa Cu-Mo porphyry project in Putumayo as exploration transitions from resource definition to systematic testing of new porphyry centers beyond the resource estimate footprint, targeting La Estrella and Piedralisa with their first-ever drill testing. "The addition of a third drill rig reflects the confidence we are building in the broader Mocoa system. Targets like La Estrella and Piedralisa are supported by strong geological, geochemical, and geophysical signatures but have never been drilled. This phase is about testing that potential," said VP exploration Edwin Naranjo.
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Submitted a works program mining permit application for its Nechí Au project in Bolívar that comprises the El Catorce, Santa Elena, and Santa María deposits, all of which have undergone successful test mining. Existing underground workings at Nechí are expected to facilitate an accelerated ramp-up. "Once approved, Nechí is expected to provide an additional 250tpd of feed to our El Bagre Mill, translating to incremental production of approximately 25koz/y AuEq,” said CEO Geoff Hampson.
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Cosigo Resources (TSXV:CSG)
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Announced results from conglomerate layer bulk sample for gravity concentration tests for its Taraira Au project. A 60kg composite and a 20kg Knelson test yielded a weighted average Au grade of 0.03g/t.
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Salazar Resources (TSXV:SRL)
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Evaluated its wholly-owned portfolio of properties, conducting baseline geological work to define appropriate development strategies for each. It identified the Monja project in Loja as a cornerstone asset on which to focus exploration. Surface mapping defined a Cu-Au porphyry system containing a 2km x 1km central core. Mineralization observed to date includes hydrothermal breccias with pyrite-chalcopyrite matrix, quartz-sulphide stockwork veining, and locally bornite, together with well-mineralized tourmaline breccias, all considered strong indicators of porphyry fertility. SRL has planned a mapping, sampling and ground geophysics program to further define drill targets.
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Heliostar Metals (TSXV:HSTR)
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Announced additional results from the Expansion Zone at its Ana Paula project in Guerrero testing the down-dip extension of the current resource. HSTR has completed 84 holes for 28,318m in 2025-26 drilling. Highlights included 101m @ 5.34g/t Au in hole 374. “The success of the program so far has been twofold - continuing to hit impressive broad intervals of high grade and providing additional data allowing our team to refine the targeting model in the Expansion Zone,” said CEO Charles Funk.
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Acquired a 100% interest in the Diana mineral concession adjacent to its Cerro Caliche Au project in Sonora for a one-time payment of US$600k. SGO believes the Diana concession to be a possible extension of the NW trending mineralized corridors N of the Rincón–Bellotoso mineralized zone near the workings of El Batamote mine. A recently announced 50,000m drilling program will include expansion drilling at Diana. Cerro Caliche is in the final permitting stage for a proposed initial open-pit, heap leach mining operation.
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Highlander Silver (NYSE-A/ TSX:HSLV)
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Is undertaking the first ever airborne magnetic survey at Corani totaling 620 line km, while a 60km IP survey has been completed. The first exploration drilling in over a decade is now underway targeting high-impact exploration, resource growth, infill and oxide drilling, as well as technical drilling to support optimization studies. An updated FS for a staged-development is due in 3Q26 to maximize returns on a per share basis while mitigating capital expenditure, funding, timeline and execution risks. As of March 31, HSLV had a cash balance of US$100M. Carlos Ojeda was appointed VP & GM at Corani, having previously held senior roles at Anglo American’s Quellaveco open pit Cu mine.
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Reported an assay of 1,020.5m @ 0.43% Cu & 0.09g/t Au from 48m depth in hole 66 within South Breccia at its Pecoy project. Hole 66 was drilled 195m from hole 65, confirming strong lateral continuity, with mineralization extending more than 300m below the current resource pit shell. Drilling will ramp towards five drill rigs later this year. “This is the second consecutive kilometre-scale intercept in the South Breccia zone to confirm a meaningful extension of mineralization below the current pit shell,” said CEO Vincent Metcalfe.
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Provided an update on metallurgical work on the Maria Norte Ag-Au-Pb property in the Huachocolpa district. Initial metallurgical testing confirmed high recoveries of Ag & Au, while the Zn content was determined to be insignificant. Metallurgical work and future processing will focus on the recovery of Ag-Au-Pb and RYO will design its processing methods to produce concentrates consisting of a Ag-Au-Pb concentrate and a lower grade Au-Ag-pyrite concentrate with minor amounts of Pb. Concentrates are expected to contain low amounts of As.
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Coppernico Metals (TSX:COPR)
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Acquired an option on 600 hectares of concessions adjacent to the Tipicancha target at its Sombrero project in an area where it is expanding Tipicancha by completing US$3M in staged work expenditures over five years and making payments of $2M. If the option is exercised, the vendor will retain a 1% NSR on future production with COPR having the right to reduce this to 0.5% within 10 years for $1M.
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