VANCOUVER, BC — January 8, 2026 — Leads & Copy — Core Silver Corp. has released visuals and geological highlights from drill hole LAV25-012, the third of four deep exploratory diamond drill holes completed during the 2025 season at the Laverdiere Copper Project, located on the eastern Blue Property in the Atlin Mining District, northwestern British Columbia.
Core Silver’s 2025 exploration campaign was designed to test the depth potential and continuity of a large (5 km x 8 km) multi-phase Cu-Mo-Ag±Au porphyry system through diamond drilling, detailed structural mapping, and surface sampling. In total, seven drill holes were completed across five key target areas along the Valley Fault Zone, for a combined 3,857 metres drilled.
Drill hole LAV25-012 successfully intersected multiple, mineralized Cu-Mo-Ag intervals and associated porphyry-style alteration from 325 to over 825 metres drilled depth, confirming an additional 450-metre southern extension of the Laverdiere Porphyry System at the Valley Zone.
The hole was collared 450 metres south of 2025 drill holes LAV25-010 and LAV25-011 and targeted a magnetic low anomaly interpreted as a zone of increased hydrothermal alteration and structural complexity along the Valley Fault.
LAV25-012 intersected abundant Cu- and Mo-bearing quartz veining, mineralized breccias, and higher-grade copper sulphides (including bornite) below 250 metres drilled depth. These narrow but well-developed mineralized zones are hosted in altered Laverdiere Porphyry bounded by late- to post-mineral porphyry phases indicating multiple intrusive and mineralizing events.
The alteration and mineralization styles observed in LAV25-012 further indicate proximity to a large, multi-phase Cu-Mo-Ag porphyry centre, with open potential both at depth and along strike.
With less than 6,000m drilled project-wide, porphyry Cu-Mo-Ag mineralization and associated alteration has been defined over approximately 600m between 2025 drill holes LAV25-010 and 012 and for 2.3km between Valley & Main Zone drilling.
Copper and molybdenum mineralization have now traced across more than 4.5 kilometres along the Valley Fault corridor, proving that Laverdiere continues to demonstrate the hallmarks of a district-scale porphyry system within an underexplored northern mineral belt.
Core Silver’s President & CEO, Nick Rodway, commented that each new drill hole at Laverdiere continues to strengthen the scale and significance of this emerging porphyry system. The 450-metre step-out confirmed by LAV25-012 demonstrates strong continuity of copper-molybdenum-silver mineralization and expands the system well beyond their 2022 footprint. With multiple intrusive phases, significant mineralization at depth, and open extensions in all directions, Laverdiere is shaping up to be a compelling, large-scale discovery in Northern British Columbia.
Drill hole LAV25-012 was designed to test the depth extent and lateral continuity of copper-molybdenum-silver (Cu-Mo-Ag) mineralization previously intersected in holes LAV25-010 and LAV25-011. The hole was drilled steeply to the north to a final depth of 840 metres, targeting a broad magnetic low located proximal to the Valley Fault Zone-interpreted as a highly prospective structural corridor for porphyry-style mineralization.
LAV25-012 intersected locally extensive zones of late- to post-mineral porphyry phases from surface, confirming the multi-phase and long-lived nature of the Laverdiere Porphyry System. While comparable metal zonation patterns to those in LAV25-010 and LAV25-011 are present, their intensity is partially overprinted by younger intermineral porphyry intrusions. Epithermal quartz-carbonate veins are abundant throughout the upper altered sections, representing a later hydrothermal overprint that remobilized and partially destroyed earlier porphyry mineralization. Below 325m drilled depth, copper sulphides (chalcopyrite ± bornite) dominate narrow but well-developed mineralized zones that extended the Laverdiere Porphyry System by an additional 450 metres.
The Laverdiere Copper Project is a low-elevation, drill-permitted, early-stage high-grade Cu-Mo-Ag-Au porphyry-skarn Target. The Project has been sporadically explored since the early 1900s, without ever having received a significant exploration program. At Laverdiere, an extensive Cretaceous granodiorite intrusion hosts widespread Cu-Mo-Ag±Au porphyry mineralization. The intrusion is associated with a very high-grade Fe-Cu-Au-Ag massive sulphide skarn occurrence that is exposed at surface along the western flank of the prolific Llewellyn Fault Zone (LFZ) at the porphyry-marble contact.
Adits driven into the Laverdiere area in the early 1900s reportedly returned up to 27m grading 1.20% Cu. Historic and shallow diamond drilling completed 125m north of the French Adit in 1974 reportedly returned 175m of 0.27% Cu, including 6m of 1.60% Cu and 7.8m of 1.60% Cu. Core Silver’s inaugural diamond drilling campaign at the Laverdiere Copper Project in 2022 returned up to 48.5m of 0.90% Cu, 6g/t Ag, and 0.11g/t Au from 31.46m depth in drill hole LAV22-001 (French Adit), 223m of 0.11% Cu, 2g/t Ag, and 0.006% Mo from 15m depth in LAV22-002 (French Adit), and 107.38m of 0.11% Cu, 0.023% Mo, 0.9g/t Ag, and 0.02g/t Au from 144.62m depth in hole LAV22-006 (North Adit).
In 2024, high-grade porphyry Cu-Mo-Ag±Au mineralization at the newly defined Valley Zone, located 2.2km southwest of the Main Zone, was structurally mapped and sampled. At the Valley Zone, a series of sheeted mineralized porphyry veins and fractures hosted in altered granodiorite have been mapped and sampled over a 1-kilometer east-west trend following the Valley Fault that historically returned up to 3.24% Cu (with 82g/t Ag, 0.56g/t Au and 0.053% Mo) and 0.32% Mo (with 1.03% Cu, 4g/t Ag) in 2022.
Contact:
Nicholas Rodway, President & CEO
Tel: 604.681.1568
Source: Core Silver Corp.
