お知らせ • Mar 25
Unico Silver Limited Announces Further Assay Results from Ongoing Drilling At the Cerro Leon Project, Located in the Santa Cruz Province of Argentina
Unico Silver Limited announced further assay results from ongoing drilling at the Cerro Leon project, located in the Santa Cruz province of Argentina. HIGHLIGHTS: Drilling at Archen (Sierra Blanca) returns further exceptional high-grade mineralisation outside of the current Mineral Resource: Highest silver equivalent (AgEq1) Grade Thickness to date of 10,825 GT. (P020-25) 3.2m at 265gpt AgEq from 119m, and 18m at 601gpt AgEq from 127m, inc.
4m at 2,400gpt AgEq from 136m Extends mineralisation 50m below previously reported intercept of 17m at 429gpt AgEq (PR041- 24) and is open at depth. High grade silver mineralisation at Karina extended a further 50m vertical, open at depth. (P003-25) 19.8m at 125gpt AgEq from 101m, and 1.7m at 785gpt AgEq from 138.4m Regional RC drilling defines new Silvia structure 6m at 308gpt AgEq from 48m. The planned 10,000m Phase 2 diamond drill program at Cerro Leon is almost complete and assay results for 49 holes for 6,879m are pending. Unico Silver holds 100% of the Cerro Leon and Joaquin silver gold districts located in the central Deseado Massif geological province, Santa Cruz Argentina. Cerro Leon is strategically located within the same structural corridor that is host to AngloGold Ashanti's world- class Cerro Vanguardia mine. The Project hosts a JORC compliant Mineral Resource Estimate (MRE) of 91Moz AgEq for 16.5Mt at 172gpt AgEq. During August 2024, the Company announced the acquisition of the Joaquin project from Pan American Silver Corp. Joaquin is host to a Foreign Estimate of 73Moz AgEq for 16.7Mt at 136gpt AgEq (Table 4). Historical production by PAAS from 2019 to 2022 totals 4.3Moz Ag. The Phase 1 drill program was completed on 15 December 2024 and comprised 56 Reverse Circulation holes, totalling 4,847m. The program was designed to test shallow mineralisation (less than 75 vertical meters) across six prospects (see ASX announcement, 9 October 2024, Priority Silver Targets Outlined at Cerro Leon). Assay results for the final 10 holes, totalling 938m, are now reported. The Phase 2 diamond drill program commenced in early January 2025 and is set to conclude next week. Assay results have been received for a further 9 holes, totalling 1187m, while results for an
additional 49 holes totalling 6,879m are pending. Although drilled later, assay results for the Veta Chala and Archen prospects were received first due to the prioritisation of fire assays for gold and silver at the Alex Stewart laboratory in Perito Moreno, Santa Cruz province. Samples are then transported to Mendoza for more detailed ICP-MS analysis of lead and zinc, which has extended turnaround times by approximately four weeks. SIERRA BLANCA PROPERTY Archen-Chala Prospect Five holes (P020-25 to P024-25) totalling 506m were completed at the Archen-Chala prospect. Drilling at Archen was focused on following up a sub-vertical mineralised shoot, previously defined by two drill holes reported January 2025 (see ASX Announcement, 20 January 2025, Cerro Leon drill results) Previously reported drill results for Archen include: (PR041-24) 17m at 429gpt AgEq from 95m, including 7m at 767gpt AgEq from 95m (PR042-24) 13m at 287gpt AgEq from 63m Deeper drilling on the section returned exceptional high-grade mineralisation, extending the mineralised shoot 50m down dip, to 125m from surface. New drill results from Archen include: (P020-25) 3.2m at 265gpt AgEq from 119m, and 18m at 601gpt AgEq from 127m, including. 4m at 2,400gpt AgEq from 136m Mineralisation is hosted within a banded epithermal vein (silica-rhodochrosite) cut by black silica and minor sulfides. These results returned the highest AgEq Grade Thickness recorded for the project to date, with a value of 10,825 GT and an individual gold assay of 108 g/t Au. At Chala, drilling has defined a new hanging wall structure (Chala HW) that remains poorly tested by drilling. Hole P023-25 pierced Chala HW at shallow levels and returned 3m at 265gpt AgEq from 44m. Three additional holes at Chala HW have been complete over a 200m strike to better define the structure. PINGUINO PROPERTY, Karina Prospect Four holes (P001-25 to P004-25) totalling 681m were completed at the Karina prospect. Initial holes were spaced up to 175m apart to test the vertical continuity of mineralisation. Drill hole P003-15 intercepted broad mineralisation followed by a second high-grade footwall structure with high primary silver, confirming vertical continuity to mineralisation on this section. Significant results include: (P003-25) 19.8m at 125gpt AgEq from 101m, and 1.7m at 785gpt AgEq from 138.4m The results extend mineralisation a further 50m vertically to 125m below surface and is open at depth. Infill drilling is planned around hole P003-25 to better determine the geometry of the mineralised shoot. Regional Drilling In addition to the recent Phase 2 diamond drilling, assay results for the last 10 regional RC drill holes totalling 836m were received. At Silvia, located on the eastern limits of the Cerro Leon vein field, has confirmed a new mineralised structure: (PR050-24) 6m at 308gpt AgEq from 54m Mineralisation is open along strike and at depth. Two deep diamond drill holes have been completed at Silvia targeting extensions of mineralisation. Elsewhere, drilling at Tranquilo Norte and CSV has returned encouraging mineralisation from 150m to 400m spaced reconnaissance holes, including: Tranquilo (PR053-24) 3m at 99gpt AgEq from 48m (PR054-24) 12m at 55gpt AgEq from 66m CSV (PR056-24).4m at 153gpt AgEq from 75m Exploration at both prospects is ongoing. The Archen discovery is significant and confirms the potential for the Sierra Blanca property and poorly explored western continuation of the Cerro Leon vein field to host high-grade mineralised shoots. Regional exploration, including detailed soil and rock chip sampling programs are underway to rapidly advance additional targets within Sierra Blanca to drill status. Assay results for 49 holes totalling 6,879m are pending with further results are anticipated in 3 weeks.
