공시 • Jun 09
West Coast Silver Limited Reports Significant Silver Mineralisation Extensions At Elizabeth Hill Project
West Coast Silver Limited has received significant assay results for the first 17 of 32 reverse circulation (RC) drill holes completed in May 2026 at the Elizabeth Hill Project, located near Karratha in the Pilbara region of Western Australia. RC drilling has significantly increased the scale of silver mineralisation up to 70m north of the Elizabeth Hill April 2026 maiden mineral resource estimate (MRE), confirming the mineralised system is open at depth and along strike, with multiple holes ending in mineralisation in the Munni Munni Fault Zone (MMFZ). Best intersections received to date include: 60m @ 25 g/t Ag from surface (including 19m @ 31 g/t Ag) (26WCRC004), 26m @ 31g/t Ag from 4m (26WCRC002, finished in mineralisation), 9m @ 33g/t Ag from 6m and 5m @ 31g/t Ag from 26m (26WCRC003), 2m @ 96g/t Ag from 91m (26WCRC012), 1m @ 157g/t Ag from surface (26WCRC011). The majority of new mineralisation lies outside the April 2026 MRE, increasing the scale of the mineralised system and providing a clear basis for MRE growth. Assay results received for the first 17 of 32 RC holes drilled at Elizabeth Hill North in May 2026 (2,710m RC program). Assays for the remaining 15 holes are pending, including hole 26WCRC023 which intersected 72m of altered MMFZ, with further results expected over coming months. Lead mineralisation up to 1.66% Pb intersected in 26WCRC010, consistent with the spatial association between lead and silver at Elizabeth Hill and indicating potential for higher-grade silver further along the MMFZ. 72m of altered MMFZ in hole 26WCRC023 (assays pending), representing the widest fault zone intersection drilled to date at Elizabeth Hill North. Diamond drilling is underway to test below RC holes that terminated in mineralisation, with economic studies of near-surface mineralisation progressing in parallel to support evaluation of a development pathway. Assay results from the first 17 holes (26WCRC001-26WCRC017) confirm broad zones of silver mineralisation both within and north of the April 2026 MRE block model, with silver hosted in intensely silica-altered granite and quartz-carbonate veins within the Munni Munni Fault Zone (MMFZ). The strongest results are from holes 26WCRC002 and 26WCRC004, drilled on cross-section A-A' immediately north of the current MRE. Hole 26WCRC004 returned 60m @ 25 g/t Ag from surface (including 19m @ 31 g/t Ag), and Hole 26WCRC002 was almost entirely mineralised, returning 28m @ 29 g/t Ag from 2m (including 26m @ 31 g/t Ag), ending in mineralisation due to difficult ground conditions in the MMFZ. Holes 26WCRC001 and 26WCRC003 on the same section also returned wide mineralised intervals, with 26WCRC003 returning 14m @ 25g/t Ag from 3m and 16m @ 21g/t Ag from 26m. The width and grade of mineralisation increased with depth across all four holes, indicating continuity and extension beyond the current MRE pit design. Holes 26WCRC002 and 26WCRC003 terminated in mineralisation due to poor ground conditions within the MMFZ. Two diamond drill holes (DD 002, DD 003) are currently being drilled on this section to fully intersect the mineralised zone at depth. On cross-section B-B’, approximately 25m north, hole 26WCRC005 intersected three separate intervals of >10g/t Ag: 7m @ 15g/t Ag from surface (including 1m @ 35g/t Ag from surface), 6m @ 14g/t Ag from 18m, and 4m @ 16g/t Ag from 33m. Holes 26WCRC006 to 26WCRC008 on this section returned only short silver intersections, however logging of 26WCRC023 (assays pending) indicates a 72m intersection of the altered MMFZ, supporting continuity of the mineralised system along strike. Two high-grade silver intersections were returned on cross-section C-C’, 50m further north: Hole 26WCRC011 returned 1m @ 157g/t Ag from surface, and Hole 26WCRC012 returned 2m @ 96g/t Ag from 91m. Strongly to extremely silicified alteration in granite has been logged across sections B-B’, C-C’, D-D’ and E-E’, interpreted to mark the continuation of the Elizabeth Hill alteration system within the MMFZ. High grade lead assaying up to 1.66% Pb was intersected from 55m to 70m in drill hole 26WCRC010. Zones of high-grade lead typically flank high grade silver zones at the Elizabeth Hill deposit and may indicate the presence of silver mineralisation further to the north along the MMFZ. This is supported by shallow, scout aircore hole 25WCAC008 with 0.5m @ 61g/t Ag from 8m. Four RC drill holes (26WCRC029 - 032) have been completed to test this trend and assays for these drill holes are pending. The RC holes (26WCRC009-012, 26WCRC022, 26WCRC024) on cross section C – C’ intersected a complex array of intensely silicified quartz-carbonate veins hosted within granite. A high-grade intersection of 2m at 96g/t Ag from 91m in 26WCRC012 is associated with the lower part of this vein networking within ultramafic rocks. In 26WCRC010, this networking is associated with elevated lead grading up to 1.66% Pb from 55m to 70m down hole. The other high grade silver intersection on this cross section is 1m at 157g/t Ag from surface in 26WCRC011. Assays are pending for 26WCRC022 and 024. It is interpreted from logging that 26WCRC022 was drilled obliquely down the MMFZ, as represented by a 117m zone of variably silicified granite and ultramafic rocks.