West Coast Silver (ASX:WCE) Assays Identify Several Significant High-Grade Silver and Gold Zones

22 August 2025

Price Sensitive Announcement $

Highlights:

• Assays from drill hole 25WCDD011 have identified several significant highgrade silver zones including:
• 17 metres at 858g/t Ag from 5 metres including:
• 2 metres at 6,349g/t Ag from 7 metres;
• 10 metres at 850g/t Ag from 47 metres including:
• 3 metres at 2,593g/t Ag from 50 metres; and
• 13 metres at 1,615g/t Ag from 62 metres including:
• 2 metres at 10,049g/t Ag from 63 metres.
• Native silver has been identified in 25WCDD011.
• 25WCDD011 has also intersected high grade gold including:
• 1 metre at 11.1g/t Au from 51 metres.
• Assays from drill hole 25WCDD012 have also returned significant high-grade silver intercepts including:
• 6 metres at 317g/t Ag from 10 metres including:
• 1m at 1,455g/t Ag from 13 metres; and
• 14 metres at 162g/t Ag from 18 metres.
• Drilling at Elizabeth Hill continues to identify mineralisation and these results will be used to outline a near surface resource.

Overview:

West Coast Silver Limited has advised it has received further outstanding silver intercepts from the inaugural diamond drill program (12 holes for 1,183m) at the high-grade Elizabeth Hill Silver Project in the Pilbara. Of the assay results for four drill holes (25WCDD003, 25WCDD004, 25WCDD011 and 25WCDD012), exceptionally shallow, high grade silver results were returned for 25WCDD011 and 25WCDD012 (Figure 3 and Figure 4).
Both holes intersected significant silver mineralisation from near surface (Table 1), with particularly impressive results from hole 25WCDD011 which intersected:

• 17 metres at 858g/t Ag from 5 metres including:
  o 2 metres at 6,349g/t Ag from 7 metres;
• 10 metres at 850g/t Ag from 47 metres including:
  o 3 metres at 2,593g/t Ag from 50 metres; and
• 13 metres at 1,615g/t Ag from 62 metres including
  o 2 metres at 10,049g/t Ag from 63 metres.
  Drill hole 25WCDD011, which was strategically drilled to test depth and mineralisation continuity, has also intersected significant high grade gold mineralisation (Table 2) including 1 metre at 11.1g/t Au.

  Along with significant silver and gold mineralisation, native silver has also been identified in 25WCDD011 (Figure 1 & Figure 2). This development has initiated investigations within the company into the viability of simplistic gravity separation process to recover free silver from Elizabeth Hill style mineralisation. Elizabeth Hill is located adjacent to a number of existing processing facilities including Radio Hill which is located ~25km to the north. Utilisation of these facilities will be factored into the companies assessment into the potential processing of Elizabeth Hill material.

In addition to 25WCDD011, drill hole 25WCDD012 has also intersected high grade silver from near surface including:

• 6 metres at 317g/t Ag from 10 metres including.
  o 1m at 1,455g/t Ag from 13 metres.

Company Notes:

Commenting on the results, Executive Chairman Bruce Garlick said:
“We are extremely pleased with the delivery of more outstanding results from our maiden drill program at Elizabeth Hill. We have intersected more high-grade silver from surface and with grades up to 10,049g/t we are now very confident in the near-surface potential at Elizabeth Hill.

What is even more encouraging is the intersection of high-grade gold up to 11.1g/t in hole 25CWDD011. We look forward to additional assay results that should be received in the coming weeks.”

Full Company Announcement: West Coast Silver ASX Announcement