A Mineral Resource estimate for the Rasp Mine was completed during January and February 2024 (Rasp MRE).  This comprised separate estimates for the Western Mineralisation, Centenary Mineralisation and Main Lode zones  including Blackwood - Thompson, British Zone, North Boundary Pillar and Wilson.  

Investors are cautioned that the Rasp MRE does not capture immaterial depletion caused through mining  operations carried out since the completion of the Rasp MRE.

The Rasp MRE is a total of 10.1 Mt at 5.7% Zn, 3.2% Pb and 49g/t Ag. This includes 1,185 kt at 6.3% Zn, 3.9% Pb and 59.8  g/t Ag of Measured Resources, 2,610 kt at 5.0% Zn, 3.9% Pb and 58.3 g/t Ag of Indicated Resources and 6,260 kt at  5.8% Zn, 2.7% Pb and 42 g/t Ag of Inferred Resources. 

Ordinary Kriging (OK) was the preferred estimation method and was carried out for lead, zinc and silver for each  mineralised domain. Some smaller zones within the Western Mineralisation, Centenary Mineralisation and Wilson  used an Inverse Distance Weighted (IDW) method. The total Mineral Resource is based on a 5% Pb+Zn cutoff. The  Mineral Resources are listed in the downloadable document.