Since the 1980’s, a substantial amount of exploration work has been completed at the Lara project with approximately 323 diamond drill holes totaling over 58,000 m, as well as 679 m of pre-production underground development (decline, drifting, crosscuts and raises) on the Coronation Zone. The main resource, also known as the Coronation Trend, was modeled using Datamine Studio as six discrete zones and consists of continuous pods of zinc and gold rich mineralization. The historical resource estimate is based on the Coronation Trend, which includes the Coronation Zone, the Coronation Extension and the Hanging Wall deposits. In 2008, Caracle Creek International Consulting completed a historic resource for Treasury Metals Inc. described in an Independent Technical Report and Mineral Resource Estimation, Lara Polymetallic Property, April 2008 (Iain Kelso, H.B.Sc., P.Geo., and Stephen Wetherup, B.Sc., P.Geo., co-authors). This report was updated in 2024.