Financial News Media | Aftermath Silver Announces Mineral Resource Estimate for Challacollo Silver-Gold Project, Chile
The effective date of the estimate is 30 November 2020. The Qualified Person is Dinara Nussipakynova, P.Geo., of AMC Mining Consultants (Canada) Ltd. Mineral Resources are constrained by an optimized pit shell at a long-term metal price of US$20/oz Ag with recovery of 92% Ag and metal price of US$1,400/oz Au with recovery of 75%. Silver equivalency formula is AgEq (g/t) = Ag (g/t) + 57.065 *Au (g/t). The open pit mineral resources are based on a pit optimization using the following assumptions: Plant feed mining costs of US$3.5/t and waste mining cost of $2.5/t. Processing costs of US$1...