Vista gold corp. files updated preliminary feasibility study for the mt todd gold project

Vista gold corp. announced that it has completed and filed the national instrument 43-101 – standards of disclosure for mineral projects ("ni 43-101") preliminary feasibility study (the "pfs") for its mt todd gold project ("mt todd" or the "project") in northern territory, australia to support the results of its updated preliminary feasibility study announced on september 10, 2019. the pfs successfully confirmed the efficiency of ore sorting across a broad range of head grades, the natural concentration of gold in the screen undersize material prior to sorting, the efficiency of fine grinding and the resulting improved gold recoveries, and the selection of flsmidth's vxp mill as the preferred fine grinding mill. the pfs provides an assessment of the project at a gold price of usd 1,350 per troy ounce with a foreign exchange rate of usd 0.70 per australian dollar. the base case for the pfs evaluates a 50,000 tonne per day ("tpd") owner-operated, open-pit operation with a conventional three-stage crush and two-stage grind comminution circuit followed by a carbon-in-pulp gold recovery circuit. the results of an alternate case designed to mine and process 33,000 tpd are also included in the pfs. additionally, the pfs incorporates the results of metallurgical optimization work, a redesign of the fine grinding circuit, construction and ramp-up schedule changes and a comprehensive review of all aspects of the project, including consideration of an independent benchmarking study of key pfs parameters.
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