Approximately USD$200 million in exploration and development expenditures have been spent on the Yandera Copper Project EL 1335 since 2005. Work completed and studies funded to date include approximately 154,600 meters of exploration drilling, the vast majority of which has focused on the Yandera Central deposit, as well as scoping studies, engineering studies, environmental studies, the 2017 Pre-Feasibility Study*, and infrastructure-related studies.
The Preliminary Feasibility Study titled, Independent Technical Report on the Yandera Project – Pre-Feasibility Study*, prepared by Worley Parsons, with an effective date of November 27, 2017, estimated a historical open-pit, Measured and Indicated resources of 728 million tonnes grading 0.39% copper equivalent.
The 2017 Preliminary Feasibility Study followed the National Instrument 43-101 Technical Report – Updated Resource Estimate Yandera Copper Project Papua New Guinea, prepared by SRK Consulting, with an effective date of December 15, 2016.