K92 Mining Inc. announced the results of the updated Preliminary Economic Assessment on its Kora and Kora North gold deposits, which together with its Irumafimpa gold deposit (Irumafimpa) comprise the Kainantu Gold Project (the Kainantu Project) in Papua New Guinea. K92 engaged H and S Consultants Pty Ltd. to complete a Mineral Resource Estimate for the Kora North Deposit. This resource together with the previously reported Kora Mineral Resource Estimate dated March 2017 (Table 2) provide the resource base for the updated PEA. K92 engaged Mincore Pty Ltd. (Mincore) to complete a PEA for the expansion of the existing processing plant to double its capacity to approximately 400,000 tonnes per annum. The study found that the current crushing, milling and concentrate handling circuits have sufficient capacity to treat the Kora mine material at a rate of 400,000 tonnes per annum (tpa), subject to upgrading the crushing and flotation circuits and plant services. The estimated total cost of such expansion and upgrading would be US$3.7 million, including EPC and commissioning with a contingency of 10%. The company engaged Australian Mine and Development Pty Ltd. (“AMDAD”) to undertake the PEA mine plan for Kora and Kora North, which involved: applying financial and processing parameters to determine cut-off grades for stope design. generating three-dimensional stope shapes and mining inventory using the CAE Mineable Shape Optimiser (MSO) program. creating a conceptual development layout to suit the MSO inventory. producing a project cash-flow model. producing a simple mining schedule as input to the cash-flow model. Mineralization comprises two parallel, steeply west dipping, N-S striking quartz-sulphide vein systems, K1 & K2, within an encompassing dilatant structural zone hosted by phyllite. An additional structure, the Kora Link, has also been defined and provides a possible link between the two main vein systems. Underground drilling consists of diamond core for a range of core sizes depending on length of hole and expected ground conditions. Sampling is sawn half core under geological control and generally ranges between 0.5m and 1m. Underground face sampling is completed for every fired round and is to industry standard. QAQC data indicated no significant issues with the accuracy of the on-site analysis. Core recovery of the mineral zone was initially 90%, this has improved to >95%. There is no relationship between core recovery and gold grade. Geological logging is consistent and is based on a full set of logging codes covering lithology, alteration and mineralization. The geological interpretation of the vein systems is represented as 3D wireframe solids snapped to a combination of diamond drillhole data and underground face sampling. Definition of the wireframes is based on identified gold mineralisation in drillcore nominally at a 0.2g/t Au cut off in conjunction with geological control/sense and current mining widths.