The Kainantu property is located within the New Guinea Thrust Belt, close to its northern contact with the Finisterre Terrane. The Kainantu area is underlain by rocks of the Early Miocene Bena Bena Formation, comprising pelite, psammite, conglomerate and marl beds metamorphosed to greenschist to amphibolite grade. These are unconformably overlain by Miocene age Omaura Formation consisting of volcano-lithic sandstones and siltstones and numerous fossiliferous limestone lenses. The overlying Yaveufa Formation consists of basaltic and andesitic flows, agglomerates, volcanoclastic sandstone and limestone (Tingey and Grainger, 1976). The mid-Miocene Akuna Intrusive Complex consists of multiple phases ranging from olivine gabbros, dolerites, hornblende gabbros and biotite diorites to granodiorites. Gold-copper deposits within the SW Pacific Magmatic Arcs have been classified into three main groups by Corbett and Leach (Corbett and Leach, 1997): - Porphyry-related (including gold skarn); - High sulphidation gold-copper; - Low sulphidation (including sediment-hosted replacement); - Intrusion related Gold Deposits; - Carbonate-base metal Au Deposits. Telescoping may overprint the varying styles of low sulphidation gold mineralization upon each other or upon the source porphyry intrusion. MINERALIZATION Dominant host rock of the Kora Consolidated-Irumafimpa vein systems is the highly sheared and deformed Bena Bena Formation, composed of low grade metamorphosed phyllites and a ........

K92ML made a strategic decision in early 2018 to cease mining activities at Irumafimpa and to devote its resources instead to development of and production from Kora North.

Mining operations focused on Kora’s K1 and K2 veins and Judd’s J1 vein, for a total of seven levels mined. On the K1 vein, development tonnes were mined on five levels and long hole stoping (modified AVOCA method) was mined from five sublevels (1150, 1170, 1205, 1225 and 1245 mRL level). On the K2 vein, development tonnes were mined from two sublevels and long hole stoping (modified AVOCA method) on the 1185 mRL level. J1 vein mining was from the 1235 mRL development. Importantly, Q4 2020 marked the third full quarter of long hole stoping, which commenced in March 2020 on the K1 vein. Long hole stoping has performed well for both the K1 and K2 vein with less dilution than expected from both veins in Q4 2020, particularly the K1 vein. The combination of additional levels developed through 2020 and strong performance from long hole stoping has provided a notable positive impact on operational flexibility.

Previously, the instability associated with the gouge led to wall exposures being limited to a maximum of 5m in height, and the use of cut and fill mining for K1 and also for KL. The cut and fill stopes have been extracted in 2.5m high lifts mined by air-leg, and then by mechanised drill jumbo.

In conjunction with on-going geotechnical assessments, K92ML successfully trialle ........

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