This leaves all Duketon production from Duketon South open pits and undergrounds," the company said. "The AISC guidance range reflects this overall reduced production along with the increased proportion of underground ore being mined and increasing mining depths within open pits." Regis said at Tropicana since the severe weather events in March, recovery of open-pit mining performance had been constrained by ongoing supply disruptions, poor labour availability and reduced equipment availability. "Mining activities have yet to normalise and the FY25 production and cost guidance reflects the flow-on impact that these lower-than-expected mining rates continue to have on production," the company said. "At the group level, stockpiled material will continue to supplement mill throughput and, as a result, FY25 AISC includes (a) $150/oz non-cash inventory adjustment."