weir group plc said wednesday that orders in the third quarter rose 19 on year thanks to strong aftermarket spares demand and it backed its guidance for 2022 the uk engineering company said in an update that strong aftermarket spares reflected the highly resilient nature of the business as miners continue to maximize ore production mining market conditions were supportive during the quarter with commodity prices remaining notably above miners cost to produce demand was good across all regions with particular strength in south america the company backed its fullyear guidance of strong constant currency revenue and profit growth operating margin expansion and 8090 free operating cash conversion the group performed strongly in the third quarter significantly increasing orders and delivering sequential revenue growth while mitigating the impacts of inflation chief executive jon stanton said