The Union representing workers at two potash mines operated by Nutrien says it's shocked and disappointed the resource giant will be temporarily shutting down three mines here in Saskatchewan. Nutrien said in a statement issued on Wednesday the production downtime is in response to a "short-term slowdown in global potash markets." Trevor Bothorel/CBCNutrien's statement explained if all three of the potash facilities were to remain idled for the full eight weeks, potash production could be reduced by 700,000 tonnes of potash. NutrienKruger said ideally, Nutrien would have shut down production at the sites while finding other work for USW members. Kruger said the USW has a number of questions about the short-term shutdown and he expects Nutrien to be providing some answers in the coming days and weeks.