St Barbara is trading 13.94% down now at A$0.71 after Canada’s Impact Assessment Agency required a federal impact assessment for the planned 15-Mile Processing Hub. - The company described the review as duplicative, adding uncertainty and work to its longer-term development plans. - Nova Scotia approved the Touquoy processing restart, scheduled for November 3. - St Barbara also announced a buy-back and a new Old Austen resource; turnover was A$23.7 million.