TASMANIA — Australia’s last paper mill and supplier of newsprint remains locked in negotiations for power security, with Tuesday’s meeting to resolve an impasse over costs concluding with no outcome. As one of Tasmania’s major industrials, the Boyer pulp and paper mill in New Norfolk is also one the state’s largest power users. Aurora Energy is seeking a $7 million bank guarantee to cover energy costs for the mill as it looks to electrify and move away from its coal-powered boilers, a figure Boyer owner David Marriner has labelled “obscene”. A spokesperson for the Boyer Mill said discussions had been “constructive”, and remained committed to ensuring a positive outcome. Aurora Energy said it would “continue to negotiate in good faith”. …The Boyer Mill, which is currently Tasmania’s fourth-largest carbon emitter, is working to convert its coal boilers to electric after years of energy concerns.