Siosaia Moehau said it had been very difficult to get government buy in and earlier hopes a Fijian provider would help out, fell through.
He said they are forging ahead anyway and have begun sourcing resources including looking for some land close to the main hospital.
Mr Moehau said they also wish to set up home based dialysis for patients.
"Well we have been struggling for help trying to establish the dialysis treatment here in Tonga and hopefully soon we should have something solid going on," he said.
