The latest round of power contract talks continued yesterday between state-owned Meridian Energy and the owners of the Tiwai Pt aluminium smelter.
A Meridian spokeswoman and Pacific Aluminium spokesman both said talks were ongoing and the public would be informed when there was something to say.
The Meridian spokeswoman would not confirm if the talks continued at the weekend.
Invercargill Mayor Tim Shadbolt said he was taking an optimistic view about the outcome of negotiations.
"We just want the best outcome at the end of the day . . . that's to keep the smelter," he said.
The smelter company has been engaged in the latest round of talks with Meridian in Wellington since Thursday, as the smelter tries to secure a new power price deal.
If a deal is not reached, the smelter could close and up to 3000 Southland jobs could be affected.