The deal was signed just before Christmas and is for offtake of 100% of copper cathode produced during phase one of the project, expected to be more than 140,000 tonnes.

The $35 million secured offtake pre-payment facility is part of the targeted A$240-260 million total debt funding package for the Nifty restart, which is well advanced.

Cyprium managing director Barry Cahill said the company was pleased to renew its association with Transamine.

"This is part of a fully funded finance package for the restart of the Nifty copper project," he said.

"The restart project economics remain very robust, and we have continued to make further improvements to the Nifty copper project during the financing process.

"As all of the required regulatory approvals able to be completed prior to finance have been received, we are looking forward to completing our total funding package so that we can commence executing our Nifty copper project restart development plans."

Shares in Cyprium last traded at 10.5c, a six-week high, giving the company a market capitalisation of $73 million.