Alcoa is considering the restart of a fourth line at its Warrick aluminium facility - but it will cost $100 million.
The site currently runs three production lines with the potential for approximately an extra 50,000 tonnes with the introduction of a fourth line at the Newburgh, Indiana, facility.
But the condition of the line is poor, said Alcoa CEO Bill Oplinger.
During a recent earnings call, Mr Oplinger was asked what the conditions would be to restart the Warrick line as well as how much it would cost.
It will require an investment of $100 million and take up to one or two years to restart.
There would be long lead time items specifically around the electrical equipment that would be required to restart the line.
"On paper, the restart of Warrick looks pretty positive at this point. However, what we're trying to really weigh is availability of short-term electricity, availability of long-term electricity, and our ability to successfully run that plant at a four-unit operation," Mr Oplinger said.
Mr Oplinger was asked what the conditions would be to restart the Warrick line during a recent earnings call with investors.
He added: "We have good stability, good safety there today and so we'll factor all that into an analysis of a potential restart of that fourth line."