"That could be years away - we haven't even got resource consent yet.
"No decision has been made about any of those different options."
Napier Port is owned by the Hawke's Bay Regional Investment Company (HBRIC), which is owned by the Hawke's Bay Regional Authority.
Once port directors decide on funding options they will be included in a business case needing approval by both HBRIC and the regional authority.
Authority chairman Rex Graham said there was no doubt the port needed to expand and port directors were duty-bound to consider all options.
Hawke's Bay was experiencing an export boom, with forestry and pipfruit output expected to sharply increase, he said.
Talk of a stake in Napier Port being sold, such as Port of Tauranga's float on the stock exchange, was "just chatter" at this stage.
"You have to keep an open mind and look at all the options going forward," he said.
"It is the port directors' job to decide which way they want to go. I understand they will be looking at all the options and how they could do it."
"It is a decision they will make, but the port does need to grow to meet growth.
"The port directors are saying, where to from here? Do we expand the port and build a new wharf?"
Napier Port chairman Alasdair MacLeod said all options would be looked at.
"I'm not going to rule out anything yet, given I don't know the size of the challenge yet, but it [a partial sale] is not something that is being aggressively pursued," he said.
For the year to the end of September port profit was $11.5m from revenue of $72.7m.
The regional authority was paid a dividend of $7.9 million.
The port is entering its busy season, with the apple harvest under way.
Mr Cowie said he was confident port operations would run smoothly during harvest, despite cargo diverted from Wellington's earthquake-damaged CentrePort.