The Government is open to joint ventures with some state-owned business it says are not for sale.
Finance Minister Bill English reiterated to The Nation today that Television New Zealand, NZ Post and KiwiRail are not for sale.
The state-owned businesses all face challenges, including from new technology.
Mr English says the Government is trying to preserve the value of the taxpayer's investment in these businesses.
"They're not for sale but we will need to look at a range of opportunities, joint ventures [and] mixing and matching how they run their different businesses to try to preserve some taxpayer value," he said.
The Government has been criticised for not selling state-owned Solid Energy when the coal price was high now that the coal miner is in voluntary administration.
It had tagged Solid Energy for sale but problems were discovered in due diligence and the coal price plunged.