Trade Minister Todd McClay has expressed disappointment at Labour's confirmation it will vote against the Trans Pacific Partnership legislation.
A report on the TPP was last week presented to Parliament after public hearings around the country.
In its minority report, the Labour Party expressed strong opposition to the TPP, saying the Government had failed to effectively represent the long-term interests of New Zealanders.
"As it stands, we cannot support the ratification of the Trans Pacific Partnership Agreement," the Labour Party said.
New Zealand had "weakened" its sovereignty for relatively small gains, Labour said.