Bangladesh firm Western Marine Shipyard was picked by the Ministry of Foreign Affairs and Trade to build the ferry.
Labour's spokesman for economic development, Shane Jones, said the contract showed the Government's new procurement rules were merely paying lip service. "It is bizarre New Zealand's boat building industry was good enough for Oracle Team USA but is not good enough for the Pacific Islands," Jones said.
Executive director of NZ Marine Peter Busfield said the Government's new procurement rules ignored any economic gain from having this vessel built here.
New procurement regulations came into effect in October last year, designed to make it easier for smaller Kiwi companies to tender for Government contracts.
"We believe the Government's procurement requirements are fundamentally flawed as the process does not factor in the economic gain to the country of buying New Zealand made versus importing," Busfield said.
But Joyce disagreed, saying: "To suggest that you go out and spend $14 million more and you get an economic benefit, is a pretty tough call."
It came down to who could deliver the best value for taxpayers' money, he said.
He believed that in this case the Foreign Ministry "went over and above their obligations to try and negotiate a successful tender with a New Zealand company".