Trade Minister Tim Groser says he is disappointed a landmark free-trade pact stumbled after talks broke down in Hawaii.
Negotiations among 12 Pacific nations failed to reach a conclusion.
"Good progress was made this week, but a number of challenging issues remain, including intellectual property and market access for dairy products", Mr Groser said.
"We will continue to work toward a successful conclusion. This is about getting the best possible deal for New Zealand, not a deal at any cost."
Trans-Pacific Partnership negotiations are aimed at erasing most tariffs and other barriers to trade and investment among participants.
It would also clarify and standardize trade rules, making it easier for companies to sell goods and services in the Pacific Rim.
The wide-ranging discussions have addressed tariffs on autos, rice and dairy products, as well as intellectual property protections for pharmaceuticals.