Trade Minister Tim Groser says the Government's plan to force tobacco companies to use plain packaging could set a precedent of concern to businesses "outside tobacco".
Cabinet has agreed in principle to introduce plain packaging for all tobacco products, following a similar move in Australia where the Government is involved in a legal battle.
US business groups have warned that plain packaging for tobacco could backfire on exports, such as dairy and wine, saying that New Zealand could not push for free trade when it was regulating itself.
Mr Groser told TV3’s The Nation there were complexities in following Australia's lead and introducing plain packaging for tobacco products.
He said there was an argument that plain packaging could remove the tobacco companies' intellectual property.
"We need to listen carefully, especially to other companies that would be very concerned if we were setting a precedent on this," he said.
"That might actually go against our own interests."
Legislation would have to be properly designed, he said.
"I'm thinking really outside tobacco I should say."
Critics have said the policy may face legal challenges and contravene trade treaties but Prime Minister John Key said in June that "to the best of my knowledge we have the sovereign ability to control what is on our shelves".
The Government wants to make New Zealand smoke-free by 2025.
NZN