Trade Minister Todd McClay is seeking meetings about Brexit with his counterparts from the European Union and Britain at a G20 trade ministers meeting in China to which New Zealand has been invited.
He said he wanted to discuss New Zealand's best way forward in light of Britain's vote to leave the EU.
"In the meantime, it is important for exporters to be assured that our economic relationship with the UK and Europe will remain the same for the foreseeable future.
"Even before Friday's referendum, we had sought assurances from UK and EU officials that the rules around New Zealand access would not change until they have negotiated new ones with us," he said.
"We have received those assurances."