He said Britain entering the European common market was hard back in the 1970s, but it forced New Zealand to diversify its exports, putting it in a much stronger position today.
"We have made the transition and have made it very successfully. We are now, in the next two to three years, about to cash-in on the efforts of many governments to build these new platforms."
Although he said there was a one in five chance the forecast 3 per cent average growth was overly optimistic, New Zealander's needed to focus on the fact the glass was four fifths full and there was a much greater chance the economy would meet or exceed that forecast.
Groser stressed Australia was still New Zealand's largest export market at 23 per cent - still more than twice the value of China's 11 per cent of exports - but working with Asia was becoming increasingly important.
Last week he announced progress towards an economic co-operation agreement with Chinese Taipei and Groser said New Zealand was ahead of the rest of the world in forming trade agreements with all three sectors of the amalgamating Chinese economy - mainland China and Hong Kong, which New Zealand already has free trade agreements with, and Chinese Taipei.
"This will give our exports unparalleled opportunities that no other countries have with this huge emerging country."
Indonesia is another market he said would increase in importance in the coming years. "It is now a $1 billion market for New Zealand, but we will sell more there than to Britain in a matter of years."