The survey said the main negative factors impacting on exporters in the past year were exchange rates, rising fuel and raw material costs, overseas economic and political conditions and international competition.
"There are numerous factors contributing to difficult exporting conditions," Baxter said.
According to the survey, Australia and China were considered the biggest competitive threats to exporters in this country.
Just over 50 per cent of exporters perceived Australia and China as a threat, with China seen as highly competitive by local manufacturers.
"It is understandable how China can be perceived as an opportunity and a threat," Baxter said.
"China represents a tremendous opportunity for New Zealand exporters, but it's a big exporter itself, therefore competing with New Zealand in other export markets."
Baxter said the response about Australia was "more curious".
"Australia produces some similar commodities to New Zealand and is obviously a close neighbour," he said.
"It may be because there is increased economic uncertainty that potential competition is being felt more keenly."
The DHL Export Barometer surveyed 324 exporters.