Mr Cowie said the port was working aggressively to secure long-term growth in a volatile environment.
"There are a number of concerns such as the financial plight of the international container shipping lines, the resilience in the log trade to the high US/NZ dollar cross rate and the likelihood of some flow-on benefits, at least in the short term, from the industrial disruption in the upper North Island."
The December quarterly result was achieved prior to Fonterra and shipping line decisions to redirect dairy exports through Tauranga and Napier.
A recent productivity report showed Napier performing below other ports, judged in the number of containers handled per hour by crane.
Mr Cowie said the port's performance went beyond the scope of that simple statistic.
"The port was already moving on a number of initiatives to lift overall crane and vessel loading rates, as identified in the draft Productivity Commission Report but noted that real productivity was more than just the speed of loading containers.
"The Port is justifiably proud of its achievements with its positive EVA (Economic Value Added) calculations over the recent past which were also highlighted by the Productivity Commission Report."