"As a vital central New Zealand gateway for international cargo, the Port of Napier uses electronic data interchange (EDI) software to co-ordinate its various logistics functions," he said.
"This crucial piece of software transfers shipping data between the port, shipping lines, Customs and Maf via the ultra-fast fibre network.
"Basically if the EDI stops, the port stops. It would cause a flow-on affect that would cause a massive loss in productivity."
UnisonFibre is in the final stage of the fibre network build in Hawke's Bay, with Havelock North, Omahu and Napier CBD to be completed by the middle of the year. Wellington-based SafeNZ was the port's retail fibre provider.