There were 300 delegates in total at the expo.
Ms Dunne said the group were all influential as they decided which information about attractions would be given out to customers in promotional material and brochures.
Mr Arrowsmith, who is also chairman of the Explore Central North Island tourism collective, said the expo was a "premiere opportunity" to showcase the attractions of the Bay of Plenty.
"With the event being held in Rotorua we have greater opportunity to 'famil' our international visitors in the region.
"The key tourism operators that we visited yesterday are export ready and a significant part of our tourism export earnings."
Mr Arrowsmith said the aim of the tour and the expo was to "wow" the international buyers as they could help to significantly increase international visitors to the region, which would have a flow-on effect for all tourism operators, retailers, accommodation, hospitality and other service providers.
"International visitors spend $110 million in our region each year on our local products and services and we aim to increase this."
Today, Mr Arrowsmith will be hosting Prime Minister John Key at the last day of the three-day Trenz expo.