The Tonga embassy was opened this week in Nuku’alofa and in March the US signalled plans to open an embassy in Vanuatu. There are also plans for an embassy in Kiribati.
Papua New Guinea is negotiating security deals with the United States and Australia, and Papua New Guinea Prime Minister James Marape has been invited to visit Beijing this year.
Hipkins said he “welcomed” Biden’s visit to the Pacific.
“That’s something that New Zealand has encouraged and we’re very supportive of it.”
In Papua New Guinea, Biden would meet with Prime Minister Marape and other Pacific Island Forum leaders, who had already planned to meet in Port Moresby on May 22 with India’s Prime Minister, Narendra Modi.
Hipkins and Australian Prime Minister Anthony Albanese are also expected to be there.
“We haven’t received a formal invitation at this point,” Hipkins said.
“But in the event that I do receive an invitation that would be my intention to accept it.”
The White House said Biden and Pacific leaders would “discuss ways to deepen co-operation on challenges critical to the region and to the United States such as combatting climate change, protecting maritime resources, and advancing resilient and inclusive economic growth”.
“As a Pacific nation, the United States has deep historical and people-to-people ties with the Pacific Islands, and this visit – the first time a sitting US President has visited a Pacific Island country – further reinforces this critical partnership.”