The following countries have confirmed that they will participate in APPF28:
Oceania region
Australia
Federated States of Micronesia
Fiji
New Zealand
Southeast Asia region
Cambodia
Indonesia
Laos
Philippines
Malaysia
Singapore
Vietnam
Thailand
Northeast Asia region
China
Japan
Korea
Mongolia
Russia
Americas region
Canada
Chile
Mexico
Observer countries
Brunei Darussalam
Cook Islands
Kiribati
Nauru
Samoa
Solomon Islands
Tonga
Niue
Palau
Tuvalu