On 15 December 2025, H.E. Mr. Vijavat Isarabhakdi, Vice Minister for Foreign Affairs, had a discussion with Honourable Mr. Justin Tkatchenko, Minister for Foreign Affairs of the Independent State of Papua New Guinea. The main purpose of the Minister’s visit to Thailand was to prepare for the upcoming official inauguration of the Embassy of Papua New Guinea in Thailand.

The Foreign Minister of Papua New Guinea conveyed condolences on the passing of Her Majesty Queen Sirikit The Queen Mother, while the Vice Foreign Minister congratulated Papua New Guinea on the 50th anniversary of the declaration of independence in 2025, as well as the intention to organize an opening ceremony to officially establish the Embassy of Papua New Guinea in Thailand.

Both sides also discussed subjects of mutual interest, including trade, investment, development cooperation, agriculture, public health and tourism. They also exchanged perspectives on regional security issues in Southeast Asia and the Pacific.