Prime Minister Prayut Chan-o-cha will attend a US-Asean special summit from May 12-13, said Deputy Prime Minister and Foreign Minister Don Pramudwinai.
Thailand ranks among the 10 members of the Jakarta-based Association of Southeast Asian Nations (Asean).
Mr Don said the summit was originally due to be held last October but some of the bloc's leaders as well as US President Joe Biden were not available at the time, prompting it to be postponed.
