Prime Minister Hun Sen will take part in the 12th Asia-Europe Meeting, which will take place in Brussels from October 18 to 19.
The premier also confirmed his attendance at other summits yesterday and mentioned official visits he will make later this year.
Speaking to thousands of garment workers in Kandal province, the premier said European Council president Donald Tusk and European Commission president Jean-Claude Juncker sent him a letter inviting him to ASEM in January.
Mr Hun Sen added he was writing a letter of acceptance to the EU.
“So it means that after immediately forming a new government, we will go to join ASEM. I am writing a letter confirming that I will attend,” he said.
He also plans to pay official visits to a few European countries as well as Turkey while he’s there.
In January, the Foreign Affairs Ministry confirmed that Mr Hun Sen would pay an official visit to Turkey later this year. The visit reflects the progressive and developing relationship between the two countries.
The premier said that after coming back from Europe, he could pay a visit to Japan and some other countries as he would be attending the Mekong-Japan Summit around that time.
Mr Hun Sen told garment workers about his upcoming trips, saying he would go to Vietnam in June to attend the Greater Mekong Subregion Summit after he came back from the Asean-Australia Special Summit which takes place next week.
He will also join the ACMECS (Ayeyawady-Chao Phraya-Mekong Economic Cooperation Strategy) and CLMV (Cambodia, Laos, Myanmar and Vietnam) summits in June in Thailand.
In January, Mr Hun Sen flew to India to join the Asean-India Summit and pay an official visit to discuss bilateral ties and strengthen the relationship between the two countries.