On 18 September 2025, the Royal Thai Embassy in Athens organised a ceremony on the Auspicious Occasion of the 100th Anniversary of the Birth of His Majesty King Ananda Mahidol, Rama VIII, on 20 September 2025. H.E. Mr. Sathana Kashemsanta Na Ayudhya, Ambassador of the Kingdom of Thailand to the Hellenic Republic, presided over the ceremony at the Thai Residence in Athens and led the Embassy’s officials in presenting floral offerings as a tribute and in paying homage to His Majesty King Ananda Mahidol.

Embassies of ASEAN member countries in Athens namely Indonesia, the Philippines, Thailand and Vietnam, as the ASEAN Committee in Athens (ACAT) under the current chairmanship of Indonesia, celebrated the 58th ASEAN Day on 8 August 2025 at the Indonesian Residence. The event was attended by representatives from the Greek Ministry of Foreign Affairs and Embassies of the Dialogue Partner countries of ASEAN and distinguished guests from various sectors.

On 8 August 2025, H.E. Mr. Sathana Kashemsanta Na Ayudhya, Ambassador of Thailand to the Hellenic Republic, had a meeting with Ambassador Spyridon Voulgaris, Director of A9 Directorate for Asia and Oceania of the Ministry of Foreign Affairs of the Hellenic Republic, to provide the information on the border situation between Thailand and Cambodia where Cambodia initiated the indiscriminate attacks on Thailand resulting in the losses of civilian lives and damages of civilian infrastructure, including a hospital and a school.

On 7 August 2025, the Royal Thai Embassy in Athens organised a ceremony to celebrate the auspicious occasion of Her Majesty Queen Sirikit the Queen Mother's Birthday Anniversary at the Ambassador’s Residence. H.E. Mr. Sathana Kashemsanta Na Ayudhya, Ambassador of the Kingdom of Thailand to the Hellenic Republic, presided over the ceremony and led the Embassy’s officials and staff, as well as the Thai community and their families residing in the Hellenic Republic to pay homage to Her Majesty Queen Sirikit the Queen Mother, perform the candle-lighting activity and sign the book of well-wishes on behalf of the Thai communities in the Hellenic Republic, the Republic of Malta, and the Republic of Serbia.

On 29 July 2025, the Royal Thai Embassy in Athens organized another Royal Thai Volunteers Project on the Auspicious Occasion of His Majesty the King’s Birthday Anniversary 28 July 2025 at the Thai Residence in Athens. H.E. Mr. Sathana Kashemsanta Na Ayudhya, Ambassador of the Kingdom of Thailand to the Hellenic Republic, along with the Embassy’s officials and staff, provided lunch of popular Thai dishes, beef and chicken massaman curry, for approximately 70 staff members of Filothéi-Psychiko Municipality as a token of appreciation for their services to the local community.