On 29 October 2025, His Excellency Mr. Nadhavathna Krishnamra, Ambassador of Thailand to the United Kingdom, led officials and staff of the Royal Thai Embassy, as well as members of Team Thailand and their spouses, in a volunteer activity to commemorate King Bhumibol Adulyadej the Great and King Chulalongkorn the Great on the occasion of their Memorial Day.

The activity supported the preparations for the Buddhist seven-day funeral rites for Her Majesty Queen Sirikit The Queen Mother, to be held on 30 October 2025, and the Royal Kathina Ceremony, to be held on 1 November 2025 at Buddhapadipa Temple in London.