On 28 October 2025, H.E. Mr. Pisanu Sobhon, Ambassador of the Kingdom of Thailand to the Republic of Peru, presided over the mourning ceremony on the Passing of Her Majesty Queen Sirikit the Queen Mother. The Ambassador gave a citation honoring Her Majesty Queen Sirikit the Queen Mother extraordinary contribution to the Thai people for over 79 years. The Ambassador also led the observation of silence in remembrance of Her Majesty Queen Sirikit the Queen Mother and sign the book of condolences for Her Majesty Queen Sirikit The Queen Mother.