On 10 June 2026, over 390 executives and employees representatives from the Isuzu Group Thailand and Tri Petch Group attended and co-hosted the Royal Funeral Chanting Ceremony in tribute to Her Majesty Queen Sirikit, The Queen Mother, at the Dusit Maha Prasat Throne Hall, the Grand Palace.

The ceremony was held to express their deepest condolences, and sincere gratitude for Her Majesty’s immeasurable benevolence, as well as to honor and commemorate Her numerous royal initiatives dedicated to the well-being and prosperity of the Thai people.