His Royal Highness Prince Haji Al-Muhtadee Billah ibni His Majesty Sultan Haji Hassanal Bolkiah Mu'izzaddin Waddaulah, the Crown Prince and Senior Minister at the Prime Minister's Office, received in separate audiences, Her Excellency Marian Jocelyn R. Tirol-Ignacio, outgoing Ambassador Extraordinary and Plenipotentiary of the Republic of the Philippines to Brunei Darussalam; Her Excellency Caryn Roberta McClelland, outgoing Ambassador Extraordinary and Plenipotentiary of the United States of America to Brunei Darussalam; and His Excellency Tran Anh Vu, outgoing Ambassador Extraordinary and Plenipotentiary of the Socialist Republic of Viet Nam to Brunei Darussalam. The Audience Ceremonies took place at Qashr Al-Meezaan.

His Royal Highness first received in audience Her Excellency Marian Jocelyn R. Tirol-Ignacio. Her Excellency presented her Letter of Credence to His Majesty on the 24th of May 2022.

His Royal Highness then received in audience Her Excellency Caryn Roberta McClelland. Her Excellency presented her Letter of Credence to His Majesty on the 24th of May 2022.

His Royal Highness also received in audience His Excellency Tran Anh Vu. His Excellency presented his Letter of Credence on the 13th of September 2023.