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 and Her Royal Highness Paduka Seri Pengiran Anak Isteri Pengiran Anak Sarah binti Pengiran Haji Salleh Ab Rahaman attended the final day of the Aewon Open Badminton Championship