Bunga mas refers to a form of historical tribute sent every three years by vassal states in the Malay Peninsula to the king of Ayutthaya (Siam). The term specifically describes the bunga emas dan perak, which were symbolic offerings provided as part of a formal diplomatic and tributary relationship.
The tribute consisted of two small trees crafted from gold and silver. In addition to these primary items, the vassal states—which included Terengganu, Kelantan, Kedah, Pattani, Nong Chik, Yala, Rangae, Kubang Pasu, and Setul—provided costly gifts such as weapons, various goods, and slaves.