It is possible that Santubong was an important seaport in Sarawak during the period, but its importance declined during the Yuan dynasty, and the port was deserted during the Ming dynasty.
Diyakini, Santubong telah menjadi pelabuhan penting di Sarawak pada masa tersebut, namun kepentingannya menurun pada masa Dinasti Yuan, dan pelabuhan tersebut gulung tikar pada zaman Dinasti Ming.