Type 903 replenishment ship
The Type 903 combined replenishment ship (Chinese: 903型综合补给舰, NATO reporting name: Fuchi) is a class of replenishment oiler (AOR) built for the People's Liberation Army Navy, serving as a principal fleet auxiliary ship for blue-water expeditionary missions by the People's Republic of China. They resemble HTMS Similan, an AOR built by China for Thailand delivered in 1996.
Source: Wikipedia — Type 903 replenishment ship (CC BY-SA 4.0)