Dongxiu 912 class series ships in PLAN service are designated by a combination of two Chinese characters followed by three-digit number. The first Chinese character denotes which fleet the ship is service with, with East (Dong, 东) for East Sea Fleet, North (Bei, 北) for North Sea Fleet, and South (Nan, 南) for South Sea Fleet. The second Chinese character is rather unusual in the Chinese convention in that it is not Wu (坞, short for Chuan-Wu, meaning dry dock), as for most cases for Chinese dry docks in military service, but instead, the second Chinese character is Xiu (修), meaning repair in Chinese, because this dry dock is used for repair missions. However, the pennant numbers may have changed due to the change of Chinese naval ships naming convention.