[1] The remainder, Yongjian and Yongji, were built in 1915 by the Jiangnan Shipyard in China;[2] these ships had added poop decks.

To compensate, the Jiangnan Shipyard was contracted to build two more Yongfengs; these and a few minor gunboats were the last ships to enter the Republic of China Navy (ROCN) for a decade.

In March 1926, the gunboat supported the amphibious landing of Zhang Zuolin's forces near the Taku Forts controlled by Feng Yuxiang.

)[13] In 1926, Chiang Kai-shek used the actions of Zhongshan as a pretext to purge Communist influence from the National Revolutionary Army in the Canton Coup.

Admiral Shen scuttled the NES' ships, including Yongxiang, as blockships; guns were removed to equip Chinese field artillery.

Yongjian did not join the retreat because she was refitting at the Jiangnan Shipyard;[16] the gunboat was subsequently sunk by aircraft on 25 August.

[17] Zhongshan, Yongji and other gunboats waited at Hankou to evacuate government officials to the wartime capital of Chongqing.