evidence: James Shoal is a small bank in the South China Sea, lying under the water at a depth of 22 meters (72 feet). It is located about 80 km (50 mi) from the Malaysian coast and about 1,800 km from the Chinese mainland. Both the PRC and ROC officially claim the shoal as the southernmost feature of China. Malaysia also claims the shoal. As the bank is under the water, there is no way to erect a sovereignty stele. On April 20, 2010, however, the Chinese Marine Surveillance Ship-83 came to the water around the shoal. Several officers of the ship threw a sovereignty stele into the water. The stele is a big and heavy marble engraving with the Chinese characters Zhongguo (China). Another report from 2013 tells the story of Chinese naval officers and soldiers participating in an oath-taking ceremony on waters off Zengmu Ansha, pledging to safeguard China’s territorial integrity and marine interests.