Socotra Rock, also known as Ieodo (Korean: 이어도; Hanja: 離於島; MR: Iŏdo), Parangdo (파랑도; 波浪鳥; P'arangdo), or Suyan Islet (simplified Chinese: 苏岩礁; traditional Chinese: 蘇巖礁; pinyin: Sūyán Jiāo), is a submerged rock 4.6 metres (15 ft) below sea level (at low tide) located in the Yellow Sea.

[2] However, the rock is the subject of a maritime dispute between China and South Korea, which consider it to lie within their respective exclusive economic zones.

[8] Socotra Rock's Korean name was officially designated as "Ieodo" on 26 January 2001, by the Korea Institute of Geology.

[17] In September 2006, the Chinese Foreign Ministry spokesman Qin Gang (秦刚) stated that China regarded South Korea's "unilateral" activities in the region, referring to Korean scientific observatories on Socotra, to be "illegal"; no islands were mentioned, and it was stated that China had no territorial dispute with South Korea.

[18] However, China and South Korea dispute which is entitled to claim it as part of the Exclusive Economic Zone (EEZ).