South China Sea: Chinese boats keep up steady presence at disputed Whitsun Reef, says US ship tracker
- Activity of fleet over the last two years defies commercial explanation, Asia Maritime Transparency Initiative says
- Blue skies in the area undermine China’s claims that vessels were riding out bad weather, report says

China has kept up a sustained presence around a disputed South China Sea reef for two years, according to a Washington-based think tank – despite Beijing’s claims that its vessels were only sheltering in the area.
The Centre for Strategic and International Studies’ Asia Maritime Transparency Initiative (AMTI), which tracked the vessels’ automatic identification system broadcasts, also identified 14 of the Chinese ships captured in photos and videos taken by Philippine coastguard patrols at Whitsun Reef.
Whitsun is a V-shaped reef in a shallow coral region of the resource-rich Spratly Islands and is now at the centre of a deepening maritime row between Beijing and Manila.
According to AMTI, the 14 ships, all from southern China’s Guangdong province, were first tracked patrolling Union Banks, which includes Whitsun Reef, in early 2019 and nine of them have broadcast AIS from Whitsun several times.
“As with other known militia deployments, the behaviour of these vessels defies commercial explanation. Most have remained in the area for weeks, or even months, riding at anchor in clusters without engaging in any fishing activity,” AMTI said in a report on Wednesday.
“Many are trawlers which, by definition, must move to fish. And blue skies have debunked the initial excuse from the Chinese embassy in Manila that they were riding out a storm.”
