Commercial ships navigating the strategic waters around the Strait of Hormuz and the Persian Gulf have begun identifying themselves as China-linked since the outbreak of the Iran war, marine traffic data reveals. This tactical shift appears to be a deliberate effort by vessel operators to mitigate the risk of being targeted in regional attacks.
Vessels Broadcasting Chinese Ownership Signals
Analysis of data from the ship tracking platform MarineTraffic, conducted by The Associated Press, shows at least eight vessels in or near the Persian Gulf and the Gulf of Oman have altered their declared destination signals. These transmissions now include short messages such as "CHINA OWNER" or "CHINA OWNER&CREW," publicly broadcasting their perceived affiliations.
A Strategic Move for Risk Reduction
"The primary objective for vessels publicly declaring themselves as 'Chinese' while transiting the Gulf or the Strait of Hormuz is to lower the likelihood of attack, rather than to ease passage through the strait itself," explained Ana Subasic, a trade risk analyst at data and analytics firm Kpler, which owns MarineTraffic. Subasic noted that Iran and its affiliated groups have generally refrained from targeting ships associated with China, owing to China's relatively neutral diplomatic stance and its robust economic ties with Iran.
Kun Cao, client director at consulting firm Reddal, interpreted the signals as a clear warning: "The message is essentially, 'do not mistake me for the kind of ship you said you would hit.'" This precaution comes as Iranian attacks on vessels in the Persian Gulf and wider region have escalated concerns among shipping companies, with at least 19 commercial ships damaged in the conflict as of Thursday, 12 March 2026.
Questionable Effectiveness and Verification
Despite the strategy, the actual efficacy of declaring Chinese links to avoid attacks remains uncertain. Rico Luman, a senior economist at Dutch bank ING specializing in transport and logistics, pointed out that while many bulk carriers have strong connections to China in terms of ownership, operation, and cargo, the impact of such declarations is unclear. Notably, most of the eight vessels identified by MarineTraffic were not China-flagged; their flag states included Panama and the Marshall Islands. Cao emphasized that in commercial shipping, a vessel's flag often "has little to do with the ship owner's nationality."
How Destination Signals Work
Destination signals are short notes manually entered by a ship's crew into the vessel's transponder, a global positioning system locator, and broadcast publicly. According to Subasic, these signals typically display the ship's intended next port and are designed to aid navigation safety, traffic awareness, and port planning. However, because they are not strictly verified in real time, "some vessels occasionally use it to display additional information or signals, such as references to ownership or nationality," she added.
Precedent from Red Sea Incidents
This tactic is not entirely new. During earlier Houthi attacks in the Red Sea, some vessels adopted a similar approach by declaring links to China or its crew, in an apparent effort to reduce risks from the Iranian-backed Houthis. The current situation in the Persian Gulf mirrors this strategy, as operators seek to leverage perceived diplomatic protections amid ongoing hostilities.
As the Iran war continues, the maritime industry remains on high alert, with these signal changes highlighting the adaptive measures taken by commercial shipping to navigate volatile geopolitical waters. The blend of actual Chinese ties and strategic declarations underscores the complex interplay between global trade, security, and international relations in conflict zones.
