A United States-sanctioned oil tanker linked to China has transited the strategically vital Strait of Hormuz, testing a newly announced naval blockade ordered by Donald Trump targeting Iranian oil exports. The vessel, named Rich Starry, is at the center of rising tensions as global markets closely monitor developments in one of the world’s most critical energy chokepoints.

The tanker, previously known as Full Star, was blacklisted by Washington in 2023 for allegedly assisting Iran in evading energy sanctions. It remains unclear whether the vessel recently docked at Iranian ports or is currently carrying oil cargo. The ship initially attempted to navigate the strait near Qeshm Island but turned back shortly after the blockade came into force, only to make a second attempt within 24 hours.

Ship-tracking data indicates that the Rich Starry broadcast details identifying Chinese ownership and crew during its passage, a move often used for safety transparency. However, its transit is being seen as a direct challenge to the US-led enforcement measures. Another tanker, Elpis, was also tracked exiting the Persian Gulf into the Gulf of Oman around the same time, with data suggesting it had previously docked at an Iranian port.

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The blockade has triggered widespread uncertainty across the global shipping industry and energy markets. Traders and shipping firms in the Middle East and Asia have reportedly paused operations, awaiting clarity on enforcement guidelines and the extent of restrictions. Notably, no vessels with active transponders have been recorded entering the Persian Gulf since the blockade’s implementation.

Concerns are particularly high among Asian economies dependent on Middle Eastern oil supplies. Wang Yi has called for diplomatic efforts to ease tensions, urging stakeholders to prioritize dialogue between Tehran and Washington. The situation underscores the broader geopolitical risks tied to energy security and maritime trade routes in the region.

Further complicating the issue are questions about the vessel’s registration and ownership. The Rich Starry is reportedly sailing under a Malawi flag, although the African nation has stated it does not maintain a registry for oceangoing ships. Ownership traces back to entities linked to Shanghai-based firms already under US sanctions, highlighting the complex networks involved in global oil transport and sanction evasion amid escalating geopolitical tensions.

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