Latest Sanctions Update
On 21 August 2025, the U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC) announced the addition of 13 foreign entities and 8 vessels to the Specially Designated Nationals (SDN) List, citing their involvement in facilitating Iran's crude oil exports and sales. Among them were six Chinese companies and four associated vessels. Designation under the SDN list subjects entities and vessels to strict measures:
- U.S. persons and companies are prohibited from engaging in any transactions with them.
- Any assets under U.S. jurisdiction are frozen.
- Non-U.S. entities conducting business with these designees risk exposure to secondary sanctions.
Table 1: The list of newly sanctioned vessels on the SDN (added on August 21st)
Core Characteristics of Sanctioned Vessels
Based on Elane's maritime big data analysis, three defining features emerged from this round of sanctioned vessels:
1.Concentration in Tanker Segment: All 8 vessels sanctioned are oil/chemical tankers, with 6 frequently calling at Chinese ports.
2.Retrospective Timeframe: The vessels' links to Iranian waters (Persian Gulf, Gulf of Oman) primarily trace back to more than a year ago, indicating OFAC's investigative scope spans an extended retrospective period.
3."Associated Sanctions"Dynamics: Elane's data shows these vessels frequently operated along the Singapore–China trade route, with Singapore's anchorage areas being global hotspots for ship-to-ship (STS) transfers. OFAC highlighted that the sanctioned vessels had previously conducted transfers with ships already on the SDN list — a hallmark of associated sanctions enforcement.
Table 2: The Core Characteristics of the 8 Sanctioned Vessels in This Round
