Iran's Hormuz blacklist nearly doubles to 240 ships; Sinokor at risk

Market Context & Direct Impact

Iran's Persian Gulf Strait Authority (PGSA) almost doubled its Hormuz non-compliance list in a single update. According to Seatrade Maritime, the authority added 114 vessels on 2 November, which pushed the list to 240 ships. The same report says the authority told Seatrade that every Sinokor ship will be handled like the listed vessels. At least 46 Sinokor-linked ships now sit on the list, roughly half of the South Korean VLCC owner's fleet.

The list now reaches ships that were never hit, so a screen built on attack data will miss vessels. Attacked vessels made up 7.8% of the new entries on 2 November, against 90% of those added on 15 October, per Seatrade Maritime. That share pattern suggests the list is widening beyond a record of attacks, though the source does not state a policy change. JMIC kept its Hormuz threat level at SEVERE in mid-October and warned that ships broadcasting their positions over AIS face an elevated targeting risk. JMIC also counted about 490 vessels waiting outside the strait as of 1 November, per gCaptain.

Core Executive Takeaways

• Blacklist moves fastOne update lifted the PGSA list to 240 ships, so any screen built on an older count is already out of date.
• Owner exposure concentratesAt least 46 Sinokor-linked ships are listed, so charter books tied to that owner need a separate check.
• Attacks don't predict listingMost new entries were not attacked, which suggests the list cannot stand in for attack risk on a route.

Strategic Playbook

1. 1
   Screen every Hormuz booking

   Match each vessel's name and IMO number against PGSA's current non-compliance list before confirming a Gulf or Hormuz booking, and re-run the check each time the list updates.

2. 2
   Write approval clauses

   Require charterers and carriers to confirm PGSA approval status for each transit, price any rerouting in advance, and set a trigger for moving cargo to an alternative gateway.

Filed 15:26 GMT, 4 November 2026, for the second edition of 4 Nov.
As agents only.

Sources

1. Iran doubles Hormuz blacklist with Sinokor, KOTC fleets targetedSeatrade Maritime, published 2 November 2026
2. New Wave of Attacks Hits Tankers and LNG Carrier in Strait of Hormuz and Persian GulfgCaptain, published 2 November 2026
3. U.S. Claims Control of Hormuz as Ship Attacks Hit New HighgCaptain, published 15 October 2026

Claims ledger: 8 facts and where each comes from

• PGSA added 114 vessels to its non-compliance list on 2 November, almost doubling the size of its blacklist in one update.¹
• PGSA's non-compliance list almost doubles in size to 240 ships.¹
• PGSA confirmed to Seatrade Maritime News that Sinokor's entire fleet would be treated similarly to listed ships.¹
• The blacklist now contains at least 46 Sinokor-linked vessels, around half of the South Korean VLCC owner's fleet.¹
• Attacked vessels account for 7.8% of the new entries on the list, compared to 90% of those added on 15 October.¹
• According to JMIC, approximately 490 vessels were waiting outside the Strait of Hormuz as of November 1.²
• JMIC maintained its threat assessment for the Strait of Hormuz at SEVERE.³
• Vessels broadcasting their positions through AIS face an elevated targeting risk, according to JMIC.³

Every figure above is tied to a cited source that was checked on the day of filing. Found an error? Tell the desk.