Sanctions screening of CHIOS (IMO 9231509) as of 2026-10-11: RED. 3 confirmed matches on vessel identifier. Source record: EU Consolidated, program eu_journal_sanctions. Sanctions lists update daily; verify the current designation before acting. Check the current status for IMO 9231509 at https://arcnautical.com/check/9231509.
CHIOS is a Cameroon-flagged vessel with 3 confirmed sanctions matches (OpenSanctions + EU Consolidated + UK HMT/OFSI) · ownership opacity 100/100.
Key verifiable facts
Sanctions listingListed on EU Consolidated, program eu_journal_sanctionsSource: EU Consolidated · as of 2026-10-11
Flag-state PSC performanceCameroon flag — Paris MoU Black List (31.9% 3-yr detention); Tokyo MoU Black List (23.9%)Source: Paris MoU WGB 2021–2023 + Tokyo MoU 2023 lists · reconciled as of 2026-05-30
Sanctions screeningRED — 3 confirmed matches on vessel identifier.Source: ArcNautical sanctions screening · as of 2026-10-11
LEI registration is voluntary for non-financial maritime entities; absence is itself a signal.
+35No GLEIF/LEI record (LEI registration voluntary for non-financial maritime entities)
+25Flag jurisdiction CM — Tier 3 — Opaque
+10No public beneficial-ownership record on a flag-of-convenience register
+30Ownership-chain entity name-matched on a sanctions list or state watchlist (chain-sanctions floor applied)
Recent Port Calls (AIS)
No AIS port-call data captured for CHIOS in the last 180 days. Sanctioned vessels frequently transmit AIS irregularly or disable transponders entirely — this absence is itself a vetting signal documented in the OFAC, EU, and IMO sanctions evasion advisories.
Flag State Risk Analysis: Cameroon
Black ListCM
CHIOS flies the Cameroon flag, which records a Paris MoU 3-year detention rate of 31.9% (Black List) and a Tokyo MoU rate of 23.9% (Black List). Worst-list placement: Black List.
Across the last 24 months, the Abuja MoU dataset logged 210 distinct vessel detentions (as of 2026-10-04), sourced from OpenSanctions abuja_mou_detention.
Live Sanctions Screening
Sanctions
RED
3 confirmed matches on vessel identifier.
Ownership Opacity
100
HIGH OPACITY
0 = transparent · 100 = opaque
Vetting Grade
E
Score: 90/100
unacceptable
Weekly snapshot · as of 2026-10-11
As of 2026-10-11
Same check from code, no key: curl https://arcnautical.com/api/v1/vessels/9231509/check · API docs
Request the reviewed intelligence dossier
Ownership chain details, sanctions match evidence, PSC detention records, and PDF report after manual review for CHIOS.
Frequently Asked Questions
Is CHIOS (IMO 9231509) sanctioned?
CHIOS appears in the following sanctions-related databases: Ukraine War Sanctions. Use the live screening tool above for the most current status, as sanctions lists are updated frequently.
What is IMO number 9231509?
IMO 9231509 is the International Maritime Organization identification number permanently assigned to CHIOS. IMO numbers are unique 7-digit identifiers that remain with a vessel throughout its lifetime, regardless of changes in name, flag, or ownership. They are the primary identifier used in sanctions screening, port state control, and maritime compliance.
How is the vessel vetting grade calculated?
ArcNautical's vetting grade (A through E) is a composite score based on five weighted factors: PSC detention history (30%), flag state performance (25%), ownership transparency (20%), vessel age (15%), and inspection recency (10%). Data is sourced from Paris MOU, Tokyo MOU, GLEIF corporate registry, and OFAC/EU/UN sanctions databases.