Sanctions screening of Koysug (IMO 8883252) as of 2026-10-11: AMBER. 1 listing matched on identifier in a non-designating source (a watchlist or advisory list, not an OFAC, EU, UK or UN designation); manual verification required. Check the current status for IMO 8883252 at https://arcnautical.com/check/8883252.
Koysug is a Russia-flagged vessel with 1 unconfirmed sanctions match (OpenSanctions, review required) · ownership opacity 40/100.
Key verifiable facts
Unconfirmed sanctions matchIMO match on OpenSanctions, program ua_war_sanctions — a watchlist or unconfirmed record, not a confirmed designationSource: OpenSanctions · as of 2026-10-11Needs review — manual verification against the primary list is required.
Flag-state PSC performanceRussia flag — Paris MoU Grey List (6% 3-yr detention); Tokyo MoU Grey List (5.1%)Source: Paris MoU WGB 2021–2023 + Tokyo MoU 2023 lists · reconciled as of 2026-05-30
Sanctions screeningAMBER — 1 listing matched on identifier in a non-designating source (a watchlist or advisory list, not an OFAC, EU, UK or UN designation); manual verification required.Source: ArcNautical sanctions screening · as of 2026-10-11
Koysug matched 1 sanctions record. 1 of these is an IMO or MMSI match in a watchlist or unconfirmed record, not a confirmed designation — review before applying compliance actions.
Source list
Programs
Match type
Confidence
OpenSanctions
ua_war_sanctions
Exact IMO
100%
Corporate Ownership & Opacity
40/100Medium opacity
Registered entity
Not in GLEIF registry
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)
+5Flag jurisdiction RU — Unclassified
Recent Port Calls (AIS)
No AIS port-call data captured for Koysug 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: Russia
Grey ListRU
Koysug flies the Russia flag, which records a Paris MoU 3-year detention rate of 6% (Grey List) and a Tokyo MoU rate of 5.1% (Grey List). Worst-list placement: Grey List.
Live Sanctions Screening
Sanctions
AMBER
1 listing matched on identifier in a non-designating source (a watchlist or advisory list, not an OFAC, EU, UK or UN designation); manual verification required.
Ownership Opacity
40
MEDIUM OPACITY
0 = transparent · 100 = opaque
Vetting Grade
D
Score: 61/100
substandard
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/8883252/check · API docs
Request the reviewed intelligence dossier
Ownership chain details, sanctions match evidence, PSC detention records, and PDF report after manual review for Koysug.
Frequently Asked Questions
Is Koysug (IMO 8883252) sanctioned?
Sanctions screening of Koysug (IMO 8883252) returned AMBER. 1 listing matched on identifier in a non-designating source (a watchlist or advisory list, not an OFAC, EU, UK or UN designation); manual verification required. Related programs: Ukraine War Sanctions. Use the live screening tool above for the most current status.
What is IMO number 8883252?
IMO 8883252 is the International Maritime Organization identification number permanently assigned to Koysug. 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.