Ko Song 1 (IMO 8977900) was screened against the OFAC SDN, EU Consolidated, UN Security Council, UK HMT/OFSI, and OpenSanctions vessel lists and matched none of them as of 2026-10-11. Sanctions designations change daily; this reflects the 2026-10-11 snapshot. Check the current status for IMO 8977900 at https://arcnautical.com/check/8977900.
Ko Song 1 is a screened vessel with ownership opacity 40/100.
Key verifiable facts
Sanctions screeningGREEN — No matches across OFAC SDN, OpenSanctions, EU FSD, UN Consolidated, UK OFSI for this vessel's identifiers and current name. Prior names are not screened: a hull designated under a FORMER name, in a source record that carries no IMO, will not be matched here.Source: ArcNautical sanctions screening · as of 2026-10-11
No active sanctions matches were detected for Ko Song 1 across OFAC SDN, EU Consolidated, UN, UK HMT/OFSI, and OpenSanctions vessel lists at the time of last screening. Sanctions lists update daily — use the live screening widget below for the most current status.
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 not resolved — Unclassified
Recent Port Calls (AIS)
No AIS port-call data captured for Ko Song 1 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
The flag state for Ko Song 1 is not currently recorded in public sanctions databases. Flag state identification is a critical element of maritime due diligence, as it determines the regulatory framework governing the vessel's operations, the port state control inspection regime it faces, and the extent to which it may be subject to sanctions enforcement by various jurisdictions. ArcNautical's live screening tool checks the vessel against OFAC SDN, EU, and UN sanctions databases regardless of flag state availability.
Vessels with unknown or undisclosed flag states warrant additional scrutiny in compliance assessments. The absence of flag state data may indicate recent reflagging, administrative gaps in registry reporting, or deliberate obfuscation. ArcNautical's ownership opacity scoring evaluates corporate transparency through GLEIF registry data and beneficial ownership chain analysis, providing an additional layer of risk assessment independent of flag state information.
Live Sanctions Screening
Sanctions
GREEN
No matches across OFAC SDN, OpenSanctions, EU FSD, UN Consolidated, UK OFSI for this vessel's identifiers and current name. Prior names are not screened: a hull designated under a FORMER name, in a source record that carries no IMO, will not be matched here.
Ownership Opacity
40
MEDIUM OPACITY
0 = transparent · 100 = opaque
Vetting Grade
D
Score: 77/100
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/8977900/check · API docs
Request the reviewed intelligence dossier
Ownership chain details, sanctions match evidence, PSC detention records, and PDF report after manual review for Ko Song 1.
Frequently Asked Questions
Is Ko Song 1 (IMO 8977900) sanctioned?
Ko Song 1 appears in the following sanctions-related databases: RUSI DPRK Reports. Use the live screening tool above for the most current status, as sanctions lists are updated frequently.
What is IMO number 8977900?
IMO 8977900 is the International Maritime Organization identification number permanently assigned to Ko Song 1. 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.