Chon Ma San

🇰🇵 North Korea · IMO 8660313

Commercial Vessel

Sanctions screening of Chon Ma San (IMO 8660313) as of 2026-10-04: RED. 4 confirmed matches on vessel identifier. Source record: OFAC SDN, SDN entry #23729, program DPRK4. Sanctions lists update daily; verify the current designation before acting. Check the current status for IMO 8660313 at https://arcnautical.com/check/8660313.

Chon Ma San is a North Korea-flagged vessel with 4 confirmed sanctions matches (OFAC SDN + OpenSanctions + EU Consolidated) · ownership opacity 100/100.

Key verifiable facts

OFAC SDN designation SDN entry #23729 — program DPRK4 Source: OFAC SDN List · as of 2026-10-04 OFAC's structured SDN feed carries no per-entity URL; verify the entry via OFAC's sanctions search.
Flag-state PSC performance North Korea flag — Paris MoU Black List (99% 3-yr detention); Tokyo MoU Black List (99%) Source: Paris MoU WGB 2021–2023 + Tokyo MoU 2023 lists · reconciled as of 2026-05-30
Sanctions screening RED — 4 confirmed matches on vessel identifier. Source: ArcNautical sanctions screening · as of 2026-10-04

How ArcNautical sources & scores these →

IMO Number

8660313

Flag State

🇰🇵 North Korea

Vessel Type

Commercial Vessel

Sanctions Programs

Swiss SECO, OFAC SDN

Sanctions Screening Detail

Source list	Programs	Match type	Confidence
OFAC SDN	DPRK4	Exact IMO	100%
OpenSanctions	us_trade_csl, mc_fund_freezes, au_dfat_sanctions, us_ofac_sdn, eu_journal_sanctions, un_1718_vessels, fr_tresor_gels_avoir, eu_sanctions_map, ch_seco_sanctions, gb_fcdo_sanctions	Exact IMO	100%
EU Consolidated	eu_sanctions_map, eu_journal_sanctions	Exact IMO	100%
UK HMT/OFSI	Asset freeze, Prohibition of port entry	Exact IMO	100%
OpenSanctions	tw_shtc	Name fuzzy	91%

Corporate Ownership & Opacity

100/100 High opacity

Registered entity

Not in GLEIF registry

LEI registration is voluntary for non-financial maritime entities; absence is itself a signal.

+35 No GLEIF/LEI record (LEI registration voluntary for non-financial maritime entities)
+25 Flag jurisdiction KP — Tier 3 — Opaque
+10 No public beneficial-ownership record on a flag-of-convenience register
+30 OFAC-designated entity in ownership chain (chain-sanctions floor applied)

Live Sanctions Screening

Sanctions

RED

4 confirmed matches on vessel identifier.

Ownership Opacity

100

HIGH OPACITY

0 = transparent · 100 = opaque

Vetting Grade

Score: 90/100

unacceptable

Weekly snapshot · as of 2026-10-04

As of 2026-10-04

Request the reviewed intelligence dossier

Ownership chain details, sanctions match evidence, PSC detention records, and PDF report after manual review for Chon Ma San.

Frequently Asked Questions

Is Chon Ma San (IMO 8660313) sanctioned?

Chon Ma San appears in the following sanctions-related databases: Swiss SECO, OFAC SDN. Use the live screening tool above for the most current status, as sanctions lists are updated frequently.

What is IMO number 8660313?

IMO 8660313 is the International Maritime Organization identification number permanently assigned to Chon Ma San. 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.

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