Chil Bo San (IMO 8711021) 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 8711021 at https://arcnautical.com/check/8711021.
Chil Bo San is a Panama-flagged vessel with ownership opacity 100/100.
Key verifiable facts
Flag-state PSC performancePanama flag — Paris MoU White List (5.9% 3-yr detention); Tokyo MoU White List (4.5%)Source: Paris MoU WGB 2021–2023 + Tokyo MoU 2023 lists · reconciled as of 2026-05-30
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 Chil Bo San 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
100/100High 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)
+25Flag jurisdiction PA — 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 Chil Bo San 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: Panama
White ListPA
Chil Bo San flies the Panama flag, which records a Paris MoU 3-year detention rate of 5.9% (White List) and a Tokyo MoU rate of 4.5% (White List). Worst-list placement: White List.
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
100
HIGH OPACITY
0 = transparent · 100 = opaque
Vetting Grade
C
Score: 58/100
marginal
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/8711021/check · API docs
Request the reviewed intelligence dossier
Ownership chain details, sanctions match evidence, PSC detention records, and PDF report after manual review for Chil Bo San.
Frequently Asked Questions
Is Chil Bo San (IMO 8711021) sanctioned?
Chil Bo San 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 8711021?
IMO 8711021 is the International Maritime Organization identification number permanently assigned to Chil Bo 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.