Dolphin

🇸🇹 Sao Tome and Principe · IMO 9052331

Tanker

Sanctions screening of Dolphin (IMO 9052331) as of 2026-10-11: RED. 2 confirmed matches on vessel identifier. Source record: OFAC SDN, SDN entry #40885, program IRAN-EO13846. Sanctions lists update daily; verify the current designation before acting. Check the current status for IMO 9052331 at https://arcnautical.com/check/9052331.

Dolphin is a Sao Tome and Principe-flagged vessel with 2 confirmed sanctions matches (OFAC SDN + OpenSanctions) · ownership opacity 100/100.

Key verifiable facts

OFAC SDN designation SDN entry #40885 — program IRAN-EO13846 Source: OFAC SDN List · as of 2026-10-11 OFAC's structured SDN feed carries no per-entity URL; verify the entry via OFAC's sanctions search.
Flag-state PSC performance Sao Tome and Principe flag — Tokyo MoU Black List (18.2%) Source: Paris MoU WGB 2021–2023 + Tokyo MoU 2023 lists · reconciled as of 2026-05-30
Sanctions screening RED — 2 confirmed matches on vessel identifier. Source: ArcNautical sanctions screening · as of 2026-10-11

How ArcNautical sources & scores these →

IMO Number

9052331

Flag State

🇸🇹 Sao Tome and Principe

Vessel Type

Tanker

Sanctions Programs

OFAC SDN

Sanctions Screening Detail

Source list	Programs	Match type	Confidence
OFAC SDN	IRAN-EO13846	Exact IMO	100%
OpenSanctions	us_trade_csl, us_ofac_sdn	Exact IMO	100%
OpenSanctions	ua_nsdc_sanctions, tw_shtc, us_ofac_sdn, us_trade_csl	Name fuzzy	89%

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 ST — 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

2 confirmed matches on vessel identifier.

Ownership Opacity

100

HIGH OPACITY

0 = transparent · 100 = opaque

Vetting Grade

Score: 92/100

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/9052331/check · API docs

Request the reviewed intelligence dossier

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

Frequently Asked Questions

Is Dolphin (IMO 9052331) sanctioned?

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

What is IMO number 9052331?

IMO 9052331 is the International Maritime Organization identification number permanently assigned to Dolphin. 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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