Sanctions screening of PRIMAVERA (IMO 9511533) as of 2026-10-11: RED. 4 confirmed matches on vessel identifier. Source record: OFAC SDN, SDN entry #51660, program RUSSIA-EO14024. Sanctions lists update daily; verify the current designation before acting. Check the current status for IMO 9511533 at https://arcnautical.com/check/9511533.
PRIMAVERA is a Oman-flagged vessel with 4 confirmed sanctions matches (OFAC SDN + OpenSanctions + EU Consolidated) · ownership opacity 50/100.
Key verifiable facts
OFAC SDN designationSDN entry #51660 — program RUSSIA-EO14024Source: OFAC SDN List · as of 2026-10-11OFAC's structured SDN feed carries no per-entity URL; verify the entry via OFAC's sanctions search.
Sanctions screeningRED — 4 confirmed matches on vessel identifier.Source: ArcNautical sanctions screening · as of 2026-10-11
LEI registration is voluntary for non-financial maritime entities; absence is itself a signal.
+15No GLEIF/LEI record (LEI registration voluntary for non-financial maritime entities)
+5Flag jurisdiction OM — Tier 2 — Restricted
+30OFAC-designated entity in ownership chain (chain-sanctions floor applied)
Recent Port Calls (AIS)
No AIS port-call data captured for PRIMAVERA 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: Oman
UnlistedOM
PRIMAVERA flies the Oman flag. Detention-rate data is not currently published for this registry.
Live Sanctions Screening
Sanctions
RED
4 confirmed matches on vessel identifier.
Ownership Opacity
50
MEDIUM OPACITY
0 = transparent · 100 = opaque
Vetting Grade
E
Score: 90/100
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/9511533/check · API docs
Request the reviewed intelligence dossier
Ownership chain details, sanctions match evidence, PSC detention records, and PDF report after manual review for PRIMAVERA.
Frequently Asked Questions
Is PRIMAVERA (IMO 9511533) sanctioned?
PRIMAVERA 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 9511533?
IMO 9511533 is the International Maritime Organization identification number permanently assigned to PRIMAVERA. 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.