CHRYSTAL SKY

IMO 9334569

⭐ Vessel Spotlight — 2026-07-12 ✓ Not Sanctioned
Rank: #4 of 3,049 STS detections: 0 Loiter: 265 AIS gap events: 9 Zone dwell: 469 90-day AIS-derived behavioral indicators

CHRYSTAL SKY was selected as Vessel Spotlight due to its ranking of #4 among 3,049 monitored vessels, with key metrics over the past 90 days including 0 STS proximity events, 9 AIS gaps, 265 loitering events, and 469 zone dwell events. The vessel was detected in the vicinity of the Primorsk Approach Waters terminal zone but no direct terminal visits were recorded during this period. The top operating zones included Baltic Exit/Tallinn Approach, Danish Straits/Skagerrak, and Bosphorus/Dardanelles Approach. These observations are based on AIS-derived behavioral indicators.

Vessel information

Vessel Name CHRYSTAL SKY
IMO Number 9334569
MMSI 538004215
Vessel Type Tanker
Flag 🇲🇭 Marshall Islands
Call Sign V7VU5
Length 228 m
Beam 32 m
Gross Tonnage 40,865 GT
Build Year 2008

Movement & AIS Track

The vessel CHRYSTAL SKY was detected in the Baltic Exit/Tallinn Approach zone most frequently, with 340 events recorded, including 180 zone dwell and 160 loiter events. It was also detected in the Danish Straits/Skagerrak zone with 186 events, comprising 110 zone dwell and 76 loiter events. The vessel was detected in the vicinity of the Primorsk Approach Waters (16 events), though no direct terminal visits were recorded during this period.

ZoneEventsTypesFirst SeenLast Seen
Baltic Exit/Tallinn Approach 340 zone_dwell: 180, loiter: 160 Feb 2, 2026 Jul 7, 2026
Danish Straits/Skagerrak 186 zone_dwell: 110, loiter: 76 Jan 31, 2026 Apr 24, 2026
Bosphorus/Dardanelles Approach 104 zone_dwell: 68, loiter: 34, ais_gap: 2 Mar 3, 2026 Jun 13, 2026
Primorsk Approach Waters 16 zone_dwell: 8, loiter: 8 Mar 24, 2026 Mar 24, 2026
Central Mediterranean Sanctions Monitoring Zone 15 zone_dwell: 15 Jan 25, 2026 Jun 17, 2026
Archipelago Sea Sanction Zone 12 zone_dwell: 12 Feb 2, 2026 Apr 26, 2026
Crimean Peninsula Surveillance Zone 12 zone_dwell: 12 Feb 22, 2026 Apr 24, 2026
English Channel Surveillance Zone 12 zone_dwell: 11, ais_gap: 1 Feb 16, 2026 Apr 19, 2026
Atlantic Midway Monitoring Zone 11 zone_dwell: 11 Jan 25, 2026 Jun 18, 2026
Dodecanese Sea Monitoring Zone 10 zone_dwell: 10 Jan 30, 2026 Apr 19, 2026
Central Atlantic Monitoring Zone 10 zone_dwell: 9, ais_gap: 1 Jan 25, 2026 Mar 21, 2026
discovered_011 9 zone_dwell: 9 Jun 19, 2026 Jun 20, 2026
Brittany Channel Monitoring Zone 9 zone_dwell: 9 Feb 14, 2026 Apr 26, 2026
Central Atlantic Monitoring Zone 8 zone_dwell: 7, ais_gap: 1 Jan 31, 2026 Jun 20, 2026
discovered_048 8 zone_dwell: 8 Feb 22, 2026 Mar 16, 2026

Recent Port Calls

FromToDepartureArrival
YALOVA YALOVA 13/06/2026 09:44 IN PROGRESS
CANAKKALE ISTANBUL 06/05/2026 09:31 07/05/2026 01:56
SKAGEN CANAKKALE 24/04/2026 11:01 06/05/2026 07:01
UST-LUGA SKAGEN 15/04/2026 16:17 21/04/2026 07:05

Ownership & Management

Registered Owner
CHRYSTAL SKY MARITIME LTD
C/O: Executive Ship Management DMCC Unit 3901, JBC4, Plot JLT-PH1-N3A, Jumeirah Lakes Towers, Dubai, United Arab Emirates.
ISM Manager
EXECUTIVE SHIP MANAGEMENT DMCC
Unit 3901, JBC4, Plot JLT-PH1-N3A, Jumeirah Lakes Towers, Dubai, United Arab Emirates.
Ship Manager
EXECUTIVE SHIP MANAGEMENT DMCC
Unit 3901, JBC4, Plot JLT-PH1-N3A, Jumeirah Lakes Towers, Dubai, United Arab Emirates.
Commercial Manager
EXECUTIVE SHIP MANAGEMENT DMCC
Unit 3901, JBC4, Plot JLT-PH1-N3A, Jumeirah Lakes Towers, Dubai, United Arab Emirates.
🏢
CHRYSTAL SKY MARITIME LTD

CHRYSTAL SKY MARITIME LTD is a Dubai-based ship owner and manager operating a single oil products tanker, the CHRYSTAL SKY (IMO 9334569), under the Marshall Islands flag. The company is registered via Executive Ship Management DMCC in Jumeirah Lakes Towers and manages a fleet of 1 vessel with a total deadweight of 73,956 tonnes[1][6].

Fleet1 vessel(s)
SanctionsListed as part of Russia's 'Shadow Fleet' for crude oil and petroleum products exports; the vessel CHRYSTAL SKY is associated with shipping Russian oil to Ust-Luga, Russia, and the company is flagged in war-sanctions monitoring databases[4][5][7].

⚠ Red Flags

  • Company listed in Russia's Shadow Fleet for oil exports
  • Vessel en route to Ust-Luga, Russia, a known sanctions-sensitive port
  • Registered address is a shared corporate services unit used by many maritime entities
  • No publicly disclosed beneficial ownership or parent company structure
  • Fleet consists of a single aging tanker (built 2008, 17+ years old)
🏢
EXECUTIVE SHIP MANAGEMENT DMCC

EXECUTIVE SHIP MANAGEMENT DMCC is a Dubai-based ship owner and manager specializing in tanker and gas carrier vessels, operating a fleet of 8–9 vessels with a total deadweight tonnage of approximately 1.6 million metric tons. The company serves as both ISM and commercial manager for its fleet, which is primarily composed of tankers (87.5%) and gas carriers (12.5%).

Fleet9 vessel(s)

Name, Flag & Ownership History

Name Changes (4)
  • Nov 1, 2022
    CHRYSTAL SKY
  • Apr 1, 2015
    Polar Unicorn
  • Jun 1, 2010
    STI Heritage
  • Jan 1, 2008
    Sanko Heritage
Flag Changes (2)
  • Mar 1, 2011
    🇲🇭 Marshall Islands
  • Jan 1, 2008
    🇱🇷 Liberia
DateCompanyRole
Aug 12, 2025EXECUTIVE SHIP MANAGEMENT DMCCISM Manager
Aug 12, 2025EXECUTIVE SHIP MANAGEMENT DMCCShip manager/Commercial manager
Nov 30, 2022EXECUTIVE SHIP MANAGEMENTISM Manager
Nov 25, 2022EXECUTIVE SHIP MANAGEMENTShip manager/Commercial manager
Nov 25, 2022CHRYSTAL SKY MARITIME LTDRegistered owner
Nov 25, 2022UNKNOWNISM Manager
Jan 20, 2022POLAR UNICORN NAVIGATION LLCRegistered owner
Apr 7, 2015PRIME TANKER MANAGEMENT INCShip manager/Commercial manager
Apr 7, 2015POLAR UNICORN SHIPPING LLCRegistered owner
Apr 7, 2015PRIME TANKER MANAGEMENT INCISM Manager
Mar 28, 2011SCORPIO SHIP MANAGEMENT SAMISM Manager
Jun 7, 2010SCORPIO COMMERCIAL MANAGEMENTShip manager/Commercial manager
Nov 25, 2009COLUMBIA SHIPMANAGEMENT-GEUISM Manager
Jan 8, 2008COLUMBIA SHIPMANAGEMENT-GEUShip manager/Commercial manager
Jan 3, 2007COLUMBIA SHIPMANAGEMENT-GEUISM Manager

Media Mentions

Classification & Safety

American Bureau of Shipping (IACS) Delivered
36
Total Inspections
0
Detentions

Disclaimer

This vessel profile is compiled from publicly available information sources including maritime databases, government sanctions lists, and AIS position data. Information may be incomplete, delayed, or contain inaccuracies.

This content is for informational purposes only and does not constitute legal, financial, or compliance advice. FleetLeaks makes no warranties regarding the accuracy or completeness of the information presented. Users should independently verify all information before making decisions.

Data Scope & Currency
This dossier reflects automated analysis of publicly available data sources as of July 12, 2026 (UTC). FleetLeaks does not assert intent or wrongdoing. Observations are derived from AIS behavioral signals, registry records, and other open sources, each subject to inherent latency and reporting limitations.

Data Refresh
This dossier can be re-generated using the same automated pipeline with the most current available data. A refresh re-executes the standard selection, enrichment, and analysis process and does not alter methodology or thresholds. To request a refreshed version of this dossier, please contact us. A nominal fee may apply to cover compute and data access costs.

Generated: 2026-07-12T10:01:36.075067Z