Global Economy — 2026-07-08

Korean Shipping Tycoon Sinokor Makes Millions Running Dark Supertanker Shuttles Through Hormuz During Iran War

BLUFSinokor's adoption of sanctions-fleet tradecraft for a mainstream Gulf producer erodes Washington's ability to police dark shipping without penalizing operators embedded in legitimate global trade networks.

Bloomberg reporting, republished by Fortune, gCaptain and the Japan Times, identifies Korean shipping magnate Ga-Hyun Chung's Sinokor Group as the principal lessor of supertankers running "dark" shuttle transits of crude out of the Strait of Hormuz for Abu Dhabi National Oil Co. since mid-April 1. Sinokor, which came to control roughly 150 very large crude carriers by late February, about 40% of the global fleet not sanctioned or tied to long-term leases, after a buying spree backed by new co-owner MSC Group, dispatches tankers that load at UAE ports Zirku and Das Island, transit roughly two days through the Gulf and Strait of Hormuz with transponders off, and transfer cargo to waiting tankers in the Gulf of Oman before returning for more 1. Ship-tracking data from Vortexa show Sinokor-controlled vessels carrying nearly half of Emirati crude shipments by June, with at least four of the company's tankers appearing on the Equasis maritime database as managed by Adnoc 1. Combined Kpler and Vortexa loading data put Sinokor's average volumes at roughly 680,000 barrels a day from April, rising to 1.4 million barrels a day in June across at least 10 vessels making the transponder-dark run, with shipbrokers cited by Bloomberg estimating three of the tankers running shuttles since mid-April could have earned the company between $60 million and $120 million. Sinokor did not respond to requests for comment, and Adnoc L&S said it does not discuss vessel positioning or routing 1.

Analysis
Chung's near-monopoly on Adnoc's transponder-dark shuttle runs, blackouts, ship-to-ship transfers, convoy transits, at commercial scale, shows a private tanker owner running sanctions-evasion tradecraft for a Gulf state producer rather than a sanctioned one. That leverage over VLCC rates persists independent of the ceasefire as owners return ships to the Gulf, and it blurs the line between wartime logistics support and the illicit fleet practices Washington has sanctioned for years, complicating any future push to police dark shipping without also targeting a mainstream operator tied to MSC. Sinokor's dominance may instead reflect available VLCC capacity rather than a deliberate arrangement with Adnoc, since Adnoc also chartered from Navig8 and other owners over the same period, and the reporting rests on a single Bloomberg investigation republished rather than corroborated elsewhere.

4 sources

The supertanker tycoon making millions on Hormuz shuttle runs - Fortune
The Tanker Tycoon Making Millions on Hormuz Shuttle Runs - Bloomberg
The Tanker Tycoon Making Millions on Hormuz Shuttle Runs - gCaptain
The supertanker tycoon making millions on Hormuz 'shuttle runs' - The Japan Times