GUANYIN

The tanker is affiliated with Silver Tetra Marine Co. (Marshall Islands), which was sanctioned by the United States in July 2025 for providing financial, material, or technological support, as well as goods or services, to the sanctioned Mohammad Hossein Shamkhani – the son of Ali Shamkhani, the chief political advisor to Iran’s Supreme Leader.
Mohammad Hossein Shamkhani leverages his father’s political influence to corrupt senior Iranian regime officials to build and operate a vast fleet of tankers and container ships. This fleet transports oil and petroleum products from Iran and russia, as well as other cargoes, to customers around the world, generating tens of billions of dollars in profits. His shipping empire consists of a large fleet of vessels, ship management firms, and front companies that launder billions of dollars in proceeds from global sales of Iranian and russian crude oil and petroleum products, primarily to buyers in China. The network takes significant steps to conceal its operations and obscure its connections to the Shamkhani family, Iran, and russia.
On July 30, 2025, the United States imposed sanctions on the tanker IMO 9299707.
The vessel is also affiliated, through the sanctioned company Sun Ship Management (UAE), with the sanctioned PJSC Sovcomflot (ПАО "Совкомфлот") – the largest state-owned shipping company in russia responsible for servicing and supporting offshore hydrocarbon production, as well as transporting russian oil, petroleum products, and liquefied gas. The primary charterers of Sovcomflot’s vessels are russia’s largest oil and gas companies and traders. Sovcomflot is involved in major russian oil and gas projects, including Sakhalin-1, Sakhalin-2, Varandey, Prirazlomnoye, Novy Port, and Yamal LNG, among others.
Since October 24, 2025, the EU has imposed sanctions on the vessel.
Since December 13, 2025, Switzerland has imposed sanctions on the vessel.
Since December 13, 2025, Ukraine has imposed sanctions on the vessel.
On February 24, 2026, the United Kingdom imposed sanctions on the vessel.
Since March 25, 2026, Canada has imposed sanctions on the vessel.