South Korean fuel shipments to Russia via sanctioned tankers raise sanctions concerns
More than 176,000 tonnes of fuel, mostly diesel, were shipped from several South Korean ports to Russian ports in July and August, according to port records and ship-tracking data. The cargoes were carried on seven tankers that made 14 voyages to Russia's far east. The findings point to a trade route that could complicate efforts to restrict supplies to Moscow during the war in Ukraine.
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Three of the vessels were under sanctions imposed by the United Kingdom and the European Union, and one cargo was transferred ship-to-ship in South Korean waters before continuing onward. That method can obscure the origin of a cargo and allow ships to avoid calling at port terminals. An analyst at the Centre for Research on Energy and Clean Air said it was "shocking" that EU-sanctioned tankers loaded fuel at South Korean ports and carried it to Russia.
The shipments matter because they come as Russia continues to seek fuel and other supplies for its wartime economy. They also place South Korea in a sensitive position, given its public support for Ukraine and its broader effort to balance ties with Western partners and with Moscow. South Korea has provided humanitarian aid and non-lethal military supplies to Ukraine, and in 2023 pledged $2.3bn in support, most of it in loans.
The reported trade does not appear to breach South Korean law, because Seoul's measures against Russia rely mainly on export controls covering goods such as industrial machinery, electronics and vehicles. Even so, the use of sanctioned tankers could make South Korea appear to be a weak point in wider Western pressure on Russia. That perception is sharpened by the fact that some of the vessels involved were already restricted by South Korea's allies.
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The row also reflects the wider strain created by the war on trade, shipping and diplomacy. South Korea has long tried to preserve room for dialogue with Russia while avoiding direct military support for Ukraine, and Moscow has signalled interest in restoring relations, including trade ties. The fuel shipments therefore sit at the intersection of sanctions enforcement, energy logistics and wartime diplomacy.
What remains unclear is who owned or sold the fuel, because South Korean port records do not show that information. It is also not clear whether the shipments will prompt any policy response from Seoul or from its partners. Further scrutiny is likely to focus on the vessels involved, the role of ship-to-ship transfers and whether the trade expands beyond July and August.
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