UK imposes 70 new sanctions on Russian shadow fleet

While Serbian diplomacy weighs every move the major powers make on energy and sanctions, given that the fate of Serbia’s oil company NIS under Washington’s sanctions hangs on it, London on Monday delivered a package that shifts the geopolitical reality on Europe’s seas a step further. The British government unveiled 70 new sanctions aimed at Russia’s so-called shadow fleet, its military procurement networks and illicit financial flows, taking the total number of designated vessels past 600. The package landed while Prime Minister Keir Starmer is at the Group of Seven summit in Evian, where he is coordinating the next phase of pressure on Moscow with allies.

The shadow fleet is the term for hundreds of ageing tankers of murky ownership and insurance that Russia uses to skirt the Western price cap on oil and ship energy to buyers beyond the reach of sanctions. London argues that every new vessel added to the list cuts into the revenue flowing to the Kremlin’s war economy. The new package also targets vessels carrying banned Russian liquefied natural gas, along with the front company Neptun, which British authorities say acquired Western technology for Russia’s military intelligence service. Alongside it, three firms and ten GRU officers were designated.

Why does each new sanctions move matter for Belgrade?

The question is not rhetorical. Serbia is already measuring the fallout from the sanctions Washington imposed on its oil company over Russian ownership, and every new European or British package narrows the room to manoeuvre for anyone doing business with Russian energy. When London extends the list to front companies and financial intermediaries in third countries, with China, Thailand, Nigeria and Turkey among those named, the message is that the sanctions net no longer stops at Russia’s borders. For countries trying to keep an energy balance between East and West, the space for neutrality is growing thinner.

Britain has also shown it is ready for hard enforcement, not just lists. British forces seized a tanker in the English Channel that London says belongs to the Russian shadow fleet, and the vessel’s captain has been charged with breaching sanctions and is due in court. It is the first shadow fleet vessel British forces have stopped, a signal that the measure is moving from paper to the open sea.

What does the package mean for Ukraine?

Alongside the sanctions, London announced a move that directly strengthens Ukraine’s energy system. The British company Urenco will supply enriched uranium to Ukraine’s state nuclear producer, Energoatom, backed by 210 million pounds through an export finance mechanism. The arrangement runs for two years and, by British estimates, should help Ukraine reduce its dependence on Russian nuclear fuel.

Prime Minister Starmer said the new measures target the vessels, the money and the actors propping up Russia’s war economy and, with it, threatening European security. In doing so, London linked two levers of the same pressure: closing the channels Moscow uses to fund the war while strengthening the resilience of the country bearing it. The summit in Evian will show how far the other G7 members are willing to match Britain’s pace, or to insist on a rhythm of their own.

For a region that reads every signal from Brussels and London closely, one question stays open: how far will the net around Russia’s shadow fleet keep widening, and at what point will it reach intermediaries closer to home?