The circumvention leverages a gap in the EU's sanctions framework, which permits the entry of “blended” fuels as long as they are identified as non-Russian.
In the year following the EU’s ban on Russian oil imports in February 2023, Moscow allegedly earned up to €3 billion from exports via three Turkish ports alone, media outlet Politico reported.
The case underlines broader concerns over Russia’s ability to exploit EU regulatory gaps.
Last year, the NGO Global Witness presented evidence showing that Russia made a €1 billion profit from another EU sanctions loophole in Bulgaria.
The investigation comes at a time when tensions are escalating between Brussels and Ankara over Turkey's close ties with Russia.
Despite some minor steps taken by Turkey to align with U.S. sanctions, its engagement with Moscow continues to strain relations with the EU.