The Naftogaz Group has finally won a $1.4 billion lawsuit against Russia's Gazprom, Naftogaz Ukrainy CEO Serhiy Koretsky announced on his Facebook page on Friday.

"The Swiss Federal Supreme Court has completely rejected Gazprom's complaint and upheld the June 2025 arbitration ruling, which obliges the Russians to pay Naftogaz over $1.4 billion in back payments for gas transportation services, plus interest and legal costs," he wrote.

Naftogaz is currently working to enforce debt collection from Russians. Simultaneously, a number of other lawsuits against the aggressor country are ongoing to recover damages.

"Thank you to the Naftogaz Group legal team and our international legal advisors for their coordinated work and the results," Koretsky added.