KIEV, Sept. 16 – Ukraine's Economic Development and Trade Ministry, by amending the regulations of state-owned Naftogaz Ukrayiny under a September 7 order, has put under threat the signing of a $500 million loan agreement between the holding and the World Bank.

"Changing the Naftogaz's regulations in the way as it happened last week is violation of OECD corporate management principles and liabilities taken by Ukraine. These events put under a threat the signing of the $500 million loan agreement between Naftogaz and the World Bank," the holding said.

Naftogaz recalled that the funds are required to buy gas for passing the 2016/17 heating season by Ukraine stably.