KIEV, Jan. 29 – The percentage by which the tariff for natural gas for households will be increased is the key stumbling point in negotiations between the Ukrainian government and the International Monetary Fund on a new financing program, according to Viktor Kryvenko deputy head of the parliamentary budget committee and a member of the Samopomich faction.

"We should increase tariffs by no more than 25% and it is proposed to increase them by seven times," he said at a meeting of heads of committees with journalists organized by Kiev International Economic Forum in Kiev on Thursday.

Kryvenko said that Ukrainian-produced gas is enough to satisfy needs of households in Ukraine, while its production efficiency is positive.