REUTERS NJSC Naftogaz of Ukraine is increasing the price of gas to be bought by industrial consumers on prepaid terms by 5.5% in May 2018 compared to April 2018, to UAH 9,143 (US$349.26) from UAH 8,670 per 1,000 cubic meters (with VAT). The ceiling price for other buyers will grow by 5.2% to UAH 10,042 (US$383.61) from UAH 9,544 per 1,000 cubic meters (with VAT) from next month, Naftogaz said in a statement. Read alsoNaftogaz on Gazprom&#39;s new claim: They still owe us US$2.56 bln plus interest The prices are differentiated depending on the volume of purchase, terms of payment and payment records. If a buyer has no debts to Naftogaz or is to purchase at least 50,000 cubic meters of gas per month, then the minimum price will be applicable. The ceiling price is set for all other cases. The previous increase in gas prices was in April 2018 from March 2018: prices grew by 9.8-10%.