Fitch Ratings said on Friday that it confirmed DTEK’s long-term issuer default rating in foreign currency at ‘B’ with a negative outlook. Fitch also affirmed DTEK’s short-term foreign currency IDR at ‘B’, long-term local currency IDR at ‘B+’, short-term local currency IDR at ‘B’, national scale rating at ‘AA+(ukr)’, and national long-term senior unsecured rating at ‘AA+(ukr)’.