The Bulgarian energy ministry appointed Ivan Yonchev as chief of the state-owned Bulgarian Energy Holding (BEH) while tapping Dafinka Yankova to head gas monopoly Bulgargaz.
Yonchev replaces Boyan Boev, who stepped in as chairman of the country's State Energy and Water Regulatory Commission on Friday, bTV reported.
Yankova succeeds Shishman Chaushev who was appointed in November.