Bostjan Koler was appointed as a new supervisory board head, Barbara Kurner Cad as his deputy representing the shareholders and Drago Kijevcanin as a representative of the company employees, Telekom Slovenije said in a statement on Wednesday.
Last month, the previous supervisory board president Ales Sabeder and two other board members resigned over disagreements about the supervisory body's policy.
"Because of the current situation, disagreements and different perspectives on the role of the Supervisory Board of Telekom Slovenije, I can no longer perform my duties with sufficient measure of due diligence befitting a supervisor," Sabeder, who took over the post of Telekom Slovenije's supervisory board president in June, said at the time.
Telekom Slovenije's shares closed 1.86% higher at 43.80 euro ($51.79) on the Ljubljana bourse on Thursday.
($=0.845679 euro)