LJUBLJANA (Slovenia), December 3 (SeeNews) â Slovenian insurer Zavarovalnica Triglav [LJE:ZVTG] said on Monday A.M. Best credit rating agency has affirmed the financial strength rating of 'A' (Excellent) and the long-term issuer credit ratings of 'a' (Excellent) of both the holding company and its subsidiary Pozavarovalnica Triglav.