LJUBLJANA (Slovenia), October 19 (SeeNews) â US-headquartered credit rating agency AM Best affirmed the financial strength rating of both Slovenian insurer Zavarovalnica Triglav [LJE:ZVTG] and its subsidiary, Pozavarovalnica Triglav Re, at 'A' (excellent) and their long-term issuer ratings at 'a', Triglav said on Monday.