September 20 (SeeNews) - US-headquartered credit rating agency AM Best re-affirmed the Financial Strength Rating of 'A' (Excellent) and the Long-Term Issuer Credit Ratings of 'a' (Excellent) of Slovenian insurer Zavarovalnica Triglav [LJE:ZVTG] and its subsidiary, Pozavarovalnica Triglav Re, Triglav said.