MEXICO CITY–(BUSINESS WIRE)– #insurance–AM Best has placed under review with developing implications the Financial Strength Rating of A- (Excellent) and the Long-Term Issuer Credit Ratings (Long-Term ICR) of “a-” (Excellent) of Austral Resseguradora S.A. and Austral Seguradora S.A. (Austral Seg). Concurrently, AM Best has placed under review with developing implications the Long-Term ICR of “bbb-” (Good) of Austral Participações S.A. All companies are domiciled in Brazil and collectively referred to as A