A.M. Best Rating Services, Inc.: AM Best Upgrades Issuer Credit Rating of Berkley International Compañía de Garantías México S.A. de C.V.
AM Best has upgraded the Long-Term Issuer Credit Rating (Long-Term ICR) to "aa" (Superior) from "aa-" (Superior), affirmed the Financial Strength Rating (FSR) of A+ (Superior), and affirmed the Mexico