MEXICO CITY–(BUSINESS WIRE)–A.M. Best has affirmed the Financial Strength Rating of A+ (Superior), the Long-Term Issuer Credit Rating of “aa-”, and the Mexico National Scale Rating of “aaa.MX” of Sompo Seguros Mexico, S.A. de C.V. (Sompo Mexico) (Mexico City, Mexico). The outlook of these Credit Ratings (ratings) is stable. The ratings reflect Sompo Mexico’s balance sheet strength, which A.M. Best categorizes as strongest, as well as its strong operating performance, favorable business profil