MEXICO CITY, September 21, 2023--AM Best has affirmed the Financial Strength Rating of A+ (Superior), the Long-Term Issuer Credit Rating of "aa-" (Superior) and the Mexico National Scale Rating of "aaa.MX" (Exceptional) of Sompo Seguros Mexico, S.A. de C.V. (Sompo Mexico) (Mexico City, Mexico). The outlook of these Credit Ratings (ratings) is stable.