SINGAPORE–(BUSINESS WIRE)–AM Best has removed from under review with developing implications and affirmed the Financial Strength Rating of A+ (Superior) and the Long-Term Issuer Credit Rating of “aa-” of Sovereign Assurance Company Limited (Sovereign) (New Zealand). The outlook assigned to these Credit Ratings (ratings) is stable. The latest rating actions follow the conclusion of AM Best’s full assessment of the impact of Sovereign’s change in ownership. The ratings were previously placed un