LONDON--(BUSINESS WIRE)--A.M. Best has affirmed the financial strength rating of A- (Excellent) and the issuer credit rating of “a-” of EC Insurance Company Limited (ECIC) (United Kingdom). The outlook for both ratings remains stable. The ratings reflect ECIC’s excellent risk-adjusted capitalisation, strong operating performance and established specialist business profile. Risk-adjusted capitalisation remains at an excellent level, despite the further strengthening of asbestos loss reserves, su