AM Best Affirms Credit Ratings of Tokio Marine & Nichido Fire Insurance Co., Ltd. and Its Subsidiaries
AM Best has affirmed the Financial Strength Rating (FSR) of A++ (Superior) and the Long-Term Issuer Credit Ratings (Long-Term ICRs) of “aa+” (Superior) of
The ratings reflect TMNF’s balance sheet strength, which AM Best assesses as strongest, as well as its strong operating performance, very favourable business profile and very strong enterprise risk management (ERM).
TMNF’s balance sheet strength is supported by risk-adjusted capitalisation at the strongest level, as measured by Best’s Capital Adequacy Ratio (BCAR). The company maintains highly conservative financial leverage and strong financial flexibility. While exposed to sizeable equity risk and growing underwriting risks from overseas expansion, it retains substantial capital to absorb potential volatility. The organisation has accelerated its strategic equity disposal programme, targeting full disposal by fiscal-year 2029, which is expected to materially reduce its overall equity risk exposure over the medium term.
TMNF has a track record of consistent premium growth, with net premiums written (NPW) rising to
TMNF continues to maintain a diversified business profile with operations spanning across different markets and global lines of business, with domestic and overseas businesses contributing approximately 50% of its NPW. In
The company maintains a sophisticated ERM framework that is embedded throughout its organisation. AM Best believes that TMNF’s risk management capabilities align closely with its highly complex and diverse risk exposures.
Negative rating actions could occur if there is material deterioration in risk-adjusted capitalisation, such as substantial investment losses caused by capital market volatility or large-scale natural catastrophes. Negative rating actions could occur if there is persistent and significant deterioration in TMNF’s operating performance stemming from weak underwriting and investment results. Negative rating actions also could occur if there is significant deterioration in Tokio Marine Holdings, Inc.’s credit profile, including its risk-adjusted capitalisation, financial leverage or interest coverage levels.
Positive rating actions could occur if TMNF demonstrates exceptionally strong and consistent operating performance metrics. However, the likelihood of such actions occurring remains limited at present.
The FSR of A++ (Superior) and the Long-Term ICRs of “aa+” (Superior), have been affirmed with stable outlooks for the following subsidiaries of
-
Tokio Marine America Insurance Company -
Trans Pacific Insurance Company -
TM Specialty Insurance Company -
TNUS Insurance Company
Ratings are communicated to rated entities prior to publication. Unless stated otherwise, the ratings were not amended subsequent to that communication.
This press release relates to Credit Ratings that have been published on AM Best’s website. For all rating information relating to the release and pertinent disclosures, including details of the office responsible for issuing each of the individual ratings referenced in this release, please see AM Best’s Recent Rating Activity web page. For additional information regarding the use and limitations of Credit Rating opinions, please view Guide to Best’s Credit Ratings. For information on the proper use of Best’s Credit Ratings, Best’s Performance Assessments, Best’s Preliminary Credit Assessments and AM Best press releases, please view Guide to Proper Use of Best’s Ratings & Assessments.
AM Best is a global credit rating agency, news publisher and data analytics provider specialising in the insurance industry. Headquartered in
Copyright © 2025 by A.M. Best Rating Services, Inc. and/or its affiliates. ALL RIGHTS RESERVED.
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charles.chiang@ambest.com
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Source: AM Best


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