-

AM Best Affirms Credit Ratings of Marble Reinsurance Corporation

HONG KONG--(BUSINESS WIRE)--AM Best has affirmed the Financial Strength Rating of A- (Excellent) and the Long-Term Issuer Credit Rating of “a-” (Excellent) of Marble Reinsurance Corporation (Marble Re) (Micronesia). The outlook of these Credit Ratings (ratings) is stable.

The ratings reflect Marble Re’s balance sheet strength, which AM Best assesses as strong, as well as its strong operating performance, neutral business profile and appropriate enterprise risk management.

The balance sheet strength is well-supported by Marble Re’s risk-adjusted capitalisation, which is assessed at the strongest level, as measured by Best’s Capital Adequacy Ratio (BCAR). The company’s balance sheet strength also is supported by its favourable balance sheet liquidity with no outstanding debt. While the company has relatively high dependence on reinsurance, the risk is mitigated by its high quality and well-diversified reinsurance panel. Marble Re is a wholly owned subsidiary of Marubeni Corporation, one of Japan’s largest general trading companies.

Marble Re’s operating performance has been consistently strong with a five-year average combined ratio of 60% (2017-2021). The company recorded recoveries in both premium incomes and net profit from the COVID-19 pandemic during the fiscal year ended 31 March 2022. Its underwriting results remained strong and stable with a combined ratio below 60%. AM Best expects the company’s cargo business will continue to benefit from Marubeni Corporation’s trading business and higher commodity price in the near future, while its overall combined ratio remains favourable at approximately 60%.

Marble Re continues to benefit from Marubeni Corporation’s global business network, which allows it to maintain a well-diversified business portfolio. As a single-parent captive, Marble Re also is well-integrated within the group and benefits from the parent company’s overall risk management, corporate governance and internal control systems.

Negative rating actions could occur if there are substantial losses caused by a material shift in its risk appetite. Negative rating actions also could arise if there is significant deterioration in Marubeni Corporation’s credit profile, including its operating profitability, financial leverage and interest coverage levels.

AM Best remains the leading rating agency of alternative risk transfer entities, with more than 200 such vehicles rated throughout the world. For current Best’s Credit Ratings and independent data on the captive and alternative risk transfer insurance market, please visit www.ambest.com/captive.

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 the United States, the company does business in over 100 countries with regional offices in London, Amsterdam, Dubai, Hong Kong, Singapore and Mexico City. For more information, visit www.ambest.com.

Copyright © 2022 by A.M. Best Rating Services, Inc. and/or its affiliates. ALL RIGHTS RESERVED.

Contacts

Charles Chiang
Financial Analyst
+852 2827 3427
charles.chiang@ambest.com

Christopher Sharkey
Manager, Public Relations
+1 908 439 2200, ext. 5159
christopher.sharkey@ambest.com

Jason Shum
Associate Director, Analytics
+852 2827 3424
jason.shum@ambest.com

Al Slavin
Communications Specialist
+1 908 439 2200, ext. 5098
al.slavin@ambest.com

AM Best


Release Versions

Contacts

Charles Chiang
Financial Analyst
+852 2827 3427
charles.chiang@ambest.com

Christopher Sharkey
Manager, Public Relations
+1 908 439 2200, ext. 5159
christopher.sharkey@ambest.com

Jason Shum
Associate Director, Analytics
+852 2827 3424
jason.shum@ambest.com

Al Slavin
Communications Specialist
+1 908 439 2200, ext. 5098
al.slavin@ambest.com

More News From AM Best

AM Best to Host Briefing on How Non-Life Insurers Are Navigating Evolving Run-Off Market

OLDWICK, N.J.--(BUSINESS WIRE)--AM Best will host a briefing with insurance industry experts on the latest developments shaping the run-off market and how non-life insurers are responding on Wednesday, Jan. 14, 2026, at 11:00 a.m. EST. The briefing, titled, “AM Best’s Market Briefing – Non-Life Run-Off: An Evolving Market,” will touch on recent research insights, notable activity over the past year and expectations for 2026. Topics will include a broad look at how the market has been evolving,...

Best’s Special Report: Lower U.S. Property/Casualty Insurer Expenses Boost Segment’s Underwriting Results

OLDWICK, N.J.--(BUSINESS WIRE)--Despite competitive market conditions, macroeconomic trends and severe weather trends that have fueled volatility in the U.S. property/casualty (P/C) industry’s underwriting results for a decade, insurers still managed to improve their underwriting and operating results, according to a new AM Best report. These results were particularly evident in the segment’s underwriting expense ratio, which improved noticeably during the 2014-2024 timeframe. In 2024, the U.S....

AM Best to Present 2026 Outlooks, Key Market Trends at Cayman Islands Briefing

OLDWICK, N.J.--(BUSINESS WIRE)--AM Best will host a briefing with senior AM Best analytical staff as they present their outlooks on the global insurance market’s key segments, recent rating drivers, investment trends and issues impacting the Cayman market on Feb. 12, 2026, from 1:30–7:00 p.m. EST at the Grand Cayman Marriott Resort. Included in the program are presentations on the state of the delegated underwriting authority enterprises (DUAEs) segment, and a special panel discussion titled, “...
Back to Newsroom