Exhibit 99.1

		ACE Limited Bärengasse 32 CH-8001 Zurich Switzerland		+41 (0)43 456 76 00 main +41 (0)43 456 76 01 fax www.acegroup.com

ACE REPORTS FOURTH QUARTER OPERATING INCOME OF $492 MILLION

AFTER SUPERSTORM SANDY LOSSES OF $393 MILLION AFTER-TAX;

BOOK VALUE UP 2.1% IN QUARTER WITH OPERATING ROE OF 8%

ZURICH — January 29, 2013 — ACE Limited (NYSE: ACE) today reported net income for the quarter ended December 31, 2012, of $2.22 per share, compared with $2.15 per share for the same quarter last year.⁽¹⁾ Income excluding net realized gains (losses) was $1.43 per share, compared with $1.90 per share for the same quarter last year.⁽²⁾ After-tax catastrophe losses for the fourth quarter 2012 were $400 million, net of reinsurance and including reinstatement premiums, or $1.16 per share, compared with $137 million, or $0.40 per share, for the same quarter last year. Book value and tangible book value increased 2.1% and 2.7%, respectively, from September 30, 2012. Book value and tangible book value per share now stand at $80.90 and $66.28, respectively. Operating return on equity (ROE) for the quarter was 8.0%.⁽²⁾ The property and casualty (P&C) combined ratio for the quarter was 105.5%, which includes net pre-tax losses from Superstorm Sandy of $502 million ($393 million after-tax) and a pre-tax charge for asbestos and environmental and other run-off business of $140 million ($90 million after-tax). Operating income includes a tax benefit of $121 million from the favorable resolution of prior years’ tax matters.

Fourth Quarter Summary

(in millions, except per share amounts)

(Unaudited)

For the year ended December 31, 2012, net income was $7.89 per share, compared with $4.52 per share for 2011. Income excluding net realized gains (losses) was $7.65 per share, compared with $6.84 per share for 2011. Book value increased $3.2 billion, up 13.1% from December 31, 2011, and tangible book value increased $3.0 billion, up 15.5%. The P&C combined ratio for the year was 93.9%.

Full Year Summary

(in millions, except per share amounts)

(Unaudited)

Evan G. Greenberg, Chairman and Chief Executive Officer of ACE Limited, commented: “ACE had a good fourth quarter, which contributed to an excellent year. Even with the impact of Superstorm Sandy, we produced over $490 million of operating income and increased book value per share 2%. These results continue to demonstrate the strength of our underwriting culture and balance sheet, and the benefits of our globally diversified business.

“For the year, after-tax operating income was $2.6 billion, up 13% from 2011. We produced $1.2 billion in underwriting income – an increase of 11% over prior year – and a combined ratio of 93.9%. This is an excellent underwriting result, particularly given the worst drought conditions in the U.S. in 25 years as well as the losses from Sandy. We also produced strong investment results, with investment income down less than 3% – a good performance considering record low interest rates. Our operating ROE was 11% and per share book value grew 12% for the year, bringing three-year and five-year compounded annual book value per share growth to 11.4% and 10.7%, respectively.

“Net premiums globally grew 6% for the year and in constant dollars – 9% excluding our crop insurance business. Our premium revenue growth is benefitting from an improved price environment in the U.S., our large and growing business presence around the world in Asia, Latin America and Europe, and our unique and balanced portfolio of insurance products including commercial, specialty and personal P&C,

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personal accident and life. Insurance pricing in the U.S. continues to improve and price increases are spreading to more product classes – a trend that has continued into the first quarter. With low interest rates pressuring industry returns, we expect this orderly and rational trend of price increases to continue. For our company, a continued focus on underwriting discipline, enhanced through the use of portfolio management and data analytics, is contributing significantly to both our premium growth and underwriting profitability, and we expect this discipline will continue to make a notable difference in our results going forward.”

Operating highlights for the quarter and full year ended December 31, 2012, were as follows: ⁽¹⁾

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Details of financial results by business segment are available in the ACE Limited Financial Supplement. Key segment items for the quarter and full year ended December 31, 2012, include:

Please refer to the ACE Limited Financial Supplement, dated December 31, 2012, which is posted on the company’s website in the Investor Information section, and access Financial Reports for more detailed information on individual segment performance, together with additional disclosure on reinsurance recoverable, loss reserves, investment portfolio and capital structure.

The company also issued 2013 guidance. Operating income is expected to range between $6.60 and $7.00 per share. Catastrophe losses included in the estimate are $475 million pre-tax ($395 million after-tax), which are in line with last year’s catastrophe loss guidance. The operating income projections included in this guidance are for current accident year results only and by definition do not include any estimate for prior period reserve development.

ACE will host its fourth quarter earnings conference call and webcast on Wednesday, January 30, 2013, beginning at 8:30 a.m. Eastern. The earnings conference call will be available via live and archived webcast at www.acegroup.com or by dialing 877-681-3375 (within the United States) or 719-325-4880 (international); passcode 3252473. Please refer to the ACE Group website in the Investor Information section under Calendar of Events for details. A replay of the call will be available until Wednesday, February 13, 2013 and the archived webcast will be available for approximately one month. To listen to the replay, please dial 888-203-1112 (in the United States) or 719-457-0820 (international); passcode 3252473.

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The ACE Group is one of the world’s largest multiline property and casualty insurers. With operations in 53 countries, ACE provides commercial and personal property and casualty insurance, personal accident and supplemental health insurance, reinsurance and life insurance to a diverse group of clients. ACE Limited, the parent company of the ACE Group, is listed on the New York Stock Exchange (NYSE: ACE) and is a component of the S&P 500 index. Additional information can be found at: www.acegroup.com.

Operating income or income excluding net realized gains (losses), net of tax is a common performance measurement for insurance companies. We believe this presentation enhances the understanding of our results of operations by highlighting the underlying profitability of our insurance business. We exclude net realized gains (losses) and net realized gains (losses) included in other income (expense) related to partially-owned entities because the amount of these gains (losses) is heavily influenced by, and fluctuates in part according to, the availability of market opportunities.

Underwriting income (loss) is calculated by subtracting losses and loss expenses, policy benefits, policy acquisition costs and administrative expenses from net premiums earned. We use underwriting income and operating ratios to monitor the results of our operations without the impact of certain factors, including net investment income, other income (expense), interest and income tax expense and net realized gains (losses). Life underwriting income includes net investment income and gains (losses) from fair value changes in separate account assets that do not qualify for separate account reporting under generally accepted accounting principles (GAAP). P&C underwriting income and consolidated underwriting income are non-GAAP financial measures. We believe the use of these measures enhances the understanding of our results of operations by highlighting the underlying profitability of our insurance business.

Operating effective tax rate is a non-GAAP financial measure. The numerator excludes tax on net realized gains (losses). The denominator excludes net realized gains (losses), before tax.

Operating return on equity (ROE) or ROE calculated using income excluding net realized gains (losses) is an annualized non-GAAP financial measure. The ROE numerator includes income adjusted to exclude net realized gains (losses), net of tax. The ROE denominator includes the average shareholders’ equity for the period adjusted to exclude unrealized gains (losses) on investments, net of tax. To annualize a quarterly rate, multiply by four. Annualized ROE calculated using income excluding realized gains (losses) is a useful measure as it enhances the understanding of the return on shareholders’ equity by highlighting the underlying profitability relative to shareholders’ equity excluding the effect of unrealized gains and losses on our investments.

Book value per common share is shareholders’ equity divided by the shares outstanding.

Tangible book value per common share is shareholders’ equity less goodwill and other intangible assets divided by the shares outstanding.

See reconciliation of Non-GAAP Financial Measures on pages 21-22 in the Financial Supplement. These measures should not be viewed as a substitute for net income, return on equity, or effective tax rate determined in accordance with GAAP.

NM - not meaningful comparison

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Cautionary Statement Regarding Forward-Looking Statements:

Forward-looking statements made in this press release, such as those related to company performance and guidance, pricing and product mix, economic outlook and insurance market conditions, reflect our current views with respect to future events and financial performance and are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Such statements involve risks and uncertainties that could cause actual results to differ materially, including without limitation, the following: competition, pricing and policy term trends, the levels of new and renewal business achieved, the frequency of unpredictable catastrophic events, actual loss experience, uncertainties in the reserving or settlement process, integration activities and performance of acquired companies, new theories of liability, judicial, legislative, regulatory and other governmental developments, litigation tactics and developments, investigation developments and actual settlement terms, the amount and timing of reinsurance recoverable, credit developments among reinsurers, rating agency action, possible terrorism or the outbreak and effects of war, and economic, political, regulatory, insurance and reinsurance business conditions, as well as management’s response to these factors, and other factors identified in our filings with the Securities and Exchange Commission. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the dates on which they are made. We undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

(tables to follow)

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ACE Limited

Summary Consolidated Balance Sheets

(in millions of U.S. dollars, except per share data)

(Unaudited)

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ACE Limited

Summary Consolidated Financial Data

(in millions of U.S. dollars, except share, per share data, and ratios)

(Unaudited)

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ACE Limited

Consolidated Supplemental Segment Information

(in millions of U.S. dollars)

(Unaudited)

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