ACE LTD
424B2, 2000-09-08
FIRE, MARINE & CASUALTY INSURANCE
Previous: CMC SECURITIES CORP II, 8-K, EX-28.2, 2000-09-08
Next: MAXUS LAUREATE FUND, N-30D, 2000-09-08



<PAGE>

                                                Filed Pursuant to Rule 424(b)(2)
                                                Registration No. 333-78841


Prospectus Supplement
(To Prospectus dated April 6, 2000)

                               11,000,000 Shares

                                     [LOGO]

                                  ACE Limited

                                Ordinary Shares

                         -----------------------------

   All of the ordinary shares being offered by this prospectus supplement are
being offered by us. Our ordinary shares are listed on the New York Stock
Exchange under the symbol "ACL". On September 6, 2000, the closing price of our
ordinary shares on the NYSE was $33.4375 per share.

                         -----------------------------

   The ordinary shares will be purchased from us by Banc of America Securities
LLC at a price of $32.685 per share (resulting in $359,535,000 aggregate net
proceeds, before expenses, to us). The ordinary shares may be offered by Banc
of America Securities from time to time in one or more transactions (which may
involve block transactions) on the NYSE, in the over-the-counter market,
through negotiated transactions or otherwise at market prices prevailing at the
time of the sale or at prices otherwise negotiated, subject to prior sale,
when, as and if delivered to and accepted by Banc of America Securities.

   Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or passed upon the
accuracy or adequacy of this prospectus supplement or the accompanying
prospectus. Any representation to the contrary is a criminal offense.

   We have granted Banc of America Securities the right to purchase up to an
additional 1,250,000 ordinary shares to cover over-allotments. Banc of America
Securities can exercise this right at any time within thirty days after the
offering. The ordinary shares will be ready for delivery on or about September
12, 2000.

                         Banc of America Securities LLC

                         -----------------------------

          The date of this prospectus supplement is September 6, 2000
<PAGE>

                               TABLE OF CONTENTS

                             Prospectus Supplement

<TABLE>
<CAPTION>
                                                                           Page
                                                                           ----
<S>                                                                        <C>
Forward-Looking Statements................................................  S-3
Use of Proceeds...........................................................  S-3
ACE Limited...............................................................  S-4
Capitalization............................................................ S-10
Unaudited Pro Forma Condensed Consolidated Financial Information of ACE... S-11
Management................................................................ S-15
Price Range of Our Ordinary Shares and Dividends.......................... S-18
Underwriting.............................................................. S-19

                                   Prospectus

About this Prospectus.....................................................    2
ACE Limited...............................................................    3
ACE INA...................................................................    3
The ACE Trusts............................................................    4
Use of Proceeds...........................................................    5
Ratio of Earnings to Fixed Charges and Preferred Share Dividends of ACE...    5
General Description of the Offered Securities.............................    6
Description of ACE Capital Stock..........................................    6
Description of the Depositary Shares......................................   19
Description of ACE Debt Securities........................................   22
Description of ACE INA Debt Securities and ACE Guarantee..................   37
Description of the Warrants to Purchase Ordinary Shares or Preferred
 Shares...................................................................   56
Description of the Warrants to Purchase Debt Securities...................   58
Description of Preferred Securities.......................................   59
Description of Preferred Securities Guarantees............................   70
Description of Stock Purchase Contracts and Stock Purchase Units..........   75
Plan of Distribution......................................................   75
Legal Opinions............................................................   77
Experts...................................................................   78
Enforcement of Civil Liabilities Under United States Federal Securities
 Laws.....................................................................   78
Where You Can Find More Information.......................................   78
</TABLE>

   You should rely only on the information contained or incorporated by
reference in this prospectus supplement and the accompanying prospectus. We
have not, and the underwriter has not, authorized any person to provide you
with different information. If anyone provides you with different or
inconsistent information, you should not rely on it. We are not, and the
underwriter is not, making an offer to sell these securities in any
jurisdiction where the offer or sale is not permitted. You should assume that
the information appearing in this prospectus supplement and the accompanying
prospectus is accurate as of the date on the cover of this prospectus
supplement only. Our business, financial condition, results of operations and
prospects may have changed since that date.

                                      S-2
<PAGE>

                           FORWARD-LOOKING STATEMENTS

   The Private Securities Litigation Reform Act of 1995 provides a "safe
harbor" for forward-looking statements. Any written or oral statements made by
us or on our behalf may include forward-looking statements which reflect our
current views with respect to future events and financial performance. These
forward-looking statements are subject to uncertainties and other factors that
could cause actual results to differ materially from such statements. These
uncertainties and other factors (which we describe in more detail elsewhere in
this prospectus supplement and the accompanying prospectus and in our SEC
filings that we have incorporated by reference) include, but are not limited
to:

  . uncertainties relating to government and regulatory policies (such as
    subjecting us to insurance regulation or taxation in additional
    jurisdictions or amending, revoking or enacting any laws, regulations or
    treaties affecting our current operations);

  . the occurrence of catastrophic events or other insured or reinsured
    events with a frequency or severity exceeding our estimates;

  . legal, regulatory and legislative developments;

  . the uncertainties of the loss reserving process, including the
    difficulties associated with assessing environmental and latent injuries;

  . the actual amount of new and renewal business and market acceptance of
    our products;

  . the loss of the services of any of our executive officers;

  . changing rates of inflation and other economic conditions;

  . losses due to foreign currency exchange rate fluctuations;

  . the ability to collect reinsurance recoverables;

  . the competitive environment in which we operate, related trends and
    associated pricing pressures and developments;

  . the impact of mergers and acquisitions, including the ability to
    successfully integrate acquired businesses and achieve cost savings,
    competing demands for our capital, and the risk of undisclosed
    liabilities;

  . developments in global financial markets which could affect our
    investment portfolio and financing plans; and

  . risks associated with the introduction of new products and services.

   The words "believe," "anticipate," "estimate," "project," "plan," "expect,"
"intend," "hope," "will likely result" or "will continue" and variations
thereof and similar expressions identify forward-looking statements. We caution
readers not to place undue reliance on these forward-looking statements, which
speak only as of their dates. We undertake no obligation to publicly update or
revise any forward-looking statements, whether as a result of new information,
future events or otherwise.

                                USE OF PROCEEDS

   The net proceeds from the sale of the ordinary shares offered hereby (after
deducting estimated expenses of the offering) are estimated to be approximately
$359,000,000. The proceeds from the offering initially will be invested in
investment-grade marketable securities which will be used to support our
guarantee of a subsidiary trust's preferred securities. Upon repayment of these
preferred securities, the proceeds will be used for general corporate purposes.

                                      S-3
<PAGE>

                                  ACE LIMITED

General

   ACE Limited is a holding company incorporated with limited liability in the
Cayman Islands, which maintains its business office in Bermuda. We provide a
broad range of specialty property and casualty insurance and reinsurance
products to a diverse group of clients worldwide. We operate through six main
business segments: ACE Bermuda, ACE USA, ACE International, ACE Global Markets,
ACE Global Reinsurance and ACE Financial Services.

Strategy

   Our long-term business strategy focuses on achieving underwriting profits
and providing value to our clients and shareholders through the utilization of
our substantial capital base within the global insurance and reinsurance
markets. To date, we have achieved this objective through a combination of
product and geographic diversification, as well as through a number of
strategic acquisitions. The ACE INA acquisition was a significant step forward
in this strategy and makes us one of only a handful of truly global insurance
enterprises.

   For an acquired company to be strategic, it must be operationally accretive
in addition to being financially accretive. The ACE INA acquisition provided
ACE with a considerably expanded competitive profile in the U.S. market and a
significant international presence in approximately 46 other countries. The ACE
INA acquisition also provided ACE with attractive opportunities for growth not
only in the U.S. but also in Europe, Asia and Latin America. The ACE INA
businesses complemented the other businesses of ACE, resulting in significant
further diversification benefits. This diversification is important to
accommodate the needs of ACE's expanding, global client base of multinational
clients in a dynamic insurance marketplace.

Our Operating Subsidiaries

 ACE Bermuda

   ACE Bermuda provides property and casualty insurance and reinsurance
coverage across a broad range of businesses including: excess liability,
professional lines, satellite, tailored risk solutions, aviation, excess
property, financial guaranty, mortgage guaranty and political risk. The nature
of the coverage provided is generally expected to result in low frequency but
high severity of individual losses. We use the reinsurance market as an
integral part of the risk management strategy of ACE Bermuda and we have
secured reinsurance coverage on all of our major lines of business.

   ACE Bermuda conducts political risk insurance business through Sovereign
Risk Insurance Limited, a joint venture with other insurers. Sovereign Risk is
a Bermuda-based managing general agency which issues subscription policies for
political risk insurance coverage, with ACE Bermuda assuming 50 percent of each
risk underwritten with a 10 percent retrocession. ACE Bermuda also
participates, on a quota share basis, in two other political risk programs:
co-reinsurance of MIGA (the insurance arm of the World Bank) and Exporter's
Credit, which reinsures trade credit risks.

 ACE INA

   On July 2, 1999, we acquired the ACE INA businesses from CIGNA. ACE INA
operates in nearly 50 countries providing property and casualty insurance to
businesses and individuals on a global basis. One of ACE INA's primary domestic
insurance companies, Insurance Company of North America, traces its origins to
1792. Today, ACE INA benefits from significant domestic and international brand
recognition, long-standing domestic and international operations and the
accumulated results of CIGNA's marketing and promotional efforts.

                                      S-4
<PAGE>

   The ACE INA acquisition provided us with a number of strategic benefits and
growth opportunities. Most importantly, the ACE INA acquisition significantly
furthered our strategy of diversifying both geographically and by product line.
Prior to the acquisition, we operated from our bases in Bermuda, the United
States, the United Kingdom and Ireland. With the acquisition, we became one of
a very few truly global property and casualty insurance companies, with
operations in nearly 50 countries and all 50 states. This global presence has
been built over a significant period of time and would be difficult, if not
impossible, to duplicate cost and time effectively.

   In addition, the ACE INA acquisition greatly expanded our product range and
our customer base. This product line diversification allowed us to diversify
our risk and income streams and to offer a wider product range to a broader
customer base worldwide. This diversification should also decrease the
volatility of our revenues and income over time.

   ACE INA is organized into two operating segments, ACE USA and ACE
International.

  ACE USA

   The principal business of ACE USA is the combined business of ACE US
Holdings, which we acquired in 1998, and the domestic operations of ACE INA,
which we acquired on July 2, 1999. The domestic operations of ACE INA include
ongoing domestic operations as well as the run-off operations of Brandywine
Holdings, Inc., which does not write new policies. The ongoing operations
provide specialty property and casualty products and services including:
aerospace, diversified products, marine, professional risk services, property,
special risk, U.S., international, warranty, Westchester Specialty and "other"
operations. The other operations include all remaining insurance operations of
ACE USA and insurance related operations. The business unit's insurance results
include residual market workers' compensation business, pools and syndicates
not attributable to a single business unit and the runoff of open market
facilities business. Insurance related operations include those of ESIS Inc.
("ESIS"), our in-house third party claims administrator, and Recovery Services
International ("RSI"), which sells salvage, subrogation and premium collection
services.

   During 1999, we sold all of the renewal rights to the Commercial Insurance
Services business, a business unit acquired as part of the ACE INA acquisition,
under two separate agreements. In October, 1999, we reached an agreement with
Wausau Commercial Insurance to sell the renewal rights to the CIS middle
market, commercial business, as well as non-California workers compensation
business. In November 1999, we reached an agreement with Superior National
Insurance Group to sell the renewal rights to the CIS California worker's
compensation business. We have not yet sold the existing insurance reserves for
the CIS book.

   The Brandywine run-off operation was created in 1995 by the restructuring of
ACE INA's domestic operations into two separate operations, ongoing and run-
off. Brandywine contains substantially all of ACE INA's asbestos and
environmental exposures, as well as various run-off insurance and reinsurance
businesses. The run-off operations do not actively sell insurance products but
are responsible for the management of run-off policies and environmental
pollution exposures.

  ACE International

   ACE International's operations provide insurance coverage and services on a
worldwide basis, excluding the United States. Its principal business operations
are property & casualty and accident & health. Operating management is carried
out through four regional teams: Europe, Far East, Asia/Pacific and Latin
America.

   Our international property and casualty operations are conducted through a
specialist insurance organization offering capacity and technical expertise in
the underwriting of large and unique risks for targeted commercial customer
segments, as well as individual coverages in selected markets. Our property
insurance products include traditional commercial fire coverage as well as
energy industry-related and other technical coverages. Our principal casualty
products are commercial general liability and liability coverage for

                                      S-5
<PAGE>

multinational organizations. Marine cargo and hull coverages are written in the
London market, as well as in marine markets throughout the world. Our
international operations also design and implement risk-financing alternatives
for customers whose approach to risk management includes some form of self-
insurance.

   Our international accident and health insurance operations provide products
that are designed to meet the insurance needs of individuals and groups outside
of U.S. insurance markets. These products include accidental death, medical,
hospital indemnity and income protection coverages.

   We reduce our exposure to economic loss arising from foreign exchange
fluctuations in ACE International by maintaining invested assets abroad in the
same currency as the related liabilities.

ACE Global Markets

   ACE Global Markets primarily encompasses our operations in the Lloyd's
market. We own five managing agencies that operate in Lloyd's. These managing
agencies receive fees and profit commissions in respect of the underwriting and
administrative services they provide to the syndicates. For the calendar 2000
year of account, our managing agencies will manage two active syndicates with
total capacity under management of approximately $1 billion. As our
participation in the syndicates under management grows, the amount of third
party fees and profit commissions received by our managing agencies will
decrease.

   We also provide funds at Lloyd's to support underwriting by Lloyd's
syndicates managed by our managing agencies. For the 1999 year of account,
through four corporate members, we participated in all four of the ACE managed
syndicates which together had an underwriting capacity of approximately $725
million out of the total $1.05 billion of capacity. Included in the four
syndicates is Syndicate 2488, a dedicated corporate syndicate whose capital is
provided solely by us, and which underwrites in parallel with Syndicate 488
comprising capacity provided by Names and other corporate members. The
syndicates on which we participate provide liability, specialty marine,
property, casualty and aviation insurance.

   For the 2000 year of account, we have merged our syndicates into one so that
only Syndicate 2488 is underwriting in 2000. The capacity of this syndicate is
approximately $990 million of which approximately 84 percent, or $829 million,
will be provided by our corporate members. This does not include the syndicates
managed by Capital Re's Lloyd's operations which we discuss below.

   On December 30, 1999, we acquired RGB Underwriting Agency Limited ("RGBUA")
as part of the acquisition of Capital Re Corporation. Capital Re also owns a
corporate member at Lloyd's through which it participates on two syndicates
managed by RGBUA for the 1999 year of account. Prior to our acquisition of
Capital Re, one of the syndicates was ceased, such that for the 2000 year of
account the Capital Re corporate member will participate in the remaining
active syndicate.

ACE Global Reinsurance

   The principal business of our ACE Global Reinsurance segment is the
operations of Tempest Reinsurance Company Limited ("Tempest Re") which provides
property catastrophe reinsurance worldwide to insurers of commercial and
personal property. Property catastrophe reinsurance protects a ceding company
against an accumulation of losses covered by the insurance policies it has
issued arising from a common event or "occurrence." Tempest Re underwrites
reinsurance principally on an excess of loss basis.

   On April 1, 1998, we acquired CAT Limited, another Bermuda-based property
catastrophe reinsurer. CAT's underwriting operations were immediately combined
with those of Tempest Re, and on January 1, 1999, CAT was merged into Tempest
Re.

                                      S-6
<PAGE>

   In early 2000, Tempest Re initiated plans to expand its operations to become
a multiline global reinsurer. This expansion is expected to reduce volatility
and enable Tempest Re to diversify its business and offer integrated risk
solutions to satisfy client demand. We consider such an integrated approach
vital to capturing an increasing share of the future reinsurance market.

   Business growth requires expansion outside of Bermuda, and our initial
emphasis is on the major markets of the United States and the United Kingdom.
We may consider further global expansion in a subsequent phase of this
strategy. We will seek business development opportunities by combining the
strengths of our client relationship skills, underwriting expertise, rational
pricing and capital base. We will add new lines of business in accordance with
our strategy to offer risk protection across all lines of insurance and to be
able to package insurance risk with financial, investment and operational risk.

ACE Financial Services

   Our ACE Financial Services segment primarily includes the companies acquired
in the Capital Re acquisition on December 30, 1999 and ACE Capital Re
International, a subsidiary of ACE Bermuda. Following the acquisition, Capital
Re was renamed ACE Financial Services Inc. The companies in our ACE Financial
Services segment provide value-added insurance and reinsurance products in
several specialty insurance markets which emphasize protection from credit or
financial risks through financial guaranty coverages and financial risk
coverages. The financial guaranty business is composed of municipal and non-
municipal financial guaranty reinsurance and credit default swaps. The
financial risks business is composed of mortgage guaranty reinsurance, trade
credit reinsurance, title reinsurance and financial solutions.

   ACE Financial Services' financial guaranty division is dedicated to serving
the U.S. domestic and international financial guaranty insurance markets and
has established itself as a leading specialty reinsurer (by market share) of
financial guaranties of investment grade debt obligations, principally
municipal and non-municipal debt obligations.

   Financial guaranty insurance is a type of credit enhancement in the form of
a surety or insurance which is regulated under the insurance laws of various
jurisdictions. The insurance provides an unconditional and irrevocable guaranty
which indemnifies the insured against nonpayment of principal and interest when
due by an obligor on an insured debt obligation. Additionally, the financial
guaranty business sells municipal and non-municipal credit risk protection on a
facultative basis to a wide variety of counterparties through credit default
swap transactions. Although structured as financial derivatives, credit default
swaps are functionally equivalent to financial guaranty insurance.

   The financial risk solutions business is focused on providing highly
structured solutions to problems of financial and risk management through
reinsurance, including credit enhancement, excess of loss and surplus
management covers.

   The financial risk solutions business includes the reinsurance of mortgage
guaranty insurance, trade credit reinsurance and title insurance. Mortgage
guaranty insurance is a specialized class of credit insurance, providing
protection to mortgage lending institutions against the default of borrowers on
mortgage loans which at the time of the advance had a loan-to-value ("LTV")
ratio in excess of 80 percent. Trade credit insurance protects sellers of goods
and services from the risk of non-payment of trade receivables and is a large,
well-established specialty insurance product, particularly in Western Europe.
Policyholders are generally covered for short-term exposures (generally less
than 180 days and averaging 60-90 days) to insolvency or payment defaults by
domestic and/or foreign buyers. Some export credit policies also cover
political events which can disrupt either the flow of goods and services or
payment for goods and services. Title insurance essentially provides the
acquirer or the mortgagee of real property with two forms of coverage: the
first assures that the search and examination of the real estate records upon
which the acquirer or mortgagee is relying for good and clean title were
properly performed, and the second form of coverage assures that all previously
existing mortgages and liens will be paid off from the proceeds of the sale or
refinancing of the property.

                                      S-7
<PAGE>

We Compete Vigorously in Our Various Markets

   Competitive forces in the international property and casualty insurance and
reinsurance business are substantial. Results are a function of underwriting
and investment performance, direct costs associated with the delivery of
insurance products, including the costs of regulation, the frequency and
severity of both natural and man-made disasters, as well as inflation (actual,
social and judicial), which impact loss costs. Decisions made by insurers
concerning their mix of business (offering certain types of coverage but
declining to write other types), their methods of operations and the quality
and allocation of their assets (including any reinsurance recoverable balances)
will all affect their competitive position. The relative size and reputation of
insurers may influence purchasing decisions of present and prospective
customers and will contribute to both geographic and industrial sector market
penetration. Oversupply of available capital has historically had the effect of
encouraging competition and depressing prices. ACE's competitive position in
the property and casualty insurance industry is influenced by all of these
factors.

We Enjoy Strong Insurance Ratings

   All of our operating subsidiaries have received ratings from A.M. Best
Company and Standard & Poor's Ratings Services, except for our Financial
Services companies and our Ireland-based companies. The Lloyd's market has also
received ratings from A.M. Best and S&P. These ratings are based upon factors
relevant to policyholders, agents and intermediaries and are not directed
toward the protection of investors. Such ratings are not recommendations to
buy, sell or hold securities. ACE Bermuda has received a group rating of A+
from A.M. Best and an A+ claims paying ability rating from S&P. ACE INA has
received a group rating of A- from A.M. Best and an A+ claims paying ability
rating from S&P. The Lloyd's market, including ACE Global Markets, has received
a rating of A from A.M. Best and a claims paying ability rating of A+ from S&P.
Tempest Re and ACE USA's insurance subsidiaries have received ratings of A from
A.M. Best and claims paying ability ratings of A+ from S&P. The financial
strength of ACE Guaranty Re Company, the primary reinsurance company in the
Financial Services group, is rated AAA by S&P and Aa2 by Moody's Investors
Service Inc. The financial strength of Capital Mortgage Reinsurance Company,
ACE Capital Re Bermuda Ltd. and ACE Capital Title Reinsurance Company, three
other companies in the Financial Services group, are rated AA by S&P.

How We Estimate and Provide For Unpaid Losses and Loss Expenses

   We are required to make provisions in our financial statements for the
estimated unpaid liability for losses and loss expenses for claims made against
us under the terms of our policies and agreements. Estimating the ultimate
liability for losses and loss expenses is an imprecise science subject to
variables that are influenced by both internal and external factors. This is
true because claim settlements to be made in the future may be impacted by
changing rates of inflation and other economic conditions, changing
legislative, judicial and social environments and changes in our claims
handling procedures. In any liability cases, significant periods of time,
ranging up to several years or more, may elapse between the occurrence of an
insured loss, the reporting of the loss to us and the settlement of our
liability for that loss.

   Losses and loss expenses are charged to income as incurred. The reserve for
unpaid losses and loss expenses represents the estimated ultimate losses and
loss expenses less paid losses and loss expenses and is composed of case
reserves, loss expense reserves and IBNR loss reserves. During the loss
settlement period, which can be many years in duration, additional facts
regarding individual claims and trends often will become known. As these become
apparent, case reserves may be adjusted by allocation from the IBNR loss
reserve without any change in the overall reserve. In addition, application of
statistical and actuarial methods may require the adjustment of the overall
reserves upward or downward from time to time. The final liability nonetheless
may be significantly greater than or less than the prior estimates.

   At June 30, 2000, the net reserve for unpaid losses, including IBNR loss
reserves, was $8.9 billion. We continually evaluate our reserves in light of
developing information and in light of discussions and negotiations

                                      S-8
<PAGE>

with our insureds. While we are unable at this time to determine whether
additional reserves (which could have a material adverse effect upon our
financial condition, results of operations and cash flows) may be necessary in
the future, we believe that our reserves for unpaid losses and loss expenses
are adequate as of June 30, 2000.

How We Invest Our Assets

   Our primary investment objectives are to ensure that funds will be available
to meet our insurance and reinsurance obligations, and then to maximize our
rate of return on invested funds within specifically approved constraints as to
credit quality, liquidity and volatility. Accordingly, our investment portfolio
is invested primarily in fixed income instruments of high credit quality.

   Written investment guidelines, approved by the Finance Committee of our
Board of Directors, document standards to ensure portfolio liquidity and
diversification, maintain credit quality and limit volatility within approved
asset allocation guidelines. The use of financial futures, forwards and options
contracts, as well as certain mortgage derivative securities which do not
provide a planned stable structure of principal and interest payments, require
prior approval from the Finance Committee.

   Our consolidated investment portfolio is divided into three segments. Assets
which are required to match and offset certain specifically identified
liabilities are segregated in an asset-liability management segment. The second
segment, the core portfolio, supports the current general insurance exposures
and is structured to have low to moderate investment risk. The remainder of the
portfolio, the discretionary segment, is invested to enhance total return and
return on equity by taking on additional investment risks within prudent
limits. The core and discretionary portfolios are managed by professional
outside managers whose performance is measured against certain recognized broad
market indices.

   Funds are invested in both U.S. and non-U.S. dollar denominated high-
quality, fixed maturity and equity securities. The approved asset allocation
targets 20 percent of the consolidated investment portfolio to have an exposure
to equities, with international equities limited to no more than 35 percent of
total equities. The asset allocation target allows 5 percent of the
consolidated investment portfolio (excluding the assets of ACE INA) to be
invested in alternative investments. The remainder of the consolidated
portfolio is to be invested predominantly in U.S. dollar fixed income
securities.

                                      S-9
<PAGE>

                                 CAPITALIZATION

   The following table sets forth, as of June 30, 2000, our short-term debt and
capitalization (1) on an historical basis, and (2) as adjusted to give effect
to the sale of the ordinary shares offered hereby and the expensing of $7
million of deferred fees previously paid. The following table assumes that Banc
of America Securities' over-allotment option has not been exercised. You should
read this table in conjunction with our historical consolidated financial
statements and the related notes and our unaudited pro forma condensed
consolidated financial information.

<TABLE>
<CAPTION>
                                                         As of June 30, 2000
                                                        ----------------------
                                                                        As
                                                          Actual     Adjusted
                                                        ----------  ----------
                                                             (dollars in
                                                             thousands)
<S>                                                     <C>         <C>
Short-Term Debt........................................ $  351,851  $  351,851
                                                        ==========  ==========
Long-Term Debt
  7.75% Debentures due 2002............................     74,894      74,894
  8.20% Notes due 2004.................................    400,000     400,000
  8.30% Notes due 2006.................................    299,334     299,334
  8.63% Notes due 2008.................................    250,000     250,000
  8.875% Debentures due 2029...........................    100,000     100,000
  11.2% Notes due 2009.................................    300,000     300,000
                                                        ----------  ----------
    Total long-term debt...............................  1,424,228   1,424,228
Hybrid trust preferred securities......................    875,000     875,000
Income PRIDES..........................................    311,050     311,050
Shareholders' equity:
  Ordinary Shares (par value $0.041666667; 300,000,000
   authorized, 217,654,930 shares issued and
   outstanding, actual, 228,654,930 shares issued and
   outstanding, as adjusted)...........................      9,069       9,527
  Additional paid-in capital...........................  2,199,165   2,550,707
  Unearned stock grant compensation....................    (26,494)    (26,494)
  Accumulated other comprehensive loss.................   (145,221)   (145,221)
  Retained earnings....................................  2,552,532   2,552,532
                                                        ----------  ----------
    Total shareholders' equity.........................  4,589,051   4,941,051
                                                        ----------  ----------
      Total capitalization............................. $7,551,180  $7,903,180
                                                        ==========  ==========
</TABLE>

                                      S-10
<PAGE>

    UNAUDITED PRO FORMA CONDENSED CONSOLIDATED FINANCIAL INFORMATION OF ACE

   On July 2, 1999, ACE purchased the international and domestic property and
casualty businesses of CIGNA for $3.45 billion in cash. Under the terms of the
acquisition agreement, ACE acquired CIGNA's domestic property and casualty
insurance operations and also its international property and casualty insurance
companies and branches, including most of the accident and health business
written through those companies. National Indemnity Company, a subsidiary of
Berkshire Hathaway Inc., provided $1.25 billion of reinsurance against
unanticipated increases in recorded reserves for insurance losses and loss
adjustment expenses of certain subsidiaries being acquired by ACE. ACE financed
this acquisition with available cash and the proceeds from the issuance of a
hybrid trust preferred security and commercial paper. We repaid a portion of
the commercial paper with the proceeds from the sale of $800 million principal
amount of senior debt in August 1999, $100 million of trust preferred
securities in December 1999, $300 million of notes in December 1999, $300
million of trust preferred securities in March 2000 and $300 million of FELINE
PRIDES in April 2000.

   On October 26, 1999, ACE, Capital Re and CapRe Acquisition Corp. entered
into an amended and restated merger agreement. This agreement replaced the
original merger agreement entered into by ACE and Capital Re on June 10, 1999.
Under the new agreement, Capital Re stockholders received 0.65 ordinary shares
of ACE for each share of common stock of Capital Re at closing plus a cash
payment equal to $3.4456. The transaction was completed on December 30, 1999.

   The unaudited pro forma condensed consolidated statements of operations for
the twelve months ended December 31, 1999, present operating results of ACE as
if these acquisitions had occurred on January 1, 1999. These amounts do not
include ACE's estimate of the expected annual operating expense savings from
the acquisition of CIGNA's property and casualty businesses.

   The unaudited pro forma condensed consolidated financial statements should
be read in conjunction with ACE's consolidated financial statements included in
ACE's Annual Report on Form 10-K for the year ended December 31, 1999, the
audited combined financial statements of CIGNA's property and casualty
businesses for the year ended December 31, 1998, previously filed as Exhibit
99.1 to a Form 8-K filed by ACE dated May 19, 1999, the consolidated financial
statements of Capital Re included in the Capital Re Annual Report on Form 10-K
for the year ended December 31, 1998 and the unaudited consolidated financial
statements of Capital Re included in the Capital Re Quarterly Report on Form
10-Q for the quarter ended September 30, 1999. The unaudited pro forma
condensed consolidated financial information is not intended to be indicative
of the consolidated results of operations or financial position of ACE that
would have been reported if these acquisitions had occurred at the dates
indicated or of the consolidated results of future operations or of future
financial position.

   The acquisitions of CIGNA's property and casualty businesses and Capital Re
have both been accounted for as purchases in accordance with generally accepted
accounting principles. Under purchase accounting, the total purchase price is
allocated to the acquired assets and liabilities based on their fair values.

                                      S-11
<PAGE>

      UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
                                                  Twelve Months Ended December 31, 1999
                  ----------------------------------------------------------------------------------------------------------
                                                                                                                Pro Forma
                                                             Pro Forma                                         Combined for
                                                              Combined                                            CIGNA
                                                             for CIGNA                                           P&C and
                                 CIGNA    Pro Forma             P&C                       Pro forma              Capital
                     ACE(1)     P&C(2)   Adjustments Notes  Acquisition   Capital  Re(8) Adjustments   Notes  Re Acquisition
                  ------------  -------  ----------- ------ ------------  -------------- -----------  ------- --------------
                                                      (In millions of U.S. dollars)
<S>               <C>           <C>      <C>         <C>    <C>           <C>            <C>          <C>     <C>
Net Premiums
 Written........  $      2,495  $ 1,448     $               $      3,943      $ 165                            $      4,108
Net Premiums
 Earned.........         2,486    1,411                            3,897        157                                   4,054
Net investment
 income.........           493      268       (71)   (3)(4)          690         69               (6)    (12)           753
Other revenues..                    136                              136          5                                     141
Losses and loss
 expenses.......        (1,640)  (1,073)       41       (4)       (2,672)      (250)                                 (2,922)
Acquisition
 costs and
 administrative
 expenses.......          (833)    (845)                          (1,678)       (87)                                 (1,765)
Other expenses..          (150)     (16)      (92)   (5)(6)         (258)        (7)              (4)    (11)          (269)
Income tax......           (29)      28        21       (7)           20         37                                      57
                  ------------  -------     -----           ------------      -----      -----------           ------------
Income (loss)
 excluding net
 realized gains
 (losses) and
 the cumulative
 effect of
 accounting
 change.........           327      (91)     (101)                   135        (76)             (10)                    49
Net realized
 gains (losses)
 on
 investments....            38       48                               86         (6)                                     80
Cumulative
 effect of
 accounting
 change for
 guaranty fund
 and other
 insurance
 related
 assessments,
 net of taxes...                    (85)                             (85)                                               (85)
                  ------------  -------     -----           ------------      -----      -----------           ------------
Income (loss)
 from continuing
 operations.....           365     (128)     (101)                   136        (82)             (10)                    44
Loss from
 discontinued
 operations, net
 of tax.........                                                                (71)                                    (71)
                  ------------  -------     -----           ------------      -----      -----------           ------------
Net Income
 (loss).........  $        365  $  (128)    $(101)          $        136      $(153)     $       (10)          $        (27)
                  ============  =======     =====           ============      =====      ===========           ============
Basic earnings
 per share from
 continuing
 operations,
 excluding net
 realized gains
 (losses) and
 cumulative
 effect of
 accounting
 change.........  $       1.66                              $        .70                                               0.23
                  ============                              ============                                       ============
Basic earnings
 per share from
 continuing
 operations.....  $       1.88                              $        .70                                       $        .20

                  ============                              ============                                       ============
Basic earnings
 per share......  $       1.88                              $        .70                                       $       (.13)

                  ============                              ============                                       ============
Weighted average
 shares
 outstanding--
 basic..........   194,028,374                               194,028,374                  20,807,836      (9)   214,836,210

                  ============                              ============                 ===========           ============
Diluted earnings
 per share from
 continuing
 operations,
 excluding net
 realized gains
 (losses) and
 cumulative
 effect of
 accounting
 change.........  $       1.66                              $        .68                                       $       0.22

                  ============                              ============                                       ============
Diluted earnings
 per share from
 continuing
 operations.....  $       1.85                              $        .69                                       $        .20

                  ============                              ============                                       ============
Diluted earnings
 per share......  $       1.85                              $        .69                                       $       (.12)

                  ============                              ============                                       ============
Weighted average
 shares
 outstanding--
 diluted........   197,626,354                               197,626,354                  22,064,080  (9)(10)   219,690,434

                  ============                              ============                 ===========           ============
</TABLE>

                                      S-12
<PAGE>

       PRO FORMA FOOTNOTES FOR THE TWELVE MONTHS ENDED DECEMBER 31, 1999

(1) On July 2, 1999, ACE changed its fiscal year-end from September 30 to
    December 31. This change was implemented retroactively.
(2) The actual results of operations have been included with ACE since the
    acquisition date (July 2, 1999). Therefore the combined statements of
    operations of CIGNA's property and casualty businesses reflect its results
    of operations for the six months ended June 30, 1999.
(3) ACE funded part of the purchase price with $1.025 billion of cash on hand.
    The estimated investment income on this $1.025 billion of the purchase
    price has been eliminated (based on a yield of 5.8% that approximates the
    yield on the ACE portfolio for the fiscal year ended December 31, 1999).
(4) Under the terms of the acquisition agreement, CIGNA agreed to provide a
    guarantee to ACE to indemnify against unanticipated increases in recorded
    reserves for losses and loss adjustment expenses of certain subsidiaries
    being acquired by ACE. CIGNA had the option to replace its guarantee with
    reinsurance obtained from a mutually agreed upon third party reinsurer.
    Contemporaneous with the consummation of the acquisition, CIGNA exercised
    its option and replaced its guarantee with reinsurance by directing certain
    subsidiaries being acquired to transfer $1.25 billion of investments to a
    reinsurer for aggregate coverage of $2.5 billion. Such coverage attached at
    an amount equal to the net recorded reserves of the certain subsidiaries
    acquired, on the closing date, minus $1.25 billion. The estimated
    investment income on this $1.25 billion has been eliminated (based on a
    yield of 6.5% that approximates the yield on the applicable portion of the
    acquired businesses' portfolio for the fiscal year ended December 31,
    1998). The pro forma adjustment to losses and loss expenses reflects the
    estimated historical adverse development recorded during the period on the
    guaranteed reserves.
(5) In addition to the $1.025 billion of cash on hand, ACE funded the purchase
    price with $400 million from a hybrid trust preferred security and the
    remainder with commercial paper (the "initial financing"). Interest on the
    hybrid trust preferred security and commercial paper has been calculated at
    rates of 8.5% and 5.3%, respectively. A portion of the commercial paper was
    repaid with the proceeds from the sale of $800 million principal amount of
    senior debt in August 1999, $100 million of trust preferred securities in
    December 1999, $300 million of senior notes in December 1999, $300 million
    of capital securities in March 2000 and $300 million of FELINE PRIDES in
    April 2000. These pro forma financial statements reflect the initial
    financing described above.
(6) Any excess between the purchase price and the fair value of acquired net
    tangible assets will be allocated to goodwill. These pro forma financial
    statements reflect all of the excess purchase price over net tangible
    assets as goodwill. This entry reflects the amortization of goodwill for
    the period.
(7) The estimated income tax savings is based on the estimated reduction in net
    income before tax as a result of interest expense on the initial financing.
(8) The Capital Re consolidated statements of operations reflect its results of
    operations for the twelve months ended December 31, 1999.
(9) The amended and restated merger agreement among Capital Re, ACE and Cap Re
    Acquisition Corp. dated October 26, 1999 provides that, at the effective
    time of the merger, each Capital Re common share issued and outstanding
    immediately prior to the effective time will be converted into the right to
    receive 0.65 ACE ordinary shares plus a cash payment equal to the greater
    of $1.30 and the difference (if positive) between the market value of 0.65
    of an ACE ordinary share and $14.00, subject to a maximum amount of cash of
    $4.68 per Capital Re share. On December 30, 1999, ACE issued (with a total
    value of $368 million) 20,865,000 shares which were recorded at a share
    price of $17.625. The actual cash consideration, which was based on the
    average closing price of an ACE share on the NYSE as reported in The Wall
    Street Journal (NYC edition) for the five consecutive trading days ending
    three trading days prior to the closing date, subject to the limits noted
    above, was $110 million.
(10) All of the outstanding options to purchase Capital Re common shares were
     cancelled and replaced with options to purchase ACE ordinary shares. This
     adjustment represents the weighted average number of ordinary share
     equivalents outstanding related to the newly issued ACE options.

                                      S-13
<PAGE>

(11) Amortization of goodwill created by the acquisition of Capital Re,
     amounting to $105 million, is being amortized over 25 years.
(12) ACE funded part of the Capital Re purchase with $110 million of cash.
     Estimated investment income on the $110 million of the purchase price has
     been eliminated (based on a yield of 5.8% which approximates the yield on
     the ACE portfolio for the fiscal year ended December 31, 1999).

                                      S-14
<PAGE>

                                   MANAGEMENT

   The table below sets forth the names and positions of ACE's executive
officers.

<TABLE>
<CAPTION>
      Name                     Position
      ----                     --------
      <C>                      <S>
      Brian Duperreault....... Chairman and Chief Executive Officer

      Donald Kramer........... Vice Chairman

      Dominic J. Frederico.... President and Chief Operating Officer

      John Charman............ Chief Executive Officer of ACE Global Markets

      John Engestrom.......... President and Chief Executive Officer of Tempest
                               Reinsurance Company Limited

      Jerome F. Jurschak...... President and Chief Executive Officer, ACE
                               Financial Services Inc.

      Dennis B. Reding........ President and Chief Executive Officer of ACE USA

      Gary Schmalzriedt....... President and Chief Executive Officer of ACE
                               Bermuda Insurance, Ltd.

      B. Kingsley Schubert.... President and Chief Executive Officer of ACE
                               International

      Christopher Z. Marshall. Chief Financial Officer

      Peter N. Mear........... General Counsel & Secretary

      Keith P. White.......... Chief Administrative Officer

      Robert A. Blee.......... Chief Accounting Officer

      John C. Burville........ Chief Actuary

      Timothy A. Boroughs..... President and Chief Executive Officer of ACE
                               Asset Management Inc.
</TABLE>

   Brian Duperreault has been a director of ACE since October 1994. Mr.
Duperreault has served as Chairman and Chief Executive Officer of ACE since
November 1999 and as Chairman, President and Chief Executive Officer of ACE
from October 1994 through November 1999. Prior to joining ACE, Mr. Duperreault
had been employed with American International Group ("AIG") since 1973 and
served in various senior executive positions with AIG and its affiliates from
1978 until September 1994, most recently as Executive Vice President, Foreign
General Insurance and, concurrently, as Chairman and Chief Executive Officer of
American International Underwriters Inc., a subsidiary of AIG, from April 1994
to September 1994. Mr. Duperreault was President of American International
Underwriters Inc. from 1991 to April 1994, and Chief Executive Officer of AIG
affiliates in Japan and Korea from 1989 until 1991.

   Donald Kramer has been a director and Vice Chairman of ACE since July 1996
following the acquisition of Tempest Re. Mr. Kramer served as Chairman or Co-
Chairman of the Board of Tempest from its formation in September 1993 until
July 1996 and was President of Tempest Re from 1996 until 1999. Tempest Re was
acquired by the Company on July 1, 1996. Prior to the formation of Tempest Re,
he was President of Kramer Capital Corporation (venture capital investments)
from March to September 1993, President of Carteret Federal Savings Bank
(banking) from August 1991 to March 1993, Chairman of the Board of NAC Re
Corporation (reinsurance) from June 1985 to June 1993, Chairman of the Board
and Chief Executive Officer of KCP Holding Company (insurance) from July 1986
to August 1991 and of its affiliates, KCC Capital Managers (insurance
investments) and Kramer Capital Consultants, Inc. (insurance investments), as
well as Chairman of the Board of its subsidiary, National American Insurance
Company of California (insurance) from September 1988 to August 1991.

                                      S-15
<PAGE>

   Dominic J. Frederico has served as President and Chief Operating Officer of
ACE and Chairman of ACE INA since November 1999. Mr. Frederico has also served
as Chairman, President and Chief Executive Officer of ACE INA from May 1999
through November 1999. Mr. Frederico previously served as President of ACE
Bermuda since July 1997, Executive Vice President, Underwriting since December
1996, and as Executive Vice President, Financial Lines from January 1995 to
December 1996. Mr. Frederico served in various capacities at AIG in Europe and
the U.S. from 1982 to January 1995, most recently as Senior Vice President and
Chief Financial Officer of an AIG subsidiary, with multi-regional general
management responsibilities.

   John Charman has served as Chief Executive Officer of ACE Global Markets
since July 1998, and continues to act as Active Underwriter to Lloyd's
Syndicate 488/2488. Mr. Charman has been the Active Underwriter of Syndicate
488 since July 1986. Mr. Charman previously served as Managing Director of
Charman Underwriting Agencies Limited, and since 1994, as Chief Executive of
Tarquin Underwriters Limited, the corporate capital provider of Syndicate 2488.

   John Engestrom has served as President and Chief Executive Officer of
Tempest Re since May 1999. From 1997 to May 1999, Mr. Engestrom served as Chief
Executive Officer of Liberty Re in London. From 1992 to 1997, Mr. Engestrom
served as Group Chief Executive of Mercantile and General Reinsurance Company.
Mr. Engestrom began his reinsurance career at Skandia where he held various
positions including Chief Operating Officer Treaty Division Europe, Chief
Underwriting Officer North America and finally head of Reinsurance Skandia
Group worldwide.

   Jerome F. Jurschak joined ACE in December 1999 as President and Chief
Executive Officer of ACE Financial Services when ACE acquired Capital Re. Mr.
Jurschak previously served as Chief Executive Officer and President of Capital
Re from 1998 to 1999. Mr. Jurschak joined Capital Re in 1987 and served as its
Chief Underwriting Officer from 1987 to 1998. Prior to joining Capital Re, Mr
Jurschak was Senior Vice President and Chief Underwriting Officer of financial
guaranty reinsurance for Guaranty Holdings Corporation, a subsidiary of the Old
Republic Insurance Company.

   Dennis B. Reding joined ACE in 1998 as President and Chief Executive Officer
of ACE USA when the company acquired Westchester Specialty Group Inc. ("WSG").
In July 1999, his role as President and Chief Executive Officer of ACE USA
expanded to include the domestic operations of ACE INA. Mr. Reding previously
served as President and Chief Executive Officer of WSG, a position he held
since July 1993. Prior to joining WSG, Mr. Reding served in various senior
positions at Fireman's Fund Insurance Company.

   Gary Schmalzriedt has been President and Chief Executive Officer of ACE
Bermuda since July 1999. Since 1991, Mr. Schmalzriedt has served in several
senior capacities with CIGNA, most recently, since 1998, serving as Chairman
and Chief Executive Officer of CIGNA Europe. Mr. Schmalzriedt originally joined
CIGNA as Senior Vice President, Property Underwriting and later became
responsible for managing CIGNA International's property and casualty related
businesses. Prior to joining CIGNA, Mr. Schmalzriedt spent nearly 20 years in
various positions of increasing responsibility with AIG, including assignments
in the U.K. and South Africa and most recently, Senior Vice President and
Senior Underwriting Officer of American International Underwriters, where he
managed AIG's foreign operations.

   B. Kingsley Schubert has served as President and Chief Executive Officer of
ACE International since July 1999. Mr. Schubert previously served as President
of CIGNA International Property and Casualty since January 1999, and as
President of CIGNA International from February 1996 to January 1999. Mr.
Schubert served as Senior Vice President of CIGNA International (Asia-Pacific)
from March 1995 to February 1996, and as President of CIGNA Insurance Company
in Japan from June 1992 to February 1996.

   Christopher Z. Marshall joined ACE in 1986 and has held a number of senior
positions at ACE, most recently as Chief Financial Officer of ACE since
November 1992 and as Senior Vice President, Finance from January 1990 to
November 1992.

                                      S-16
<PAGE>

   Peter N. Mear has served as General Counsel and Secretary of ACE since April
1996. Mr. Mear served as Vice President and Claims Counsel of Aetna Casualty
and Surety Company from February 1991 to April 1996 and Counsel and Litigation
Section Head of Aetna Life & Casualty from September 1977 to February 1991.

   Keith P. White has served as Chief Administration Officer of ACE since July
1, 1997. Mr. White previously served as Senior Vice President, Administration
of ACE since January 1990.

   Robert A. Blee has served as Chief Accounting Officer of ACE since October
1998. Mr. Blee served as Group Controller of ACE from January 1997 to October
1998, Vice President--Finance of ACE from July 1996 to January 1997, Assistant
Vice President and Assistant Controller from October 1994 to July 1996 and
Chief Accountant from August 1993 to October 1994.

   John C. Burville has served as Chief Actuary of ACE since January 1992. Mr.
Burville served as Managing Actuarial Consultant with Tillinghast, Nelson &
Warren (Bermuda) Ltd. (management consulting and actuaries) from March 1986 to
December 1991.

   Timothy A. Boroughs joined ACE in June 2000 as President and Chief Executive
Officer of ACE Asset Management Inc. Mr. Boroughs previously served as the
Director of Fixed Income at Tudor Investment Corporation from 1997 until he
joined ACE. From 1976 to 1997, Mr. Boroughs held several positions at Fisher,
Frances Trees & Watts, a U.S. based institutional investor advisor, most
recently as Managing Partner and Director, Global Leveraged Investment
Activity.

                                      S-17
<PAGE>

                PRICE RANGE OF OUR ORDINARY SHARES AND DIVIDENDS

   Our ordinary shares are listed for trading on the NYSE under the symbol
"ACL". The following table sets forth on a per share basis the high and low
sales prices for consolidated trading in our ordinary shares as reported on the
NYSE and dividends for the quarters indicated, in each case as adjusted for the
three-for-one stock split of ACE's ordinary shares in March 1998.

<TABLE>
<CAPTION>
                                                            Ordinary Shares
                                                       -------------------------
                                                        High     Low   Dividends
                                                       ------- ------- ---------
<S>                                                    <C>     <C>     <C>
1998
First Quarter......................................... $40.938 $30.417   $0.08
Second Quarter........................................  40.313  24.438    0.08
Third Quarter.........................................  42.125  26.938    0.09
Fourth Quarter........................................  34.813  26.438    0.09

1999
First Quarter......................................... $33.625 $25.938   $0.09
Second Quarter........................................  34.875  27.375    0.09
Third Quarter.........................................  24.438  16.653    0.11
Fourth Quarter........................................  21.563  15.500    0.11

2000
First Quarter......................................... $22.875 $14.688   $0.11
Second Quarter........................................  30.438  20.500    0.13
Third Quarter (through September 6, 2000).............  36.688  27.563    0.13
</TABLE>

   The closing price of our ordinary shares on the NYSE on September 6, 2000
was $33.4375.

   As of September 4, 2000, there were approximately 2,200 holders of record of
our ordinary shares. This number excludes beneficial owners of ordinary shares
held in street name.

                                      S-18
<PAGE>

                                  UNDERWRITING

   Subject to the terms and conditions contained in the underwriting agreement
between us and Banc of America Securities, we have agreed to sell to Banc of
America Securities, and Banc of America Securities has agreed to purchase from
us, the ordinary shares offered hereby. In the underwriting agreement, Banc of
America Securities has agreed, subject to the terms and conditions set forth
therein, to purchase all of the ordinary shares offered hereby if any of them
is purchased.

   Banc of America Securities has informed us that it expects that all or a
substantial portion of the ordinary shares offered hereby will be sold to
purchasers in one or more transactions (which may involve block transactions)
on the NYSE or on other national securities exchanges on which the ordinary
shares are traded or otherwise. The distribution of the ordinary shares may
also be effected from time to time in special offerings, exchange distributions
and/or secondary distributions pursuant to and in accordance with the rules of
the NYSE or the other exchanges, in the over-the-counter market, in negotiated
transactions through the writing of options on the ordinary shares (whether the
options are listed on an options exchange or otherwise), or in a combination of
these methods at prevailing market prices or at negotiated prices. Banc of
America Securities may effect these transactions by selling ordinary shares to
or through dealers, and these dealers may receive compensation in the form of
discounts, concessions or commissions from Banc of America Securities and/or
the purchasers of the ordinary shares for whom they may act as agents or to
whom they may sell as principal.

   In connection with the sale of the ordinary shares, Banc of America
Securities may receive compensation from purchasers of the ordinary shares for
whom it may act as agent or to whom it may sell as principal in the form of
commissions or discounts, in each case in amounts which will not exceed those
customary in the types of transactions involved. Banc of America Securities and
any dealers that participate in the distribution of the ordinary shares may be
deemed to be underwriters, and any discounts received by them from us and any
compensation received by them on resale of the ordinary shares by them may be
deemed to be discounts and commissions, under the Securities Act.

Over-Allotment Option

   We have granted Banc of America Securities an option to purchase up to
1,250,000 additional ordinary shares to cover over-allotments. Banc of America
Securities may exercise this option at any time within 30 days after the date
of this prospectus supplement. If purchased, Banc of America Securities will
offer such additional shares on the same terms as those on which the 11,000,000
ordinary shares are being offered.

Short Positions

   Until the distribution of the ordinary shares is completed, rules of the SEC
may limit the ability of Banc of America Securities to bid for and purchase our
ordinary shares.

   In connection with the offering, Banc of America Securities may make short
sales of our ordinary shares and may purchase ordinary shares on the open
market to cover positions created by short sales. Short sales would involve the
sale by Banc of America Securities of a greater number of shares than they are
required to purchase in the offering, as set forth on the cover page of this
prospectus supplement. "Covered" short sales are sales made in an amount not
greater than the over-allotment option to purchase additional shares in the
offering (See "--Over-Allotment Option"). Banc of America Securities may close
out any covered short position by either exercising its over-allotment option
or purchasing shares in the open market. In determining the source of shares to
close out the covered short position, Banc of America Securities will consider,
among other things, the price of shares available for purchase in the open
market as compared to the price at which it may purchase shares through the
over-allotment option. "Naked" short sales are sales in excess of the over-
allotment option. Banc of America Securities must close out any naked short
position by purchasing shares in the open market. A naked short position is
more likely to be created if Banc of America Securities is concerned that there
may be downward pressure on the price of the shares in the open market after
pricing that could

                                      S-19
<PAGE>

adversely affect investors who purchase in the offering. Similar to other
purchase transactions, Banc of America's purchases to cover its short sales may
have the effect of raising or maintaining the market price of our ordinary
shares or preventing or retarding a decline in the market price of our ordinary
shares. As a result, the price of our ordinary shares may be higher than the
price that might otherwise exist in the open market.

   Neither we nor Banc of America Securities makes any representation or
prediction as to the direction or magnitude of any effect that the transactions
described above may have on the price of our ordinary shares. In addition,
neither we nor Banc of America Securities makes any representation that Banc of
America Securities will engage in such transactions or that such transactions,
once commenced, will not be discontinued without notice.

Indemnification

   We have agreed to indemnify Banc of America Securities against certain
liabilities, including liabilities under the Securities Act of 1933, as
amended, or if indemnification is not allowed, to contribute to payments it may
be required to make because of those liabilities.

Restrictions on Sales of Similar Securities

   We have agreed, with certain exceptions, for a period of 90 days from the
date hereof, without first obtaining the written consent of Banc of America
Securities not to offer, sell or contract to sell, pledge or otherwise dispose
of or file with the SEC a registration statement relating to any additional
ordinary shares or securities convertible into or exchangeable or exercisable
for additional ordinary shares or publicly disclose our intention to make any
such offer, sale, pledge, disposition or filing.

Other Relationships

   From time to time in the ordinary course of its business, Banc of America
Securities and its affiliates have engaged in and may in the future engage in
commercial and/or investment banking transactions with us. The trust preferred
securities referred to under "Use of Proceeds" are held by Intrepid Master
Funding Trust ("Intrepid"). Intrepid and Bank of America, N.A., an affiliate of
Bank of America Securities, are parties to a total return swap pursuant to
which Bank of America, N.A. assumes credit exposure in connection with
securities held by Intrepid.

                                      S-20
<PAGE>

     PROSPECTUS

                                $4,000,000,000

                                  ACE Limited

    Ordinary Shares, Preferred Shares, Depositary Shares, Debt Securities,
 Warrants to Purchase Ordinary Shares, Warrants to Purchase Preferred Shares,
      Warrants to Purchase Debt Securities, Stock Purchase Contracts and
                             Stock Purchase Units

                                ---------------

                             ACE INA Holdings Inc.

                                Debt Securities
                    Fully and Unconditionally Guaranteed by

                                  ACE Limited

                                ---------------

                              ACE Capital Trust I
                             ACE Capital Trust II
                             ACE Capital Trust III

                             Preferred Securities
Fully and Unconditionally Guaranteed to the Extent Provided in this Prospectus
                                      by

                                  ACE Limited

       ACE, ACE INA or the applicable ACE Trust will provide the specific
terms of these securities in supplements to this prospectus. The prospectus
supplements may also add, update or change information contained in this
prospectus. You should read this prospectus and any supplements carefully
before you invest.

                                ---------------

       ACE's ordinary shares are traded on the New York Stock Exchange under
the symbol "ACL."

       ACE's principal executive offices are located at: The ACE Building, 30
Woodbourne Avenue, Hamilton, HM 08, Bermuda, telephone number: (441) 295-5200.
The principal executive offices of ACE INA and each of the ACE Trusts are
located at: Two Liberty Place, 1601 Chestnut Street, Philadelphia,
Pennsylvania 19101, telephone (215) 761-1000.

                                ---------------

       Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if
this prospectus is truthful or complete. Any representation to the contrary is
a criminal offense.

       This prospectus may not be used to consummate sales of offered
securities unless accompanied by a prospectus supplement.

                 The date of this prospectus is April 6, 2000.
<PAGE>

      You should rely only on the information contained or incorporated by
reference in this prospectus or any supplement. None of ACE, ACE INA or any ACE
Trust has authorized anyone else to provide you with different information.
ACE, ACE INA and the ACE Trusts are offering these securities only in states
where the offer is permitted. You should not assume that the information in
this prospectus or any supplement is accurate as of any date other than the
date on the front of those documents. ACE's business, financial condition,
results of operations and prospects may have changed since that date.

      Except as expressly provided in an underwriting agreement, no offered
securities may be offered or sold in the Cayman Islands or Bermuda (although
offers may be made to persons in Bermuda from outside Bermuda) and offers may
only be accepted from persons resident in Bermuda, for Bermuda exchange control
purposes, where such offers have been delivered outside of Bermuda. Persons
resident in Bermuda, for Bermuda exchange control purposes, may require the
prior approval of the Bermuda Monetary Authority in order to acquire any
offered securities.

      In this prospectus, references to "dollar" and "$" are to United States
currency, and the terms "United States" and "U.S." mean the United States of
America, its states, its territories, its possessions and all areas subject to
its jurisdiction.

                             ABOUT THIS PROSPECTUS

      This prospectus is part of a registration statement that ACE, ACE INA and
the ACE Trusts filed with the Securities and Exchange Commission utilizing a
"shelf" registration process, relating to the ordinary shares, preferred
shares, depositary shares, debt securities, debt securities guarantee,
warrants, stock purchase contracts, stock purchase units, preferred securities
and preferred securities guarantees described in this prospectus. Under this
shelf process, ACE, ACE INA and the ACE Trusts may sell the securities
described in this prospectus in one or more offerings up to a total initial
offering price of $4,000,000,000. This prospectus provides you with a general
description of the securities ACE, ACE INA or an ACE Trust may offer. This
prospectus does not contain all of the information set forth in the
registration statement as permitted by the rules and regulations of the SEC.
For additional information regarding ACE, ACE INA, the ACE Trusts and the
offered securities, please refer to the registration statement. Each time ACE,
ACE INA or an ACE Trust sells securities, it will provide a prospectus
supplement that will contain specific information about the terms of that
offering. The prospectus supplement may also add, update or change information
contained in this prospectus. You should read both this prospectus and any
prospectus supplement together with additional information described under the
heading "Where You Can Find More Information."

                                       2
<PAGE>

                                  ACE LIMITED

      ACE is a holding company incorporated with limited liability in the
Cayman Islands and maintains its principal business office in Bermuda. Through
its Bermuda-based operating subsidiaries, ACE Bermuda Insurance Ltd., Corporate
Officers & Directors Assurance Ltd. and Tempest Reinsurance Company Limited,
and its Dublin, Ireland based subsidiaries, ACE Insurance Company Europe
Limited and ACE Reinsurance Company Europe Limited, ACE provides a broad range
of insurance and reinsurance products to a diverse group of international
clients. Through ACE INA and its subsidiaries, ACE provides a broad range of
insurance products to insureds in the United States and 46 other countries
worldwide. ACE also provides insurance products to a broad range of clients in
the United States through its U.S. based subsidiary, ACE USA, Inc. ACE also
indirectly owns four Lloyd's managing agencies, ACE UK Underwriting Limited,
ACE London Aviation Limited, ACE London Underwriters Limited and ACE
Underwriting Agencies Limited, and provides corporate capital to Lloyd's
syndicates under their management to support underwriting capacity.

      ACE was incorporated in August 1985. ACE's principal executive offices
are located at The ACE Building, 30 Woodbourne Avenue, Hamilton, HM 08,
Bermuda, and its telephone number is (441) 295-5200.

                                    ACE INA

      ACE INA is an indirect subsidiary of ACE that was formed in December 1998
to acquire and hold the international and domestic property and casualty
businesses of CIGNA Corporation. ACE INA is a U.S. holding company and has no
direct operations. ACE INA's principal asset is the capital stock of its
insurance subsidiaries. The principal executive offices of ACE INA are located
at Two Liberty Place, 1601 Chestnut Street, Philadelphia, Pennsylvania 19101
and its telephone number is (215) 761-1000.

                                       3
<PAGE>

                                 THE ACE TRUSTS

      Each ACE Trust is a statutory business trust created under Delaware law
pursuant to (1) a trust agreement executed by ACE, as original sponsor of the
ACE Trust, and the ACE Trustees for the ACE Trust and (2) the filing of a
certificate of trust with the Delaware Secretary of State on May 19, 1999. On
August 5, 1999, ACE assigned its rights and obligations as sponsor of each ACE
Trust to ACE INA. Each trust agreement will be amended and restated in its
entirety substantially in the form filed as an exhibit to the registration
statement of which this prospectus forms a part. Each restated trust agreement
will be qualified as an indenture under the Trust Indenture Act of 1939. Each
ACE Trust exists for the exclusive purposes of:

    .  issuing and selling the preferred securities and common securities
       that represent undivided beneficial interests in the assets of the
       ACE Trust,

    .  using the gross proceeds from the sale of the preferred securities
       and common securities to acquire a particular series of ACE INA
       subordinated debt securities, and

    .  engaging in only those other activities necessary, convenient or
       incidental to the issuance and sale of the preferred securities and
       common securities and purchase of the ACE INA subordinated debt
       securities.

      ACE INA will directly or indirectly own all of the common securities of
each ACE Trust. The common securities of an ACE Trust will rank equally, and
payments will be made thereon pro rata, with the preferred securities of that
ACE Trust, except that, if an event of default under the restated trust
agreement resulting from an event of default under the ACE INA subordinated
debt securities held by the ACE Trust has occurred and is continuing, the
rights of the holder of the common securities to payment in respect of
distributions and payments upon liquidation, redemption and otherwise will be
subordinated to the rights of the holders of the preferred securities. Unless
otherwise disclosed in the applicable prospectus supplement, ACE INA will,
directly or indirectly, acquire common securities in an aggregate liquidation
amount equal to at least 3% of the total capital of each ACE Trust. Each of the
ACE Trusts is a legally separate entity and the assets of one are not available
to satisfy the obligations of any of the others.

      Unless otherwise disclosed in the related prospectus supplement, each ACE
Trust has a term of approximately 55 years, but may dissolve earlier as
provided in the restated trust agreement of the ACE Trust. Unless otherwise
disclosed in the applicable prospectus supplement, each ACE Trust's business
and affairs will be conducted by the trustees (the "ACE Trustees") appointed by
ACE INA, as the direct or indirect holder of all of the common securities. ACE
INA, as the direct or indirect holder of the common securities, will be
entitled to appoint, remove or replace any of, or increase or reduce the number
of, the ACE Trustees of an ACE Trust, subject to the terms of the restated
trust agreement of the ACE Trust. The duties and obligations of the ACE
Trustees of an ACE Trust will be governed by the restated trust agreement of
the ACE Trust. Unless otherwise disclosed in the related prospectus supplement,
two of the ACE Trustees (the "Administrative Trustees") of each ACE Trust will
be persons who are employees or officers of or affiliated with ACE INA. One ACE
Trustee of each ACE Trust will be a financial institution (the "Property
Trustee") that is not affiliated with ACE INA and has a minimum amount of
combined capital and surplus of not less than $50,000,000, which shall act as
property trustee and as indenture trustee for the purposes of compliance with
the provisions of the Trust Indenture Act, pursuant to the terms set forth in
the applicable prospectus supplement. In addition, one ACE Trustee of each ACE
Trust (which may be the Property Trustee, if it otherwise meets the
requirements of applicable law) will have its principal place of business or
reside in the State of Delaware (the "Delaware Trustee"). ACE will pay all fees
and expenses related to each ACE Trust and the offering of preferred securities
and common securities.

      The office of the Delaware Trustee for each ACE Trust in the State of
Delaware is located at c/o Bank One Delaware, Inc., Three Christina Centre, 201
North Walnut Street, Wilmington, Delaware 19801. The principal executive
offices for each of the ACE Trusts are located at c/o ACE INA Holdings Inc.,
Two Liberty Place, 1601 Chestnut Street, Philadelphia, Pennsylvania 19101. The
telephone number of each of the ACE Trusts is (215) 761-1000.


                                       4
<PAGE>

                                USE OF PROCEEDS

      Unless otherwise disclosed in the applicable prospectus supplement, ACE
and ACE INA intend to use the net proceeds from the sale of the offered
securities to repay debt incurred to acquire the international and domestic
property and casualty businesses of CIGNA. Each ACE Trust will invest all
proceeds received from the sale of its preferred securities and common
securities in a particular series of subordinated debt securities of ACE INA,
which will use such funds to repay debt incurred to acquire the CIGNA
businesses.

    RATIO OF EARNINGS TO FIXED CHARGES AND PREFERRED SHARE DIVIDENDS OF ACE

      For purposes of computing the following ratios, earnings consist of net
income before income tax expense (excluding interest costs capitalized) plus
fixed charges to the extent that such charges are included in the determination
of earnings. Fixed charges consist of interest costs (including interest costs
capitalized) plus one-third of minimum rental payments under operating leases
(estimated by management to be the interest factor of such rentals). Because
ACE paid no preferred share dividends during any of the periods presented, the
ratio of earnings to combined fixed charges and preferred share dividends is
identical to the ratio of earnings to fixed charges for each of the periods
presented.

<TABLE>
<CAPTION>
                                      Three Months
                          Year Ended      Ended         Year Ended September
                         December 31, December 31,               30,
                         ------------ ---------------  ---------------------------
                             1999      1998     1997   1998  1997  1996  1995
                         ------------ ------   ------  ----  ----  ----  ----
<S>                      <C>          <C>      <C>     <C>   <C>   <C>   <C>   <C>
Ratio of Earnings to
 Fixed Charges..........     4.1x       48.4x    72.5x 22.4x 40.7x 32.3x 47.1x
Ratio of Earnings to
 Combined Fixed Charges
 and Preferred Share
 Dividends..............     4.1x       48.4x    72.5x 22.4x 40.7x 32.3x 47.1x
</TABLE>

      ACE INA and the ACE Trusts had no operations during the periods set forth
above.

                                       5
<PAGE>

                 GENERAL DESCRIPTION OF THE OFFERED SECURITIES

      ACE may from time to time offer under this prospectus, separately or
together:

    .ordinary shares,

    .preferred shares, which may be represented by depositary shares as
    described below,

    .unsecured senior or subordinated debt securities,

    .warrants to purchase ordinary shares,

    .warrants to purchase preferred shares,

    .warrants to purchase debt securities of ACE,

    .stock purchase contracts to purchase ordinary shares, and

    .  stock purchase units, each representing ownership of a stock purchase
       contract and, as security for the holder's obligation to purchase
       ordinary shares under the stock purchase contract, any of (1) debt
       securities of ACE INA, fully and unconditionally guaranteed by ACE,
       (2) debt obligations of third parties, including U.S. Treasury
       securities or (3) preferred securities of an ACE Trust.

      ACE INA may from time to time offer unsecured senior or subordinated debt
securities, which will be fully and unconditionally guaranteed by ACE.

      Each of ACE Capital Trust I, ACE Capital Trust II and ACE Capital Trust
III may offer preferred securities representing undivided beneficial interests
in their respective assets, which will be fully and unconditionally guaranteed
to the extent described in this prospectus by ACE.

      The aggregate initial offering price of the offered securities will not
exceed $4,000,000,000.

                        DESCRIPTION OF ACE CAPITAL STOCK

      The following is a summary of certain provisions of ACE's Memorandum of
Association and Articles of Association. Because this summary is not complete,
you should refer to ACE's Memorandum and Articles for complete information
regarding the provisions of the Memorandum and Articles, including the
definitions of some of the terms used below. Copies of the Memorandum and
Articles are incorporated by reference as exhibits to the registration
statement of which this prospectus forms a part. Whenever particular sections
or defined terms of the Memorandum and Articles are referred to, such sections
or defined terms are incorporated herein by reference, and the statement in
connection with which such reference is made is qualified in its entirety by
such reference.

      ACE's authorized share capital consists of two classes of shares: (1)
300,000,000 ordinary shares, par value $0.041666667 per share, of which
194,059,295 ordinary shares were issued and outstanding as of November 12, 1999
and (2) 10,000,000 other shares, none of which are outstanding.

Ordinary Shares

      The ordinary shares are listed on the New York Stock Exchange under the
symbol "ACL." The ordinary shares currently issued and outstanding are fully
paid and nonassessable. The ordinary shares offered by a prospectus supplement,
upon issuance against full consideration, will be fully paid and nonassessable.
There are no provisions of Cayman Islands law or the Memorandum or the Articles
which impose any limitation on the rights of shareholders to hold or vote
ordinary shares by reason of their not being residents of the Cayman Islands.

                                       6
<PAGE>

      Dividend Rights

      After all dividends on all classes or series of preferred shares have
been paid or declared and set apart for payment, holders of ordinary shares are
entitled to receive such dividends as may be declared from time to time by
ACE's Board of Directors (the "Board"), in its discretion, out of funds legally
available therefor.

      Liquidation

      In the event of any dissolution, liquidation or winding up of ACE,
whether voluntary or involuntary, after there shall have been paid or set aside
for payment to the holders of any outstanding shares ranking senior to the
ordinary shares as to distribution on liquidation, dissolution or winding up,
the full amounts to which they shall be entitled, the holders of the then
outstanding ordinary shares will be entitled to receive, pro rata according to
the number of ordinary shares registered in the names of such shareholders, any
remaining assets of ACE available for distribution to its shareholders;
provided, if, at such time, any holder of ordinary shares has any outstanding
debts, liabilities or engagements to or with ACE (whether presently payable or
not), either alone or jointly with any other person, whether a shareholder or
not (including, without limitation, any liability associated with the unpaid
purchase price of such ordinary shares), the liquidator appointed to oversee
the liquidation of ACE will deduct from the amount payable in respect of such
ordinary shares the aggregate amount of such debts, liabilities and engagements
and apply such amount to any of such holder's debts, liabilities or engagements
to or with ACE (whether presently payable or not). The liquidator may
distribute, in kind, to the holders of the ordinary shares remaining assets of
ACE or may sell, transfer or otherwise dispose of all or any part of such
remaining assets to any other corporation, trust or entity and receive payment
therefor in cash, shares or obligations of such other corporation, trust or
entity or any combination thereof, and may sell all or part of the
consideration so received, and may distribute the consideration received or any
balance or proceeds thereof to holders of the ordinary shares.

      Voting Rights

      The Articles provide that the quorum required for a general meeting of
shareholders is not less than six shareholders present in person or by proxy
holding at least 50% of the issued and outstanding shares entitled to vote at
such meeting. A quorum for considering a "special resolution" is 66 2/3% of the
issued and outstanding shares entitled to vote at such meeting. Subject to
applicable law and any provision of the Articles requiring a greater majority,
ACE may from time to time by special resolution alter or amend the Memorandum
or Articles; voluntarily liquidate, dissolve or wind-up its affairs; increase
its share capital; consolidate and divide all or any of its share capital;
subdivide the whole or any part of its share capital; reduce its share capital,
any capital redemption reserve fund, or any share premium account; or change
its name or alter its objects.

      Each holder of ordinary shares is entitled to one vote per share on all
matters submitted to a vote of shareholders at any such meeting, subject to the
10% voting limitation described below. All matters, including the election of
directors, voted upon at any duly held shareholders' meeting will be carried by
a majority of the votes cast at the meeting by shareholders represented in
person or by proxy, except (1) approval of a merger, consolidation or
amalgamation, or the sale, lease or exchange of all or substantially all of the
assets of ACE, which requires (in addition to any regulatory or court
approvals) the approval of at least 66 2/3% of the outstanding voting shares,
voting together as a single class, (2) approval of a special resolution, (3)
amendment of certain provisions of the Articles which require the approval of
at least 66 2/3% of the outstanding voting shares, voting together as a single
class and (4) as otherwise provided in the Articles. A special resolution
requires the approval of at least 66 2/3% of the votes cast by such
shareholders represented in person or by proxy at a duly convened meeting.

      The Articles provide that, except as otherwise required by law and
subject to the rights of the holders of any class or series of shares issued by
ACE having a preference over the ordinary shares as to dividends or upon
liquidation to elect directors in specified circumstances, extraordinary
general meetings of ACE's shareholders may be called only by (1) the directors
or (2) at the request in writing of shareholders owning at least 25% of the
outstanding shares generally entitled to vote.

                                       7
<PAGE>

      Each ordinary share has one vote, except that if, and so long as, the
"Controlled Shares" of any person constitute 10% or more of the issued ordinary
shares, the voting rights with respect to the controlled shares owned by such
person will be limited, in the aggregate, to a voting power of approximately
10%, pursuant to a formula specified in the Articles. "Controlled Shares" means
(1) all shares of ACE directly, indirectly or constructively owned by any
person within the meaning of Section 958 of the U.S. Internal Revenue Code of
1986, as amended (the "Code") and (2) all shares of ACE directly, indirectly or
beneficially owned by such person within the meaning of Section 13(d) of the
Exchange Act (including any shares owned by a group of persons as so defined
and including any shares that would otherwise be excluded by the provisions of
Section 13(d)(6) of the Exchange Act).

      The ordinary shares have noncumulative voting rights, which means that
the holders of a majority of the ordinary shares may elect all of ACE's
directors and, in such event, the holders of the remaining shares will not be
able to elect any directors. The Board is presently divided into three classes,
two of which have four directors and one of which has five directors. At
present, each class is elected for a three-year term, with the result that
shareholders will not vote for the election of a majority of directors in any
single year. Directors may be removed without cause only by the affirmative
vote of the holders of at least 66 2/3% of the outstanding shares generally
entitled to vote, voting together as a single class, at a meeting of
shareholders. Directors may be removed with cause by the affirmative vote of
the holders of a majority of the votes cast at a meeting of shareholders.

      This classified board provision could prevent a party who acquires
control of a majority of the outstanding voting power from obtaining control of
the Board until the second annual shareholders meeting following the date the
acquiror obtains the controlling share interest. The classified board provision
could have the effect of discouraging a potential acquiror from making a tender
offer or otherwise attempting to obtain control of ACE and could thus increase
the likelihood that incumbent directors will retain their positions.

      Preemptive Rights

      No holder of ordinary shares, solely by reason of such holding, has or
will have any preemptive right to subscribe to any additional issue of shares
of any class or series nor to any security convertible into such shares.

Other Classes or Series of Shares

      The Articles authorize the directors to create and issue one or more
other classes or series of shares and to determine the rights and preferences
of each such class or series, to the extent permitted by the Articles and
applicable law. Among other rights, the directors may determine:

    .  the number of shares of that class or series and the distinctive
       designation thereof;

    .  the voting powers, full or limited, if any, of the shares of that
       class or series;

    .  the dividend rights of the shares of that class or series, whether
       dividends will be cumulative and, if so, from which date or dates and
       the relative rights or priority, if any, of payment of dividends on
       shares of that class or series and any limitations, restrictions or
       conditions on the payment of dividends;

    .  the relative amounts, and the relative rights or priority, if any, of
       payment in respect of shares of that class or series, which the
       holders of the shares of that class or series will be entitled to
       receive upon any liquidation, dissolution or winding up of ACE;

    .  the terms and conditions (including the price or prices, which may
       vary under different conditions and at different redemption dates),
       if any, upon which all or any part of the shares of that class or
       series may be redeemed, and any limitations, restrictions or
       conditions on such redemption;

                                       8
<PAGE>

    .  the terms, if any, of any purchase, retirement or sinking fund to be
       provided for the shares of that class or series;

    .  the terms, if any, upon which the shares of that class or series will
       be convertible into or exchangeable for shares of any other class,
       classes or series, or other securities, whether or not issued by ACE;

    .  the restrictions, limitations and conditions, if any, upon the
       issuance of indebtedness of ACE so long as any shares of that class
       or series are outstanding; and

    .  any other preferences and relative, participating, optional or other
       rights and limitations not inconsistent with applicable law or the
       Articles.

Preferred Shares

      From time to time, pursuant to the authority granted to the directors by
the Articles to create other classes or series of shares, the Board may create
and issue one or more classes or series of preferred shares, setting forth the
rights and preferences of each such class or series in a Certificate of
Designation, Preferences and Rights. The preferred shares, upon issuance
against full consideration, will be fully paid and nonassessable. The
particular rights and preferences of the preferred shares offered by any
prospectus supplement and the extent, if any, to which the general provisions
described below may apply to the offered preferred shares, will be described in
the prospectus supplement. Because the following summary of the terms of
preferred shares is not complete, you should refer to the Memorandum, the
Articles and the applicable Certificate of Designation, Preferences and Rights
for complete information regarding the terms of the class or series of
preferred shares described in a prospectus supplement. Whenever particular
sections or defined terms of the Memorandum, the Articles and the applicable
Certificate of Designation, Preferences and Rights are referred to, such
sections or defined terms are incorporated herein by reference, and the
statement in connection with which such reference is made is qualified in its
entirety by such reference.

      A prospectus supplement will specify the terms of a particular class or
series of preferred shares as follows:

    .  the number of shares to be issued and sold and the distinctive
       designation thereof;

    .  the voting powers, full or limited, if any, of the preferred shares;

    .  the dividend rights of the preferred shares, whether dividends will
       be cumulative and, if so, from which date or dates and the relative
       rights or priority, if any, of payment of dividends on preferred
       shares and any limitations, restrictions or conditions on the payment
       of dividends on the preferred shares and the ordinary shares;

    .  the relative amounts, and the relative rights or priority, if any, of
       payment in respect of preferred shares, which the holders of the
       preferred shares will be entitled to receive upon any liquidation,
       dissolution or winding up of ACE;

    .  the terms and conditions (including the price or prices, which may
       vary under different conditions and at different redemption dates),
       if any, upon which all or any part of the preferred shares may be
       redeemed, and any limitations, restrictions or conditions on such
       redemption;

    .  the terms, if any, of any purchase, retirement or sinking fund to be
       provided for the preferred shares;

    .  the terms, if any, upon which the preferred shares will be
       convertible into or exchangeable for shares of any other class,
       classes or series, or other securities, whether or not issued by ACE;

    .  the restrictions, limitations and conditions, if any, upon the
       issuance of indebtedness of ACE so long as any preferred shares are
       outstanding; and

    .  any other preferences and relative, participating, optional or other
       rights and limitations not inconsistent with applicable law, the
       Memorandum or the Articles.

                                       9
<PAGE>

      Dividends

      The holders of preferred shares will be entitled to receive dividends at
the rate set by the Board, payable on specified dates each year for the
respective dividend periods ending on such dates ("dividend periods"), when and
as declared by the Board. Such dividends will accrue on each preferred share
from the first day of the dividend period in which such share is issued or from
such other date as the Board may fix for such purpose. All dividends on
preferred shares will be cumulative so that if ACE does not pay or set apart
for payment the dividend, or any part thereof, on the issued and outstanding
preferred shares for any dividend period, the deficiency in the dividend on the
preferred shares must thereafter be fully paid or declared and set apart for
payment, but without interest, before any dividend may be paid or declared and
set apart for payment on the ordinary shares. The holders of preferred shares
will not be entitled to participate in any other or additional earnings or
profits of ACE, except for such premiums, if any, as may be payable in case of
redemption or liquidation, dissolution or winding up of ACE.

      Any dividend paid upon the preferred shares at a time when any accrued
dividends for any prior dividend period are delinquent will be expressly
declared to be in whole or partial payment of the accrued dividends to the
extent thereof, beginning with the earliest dividend period for which dividends
are then wholly or partly delinquent, and will be so designated to each
shareholder to whom payment is made.

      No dividends will be paid upon any shares of any class or series of
preferred shares for a current dividend period unless there will have been paid
or declared and set apart for payment dividends required to be paid to the
holders of each other class or series of preferred shares for all past dividend
periods of such other class or series. If any dividends are paid on any of the
preferred shares with respect to any past dividend period at any time when less
than the total dividends then accumulated and payable for all past dividend
periods on all of the preferred shares then outstanding are to be paid or
declared and set apart for payment, then the dividends being paid will be paid
on each class or series of preferred shares in the proportions that the
dividends then accumulated and payable on each class or series for all past
dividend periods bear to the total dividends then accumulated and payable for
all past dividend periods on all outstanding preferred shares.

      Liquidation, Dissolution or Winding Up

      In case of voluntary or involuntary liquidation, dissolution or winding
up of ACE, the holders of each class or series of preferred shares will be
entitled to receive out of the assets of ACE in money or money's worth the
liquidation preference with respect to that class or series of preferred
shares, together with all accrued but unpaid dividends thereon (whether or not
earned or declared), before any of such assets will be paid or distributed to
holders of ordinary shares. In case of voluntary or involuntary liquidation,
dissolution or winding up of ACE, if the assets are insufficient to pay the
holders of all of the classes or series of preferred shares then outstanding
the full amounts to which they may be entitled, the holders of each outstanding
class or series of preferred shares will share ratably in such assets in
proportion to the amounts which would be payable with respect to such class or
series if all amounts payable thereon were paid in full. The consolidation or
merger of ACE with or into any other corporation, or a sale of all or any part
of its assets, will not be deemed a liquidation, dissolution or winding up of
ACE within the meaning of this paragraph.

      Redemption

      Except as otherwise provided with respect to a particular class or series
of preferred shares, the following general redemption provisions will apply to
each class or series of preferred shares.

      On or prior to the date fixed for redemption of a particular class or
series of preferred shares or any part thereof as specified in the notice of
redemption for such class or series, ACE will deposit adequate funds for such
redemption, in trust for the account of holders of such class or series, with a
bank or trust company that has an office in the United States, and that has, or
is an affiliate of a bank or trust company that has, capital and surplus of at
least $50,000,000. If the name and address of such bank or trust company and
the deposit of

                                       10
<PAGE>

or intent to deposit the redemption funds in such trust account have been
stated in the redemption notice, then from and after the mailing of the notice
and the making of such deposit the shares of the class or series called for
redemption will no longer be deemed to be outstanding for any purpose
whatsoever, and all rights of the holders of such shares in or with respect to
ACE will cease and terminate except only the right of the holders of the shares
(1) to transfer such shares prior to the date fixed for redemption, (2) to
receive the redemption price of such shares, including accrued but unpaid
dividends to the date fixed for redemption, without interest, upon surrender of
the certificate or certificates representing the shares to be redeemed, and (3)
on or before the close of business on the fifth day preceding the date fixed
for redemption to exercise privileges of conversion, if any, not previously
expired. Any moneys so deposited by ACE which remain unclaimed by the holders
of the shares called for redemption and not converted will, at the end of six
years after the redemption date, be paid to ACE upon its request, after which
repayment the holders of the shares called for redemption can no longer look to
such bank or trust company for the payment of the redemption price but must
look only to ACE for the payment of any lawful claim for such moneys which
holders of such shares may still have. After such six-year period, the right of
any shareholder or other person to receive such payment may be forfeited in the
manner and with the effect provided under Cayman Islands law. Any portion of
the moneys so deposited by ACE, in respect of preferred shares called for
redemption that are converted into ordinary shares, will be repaid to ACE upon
its request.

      In case of redemption of only a part of a class or series of preferred
shares, ACE will designate by lot, in such manner as the Board may determine,
the shares to be redeemed, or will effect such redemption pro rata.

      Conversion Rights

      Except as otherwise provided with respect to a particular class or series
of preferred shares, the following general conversion provisions will apply to
each class or series of preferred shares that is convertible into ordinary
shares.

      All ordinary shares issued upon conversion will be fully paid and
nonassessable, and will be free of all taxes, liens and charges with respect to
the issue thereof except taxes, if any, payable by reason of issuance in a name
other than that of the holder of the shares converted and except as otherwise
provided by applicable law or the Articles.

      The number of ordinary shares issuable upon conversion of a particular
class or series of preferred shares at any time will be the quotient obtained
by dividing the aggregate conversion value of the shares of such class or
series surrendered for conversion, by the conversion price per share of
ordinary shares then in effect for such class or series. ACE will not be
required, however, upon any such conversion, to issue any fractional share of
ordinary shares, but instead ACE will pay to the holder who would otherwise be
entitled to receive such fractional share if issued, a sum in cash equal to the
value of such fractional share based on the last reported sale price per
ordinary share on the NYSE at the date of determination. Preferred shares will
be deemed to have been converted as of the close of business on the date of
receipt at the office of the transfer agent of the certificates, duly endorsed,
together with written notice by the holder of his election to convert the
shares.

      The basic conversion price per ordinary share for a class or series of
preferred shares, as fixed by the Board, will be subject to adjustment from
time to time as follows:

    .  In case ACE (1) pays a dividend or makes a distribution to all
       holders of outstanding ordinary shares as a class in ordinary shares,
       (2) subdivides or splits the outstanding ordinary shares into a
       larger number of shares or (3) combines the outstanding ordinary
       shares into a smaller number of shares, the basic conversion price
       per ordinary share in effect immediately prior to that event will be
       adjusted retroactively so that the holder of each outstanding share
       of each class or series of preferred shares which by its terms is
       convertible into ordinary shares will thereafter be entitled to
       receive upon the conversion of such share the number of ordinary
       shares which that holder would have owned and been entitled to
       receive after the happening of any of the events described above

                                       11
<PAGE>

       had such share of such class or series been converted immediately
       prior to the happening of that event. An adjustment made pursuant to
       this clause will become effective retroactively immediately after
       such record date in the case of a dividend or distribution and
       immediately after the effective date in the case of a subdivision,
       split or combination. Such adjustments will be made successively
       whenever any event described in this clause occurs.

    .  In case ACE issues to all holders of ordinary shares as a class any
       rights or warrants enabling them to subscribe for or purchase
       ordinary shares at a price per share less than the current market
       price per ordinary share at the record date for determination of
       shareholders entitled to receive such rights or warrants, the basic
       conversion price per ordinary share in effect immediately prior
       thereto for each class or series of preferred shares which by its
       terms is convertible into ordinary shares will be adjusted
       retroactively by multiplying such basic conversion price by a
       fraction, of which the numerator will be the sum of number of
       ordinary shares outstanding at such record date and the number of
       ordinary shares which the aggregate exercise price (before deduction
       of underwriting discounts or commissions and other expenses of ACE in
       connection with the issue) of the total number of shares so offered
       for subscription or purchase would purchase at such current market
       price per share and of which the denominator will be the sum of the
       number of ordinary shares outstanding at such record date and the
       number of additional ordinary shares so offered for subscription or
       purchase. An adjustment made pursuant to this clause will become
       effective retroactively immediately after the record date for
       determination of shareholders entitled to receive such rights or
       warrants. Such adjustments will be made successively whenever any
       event described in this clause occurs.

    .  In case ACE distributes to all holders of ordinary shares as a class
       evidences of indebtedness or assets (other than cash dividends), the
       basic conversion price per ordinary share in effect immediately prior
       thereto for each class or series of preferred shares which by its
       terms is convertible into ordinary shares will be adjusted
       retroactively by multiplying such basic conversion price by a
       fraction, of which the numerator will be the difference between the
       current market price per ordinary share at the record date for
       determination of shareholders entitled to receive such distribution
       and the fair value (as determined by the Board) of the portion of the
       evidences of indebtedness or assets (other than cash dividends) so
       distributed applicable to one ordinary share and of which the
       denominator will be the current market price per ordinary share. An
       adjustment made pursuant to this clause will become effective
       retroactively immediately after such record date. Such adjustments
       will be made successively whenever any event described in this clause
       occurs.

      For the purpose of any computation under the last clause above, the
current market price per ordinary share on any date will be deemed to be the
average of the high and low sales prices of the ordinary shares, as reported
in the New York Stock Exchange--Composite Transactions (or such other
principal market quotation as may then be applicable to the ordinary shares)
for each of the 30 consecutive trading days commencing 45 trading days before
such date.

      No adjustment will be made in the basic conversion price for any class
or series of preferred shares in effect immediately prior to such computation
if the amount of such adjustment would be less than fifty cents. However, any
adjustments which by reason of the preceding sentence are not required to be
made will be carried forward and taken into account in any subsequent
adjustment. Notwithstanding anything to the contrary, any adjustment required
for purposes of making the computations described above will be made not later
than the earlier of (1) three years after the effective date described above
for such adjustment or (2) the date as of which such adjustment would result
in an increase or decrease of at least 3% in the aggregate number of ordinary
shares issued and outstanding on the first date on which an event occurred
which required the making of a computation described above. All calculations
will be made to the nearest cent or to the nearest 1/100th of a share, as the
case may be.

      In the case of any capital reorganization or reclassification of
ordinary shares, or if ACE consolidates with or merges into, or sells or
disposes of all or substantially all of its property and assets to, any other

                                      12
<PAGE>

corporation, proper provisions will be made as part of the terms of such
capital reorganization, reclassification, consolidation, merger or sale that
any shares of a particular class or series of preferred shares at the time
outstanding will thereafter be convertible into the number of shares of stock
or other securities or property to which a holder of the number of ordinary
shares deliverable upon conversion of such preferred shares would have been
entitled upon such capital reorganization, reclassification, consolidation or
merger.

      No dividend adjustment with respect to any preferred shares or ordinary
shares will be made in connection with any conversion.

      Whenever there is an issue of additional ordinary shares requiring a
change in the conversion price as provided above, and whenever there occurs any
other event which results in a change in the existing conversion rights of the
holders of shares of a class or series of preferred shares, ACE will file with
its transfer agent or agents, a statement signed by the Chairman, President and
Chief Executive Officer or by any Executive Officer of ACE, describing
specifically such issue of additional ordinary shares or such other event (and,
in the case of a capital reorganization, reclassification, consolidation or
merger, the terms thereof) and the actual conversion prices or basis of
conversion as changed by such issue or event and the change, if any, in the
securities issuable upon conversion. Whenever there are issued by ACE to all
holders of ordinary shares as a class any rights or warrants enabling them to
subscribe for or purchase ordinary shares, ACE will also file in like manner a
statement describing the same and the consideration it will receive therefrom.
The statement so filed will be open to inspection by any holder of record of
shares of any class or series of preferred shares.

      ACE will at all times have authorized and will at all times reserve and
set aside a sufficient number of duly authorized ordinary shares for the
conversion of all shares of all then outstanding classes or series of preferred
shares which are convertible into ordinary shares.

      Reissuance of Shares

      Any preferred shares retired by purchase, redemption, through conversion,
or through the operation of any sinking fund or redemption or purchase account,
will have the status of authorized but unissued preferred shares, and may be
reissued as part of the same class or series or may be reclassified and
reissued by the Board in the same manner as any other authorized and unissued
preferred shares.

      Voting Rights

      Except as indicated below or as otherwise required by applicable law, the
holders of preferred shares will have no voting rights.

      Whenever dividends payable on any class or series of preferred shares are
in arrears in an aggregate amount equivalent to six full quarterly dividends on
all of the preferred shares of that class or series then outstanding, the
holders of preferred shares of that class or series will have the exclusive and
special right, voting separately as a class, to elect two directors of ACE, and
the number of directors constituting the Board will be increased to the extent
necessary to effectuate such right. Whenever such right of the holders of any
class or series of the preferred shares has vested, such right may be exercised
initially either at an extraordinary meeting of the holders of such class or
series of the preferred shares, or at any annual meeting of shareholders, and
thereafter at annual meetings of shareholders. The right of the holders of any
class or series of the preferred shares voting separately as a class to elect
members of the Board will continue until such time as all dividends accumulated
on such class or series of the preferred shares have been paid in full, at
which time that special right will terminate, subject to revesting in the event
of each and every subsequent default in an aggregate amount equivalent to six
full quarterly dividends.

      At any time when such special voting power has vested in the holders of
any class or series of the preferred shares as described in the preceding
paragraph, a proper officer of ACE will, upon the written request of the
holders of record of at least 10% of such class or series of the preferred
shares then outstanding addressed to the Secretary of ACE, call an
extraordinary meeting of the holders of such class or series of the preferred
shares for the purpose of electing directors. Such meeting will be held at the
earliest practicable date

                                       13
<PAGE>

in such place as may be designated pursuant to the Articles (or if there be no
designation, at the principal office of ACE in Hamilton, Bermuda). If such
meeting shall not be called by the proper officers of ACE within 20 days after
the Secretary of ACE has been personally served with such request, or within 30
days after mailing the same within the United States by registered or certified
mail addressed to the Secretary of ACE at its principal office, then the
holders of record of at least 10% of such class or series of the preferred
shares then outstanding may designate in writing one of their number to call
such meeting at ACE's expense, and such meeting may be called by such person so
designated upon the notice required for annual meetings of shareholders and
will be held in Hamilton, Bermuda. Any holder of such class or series of
preferred shares so designated will have access to the stock books of ACE for
the purpose of causing meetings of shareholders to be called pursuant to these
provisions. Notwithstanding the foregoing, no such extraordinary meeting will
be called during the period within 90 days immediately preceding the date fixed
for the next annual meeting of shareholders.

      At any annual or extraordinary meeting at which the holders of any class
or series of the preferred shares have the special right, voting separately as
a class, to elect directors as described above, the presence, in person or by
proxy, of the holders of 33 1/3% of such class or series of the preferred
shares will be required to constitute a quorum of such class or series for the
election of any director by the holders of such class or series, voting as a
class. At any such meeting or adjournment thereof, (1) the absence of a quorum
of such class or series of the preferred shares will not prevent the election
of directors other than those to be elected by such class or series of the
preferred shares, voting as a class, and the absence of a quorum for the
election of such other directors will not prevent the election of the directors
to be elected by such class or series of the preferred shares, voting as a
class, and (2) in the absence of either or both such quorums, a majority of the
holders present in person or by proxy of any class or series of stock for which
a quorum is lacking will have power to adjourn the meeting for the election of
directors which they are entitled to elect, from time to time until a quorum
shall be present, without notice other than announcement at the meeting.

      During any period in which the holders of any class or series of the
preferred shares have the right to vote as a class for directors as described
above, any vacancies in the Board will be filled only by vote of a majority
(even if that be only a single director) of the remaining directors theretofore
elected by the holders of the class or series of stock which elected the
directors whose office shall have become vacant. During such period the
directors so elected by the holders of any class or series of the preferred
shares will continue in office (1) until the next succeeding annual meeting or
until their successors, if any, are elected by such holders and qualify or (2)
unless required by applicable law to continue in office for a longer period,
until termination of the right of the holders of such class or series of the
preferred shares to vote as a class for directors, if earlier. If and to the
extent permitted by applicable law, immediately upon any termination of the
right of the holders of any class or series of the preferred shares to vote as
a class for directors as provided herein, the term of office of the directors
then in office so elected by the holders of such class or series will
terminate.

      Whether or not ACE is being wound up, the rights attached to any class or
series of preferred shares may only be varied with the consent in writing of
the holders of three-fourths of the issued shares of that class or series, or
with the sanction of a special resolution approved by at least 66 2/3% of the
votes cast by the holders of the shares of that class or series at a duly
convened meeting where at least one-third of the issued shares of that class or
series are represented, either in person or by proxy. The rights attached to
any class or series of preferred shares will not be deemed to be varied by the
creation or issue of any shares or any securities convertible into or
evidencing the right to purchase shares ranking prior to or equally with such
class or series of the preferred shares with respect to the payment of
dividends or of assets upon liquidation, dissolution or winding up. Holders of
preferred shares are not entitled to vote on any amalgamation, consolidation,
merger or statutory share exchange, except to the extent that such a
transaction would vary the rights attached to any class or series of preferred
shares, in which case any such variation is subject to the approval process
described above. Holders of preferred shares are not entitled to vote on any
sale of all or substantially all of the assets of ACE.

      On any item on which the holders of the preferred shares are entitled to
vote, such holders will be entitled to one vote for each preferred share held.

                                       14
<PAGE>

      Restrictions in Event of Default in Dividends on Preferred Shares

      If at any time ACE has failed to pay dividends in full on the preferred
shares, thereafter and until dividends in full, including all accrued and
unpaid dividends for all past quarterly dividend periods on the preferred
shares outstanding, shall have been declared and set apart in trust for payment
or paid, or if at any time ACE has failed to pay in full amounts payable with
respect to any obligations to retire preferred shares, thereafter and until
such amounts shall have been paid in full or set apart in trust for payment (1)
ACE, without the affirmative vote or consent of the holders of at least 66 2/3%
of the preferred shares at the time outstanding given in person or by proxy,
either in writing or by resolution adopted at an extraordinary meeting called
for the purpose, at which the holders of the preferred shares shall vote
separately as a class, regardless of class or series, may not redeem less than
all of the preferred shares at such time outstanding; (2) ACE may not purchase
any preferred shares except in accordance with a purchase offer made in writing
to all holders of preferred shares of all classes or series upon such terms as
the Board in its sole discretion after consideration of the respective annual
dividend rate and other relative rights and preferences of the respective
classes or series, will determine (which determination will be final and
conclusive) will result in fair and equitable treatment among the respective
classes or series; provided that (a) ACE, to meet the requirements of any
purchase, retirement or sinking fund provisions with respect to any class or
series, may use shares of such class or series acquired by it prior to such
failure and then held by it as treasury stock and (b) nothing will prevent us
from completing the purchase or redemption of preferred shares for which a
purchase contract was entered into for any purchase, retirement or sinking fund
purposes, or the notice of redemption of which was initially mailed, prior to
such failure; and (3) ACE may not redeem, purchase or otherwise acquire, or
permit any subsidiary to purchase or acquire any shares of any other class of
stock of ACE ranking junior to the preferred shares as to dividends and upon
liquidation.

      Preemptive Rights

      No holder of preferred shares, solely by reason of such holding, has or
will have any preemptive right to subscribe to any additional issue of shares
of any class or series nor to any security convertible into such shares.

Transfer Agent

      ACE's registrar and transfer agent for the ordinary shares and the
preferred shares is The Bank of New York.

Transfer of Shares

      The Articles contain various provisions affecting the transferability of
ACE's shares. Under the Articles, the Board has absolute discretion to decline
to register a transfer of shares (1) unless a registration statement under the
Securities Act is in effect with respect to such shares or a written opinion
from counsel acceptable to the directors is obtained to the effect that such
registration is not required or (2) if the Board determines that such transfer
would result in a person having controlled shares that constitute 10% or more
of any class or series of ACE's issued shares. The Board also has absolute
discretion to decline to register any transfer of shares. The Board has waived
its right to decline to register any transfer of shares which have been traded
in the public market (including the ordinary and preferred shares offered by a
prospectus supplement) or which were outstanding immediately prior to ACE's
initial public offering.

      Maples and Calder, ACE's Cayman Islands counsel, has advised it that
while the precise form of the restrictions on transfers contained in the
Articles is untested, as a matter of general principle, restrictions on
transfers are enforceable under Cayman Islands law and are not uncommon. The
transferor of such shares will be deemed to own such shares for dividend,
voting and reporting purposes until a transfer of such shares has been
registered on our stock transfer records.

      The restrictions on voting and ownership of more than 10% of any class or
series of our issued shares described above, as well as the provisions
discussed below under "Anti-Takeover Effects of Articles of Association" and
"Shareholder Rights Plan," may have the effect of discouraging an attempt to
obtain control of ACE through certain actions.

                                       15
<PAGE>

      The Articles also provide that the Board may suspend the registration of
transfer for such periods as the Board may determine, but shall not suspend the
registration of transfer for more than 45 days in any year.

Lloyd's Related Requirements

      Under Lloyd's regulations as currently in effect, any person who (with
any associates) beneficially holds 10% or more of the votes or economic
interest in ACE or who controls decisions by ACE's Board is deemed to be a
"controller" of any ACE subsidiary that is a Lloyd's corporate member or
Lloyd's managing agent. Lloyd's imposes an absolute prohibition on any company
being a 10% controller of a Lloyd's corporate member or Lloyd's managing agent
without first notifying Lloyd's and receiving their consent. This prohibition
is qualified in respect of a person who breaches the 20%, 33%, 50% or majority
controller thresholds in that the Lloyd's corporate member or Lloyd's managing
agent must do all that lies within its powers to comply with Lloyd's
requirements. In these latter circumstances, this essentially means that notice
must have been given to the Council of Lloyd's that the relevant threshold will
be exceeded and that the Council of Lloyd's has not objected. Lloyd's requires
each "controller" of a Lloyd's corporate member or Lloyd's managing agent to
execute and deliver a declaration and undertaking to Lloyd's containing
representations concerning the absence of criminal activities, censure,
insolvency, civil liabilities and government investigations, etc., and
submitting to the jurisdiction of the English courts. Any person that becomes
the owner of 10% (or subsequently 20%, 33%, 50% or a majority) of the ordinary
shares would have to deliver this declaration and undertaking to Lloyd's in the
form prescribed by Lloyd's, unless Lloyd's exempts such person from this
requirement. Lloyd's regulations give Lloyd's the right to withhold consent to
a person becoming a controller of a Lloyd's corporate member, even where the
declaration and undertaking has been provided, if Lloyd's, in its discretion,
does not consider such person to be "fit and proper."

      In addition under English law, if any person who is connected with a
Lloyd's broker holds or subsequently becomes the holder of more than 5% of the
ordinary shares in ACE, that Lloyd's broker risks losing its Lloyd's license.
For these purposes, a person is treated as connected with a Lloyd's broker if
that person is the subsidiary or holding company of a corporate Lloyd's broker
or a subsidiary of any such holding company (all being regarded as related
companies) or a director of such a Lloyd's broker or any related company that
controls (a test based on one-third voting rights or control of the Board) or
is controlled by such a Lloyd's broker or any related company or, if the
Lloyd's broker is a partnership, any person who is a partner in or who controls
or is controlled by (on a similar test) such a Lloyd's broker or any company
which is controlled by a partner in such a Lloyd's broker or any related
company of any such partner or any director of any such controlled or related
company.

Lien on Shares

      The Articles provide that ACE will have a first lien on all shares for
all debts, liabilities or engagements to or with ACE (whether presently payable
or not) by the holder of such shares, except for shares declared to be exempt
by the Board. This lien would extend to the payment of dividends or other money
payable in respect of any ordinary shares or preferred shares subject to the
lien. The Articles also provide that the directors may deduct from any dividend
payable to a shareholder all sums of money presently payable by such
shareholder to ACE on any account. The Board has exempted from these provisions
the ordinary and preferred shares offered by a prospectus supplement.

Anti-Takeover Effects of Articles of Association

      The Articles contain certain provisions that make it more difficult to
acquire control of ACE by means of a tender offer, open market purchase, a
proxy fight or otherwise. These provisions, as well as the shareholder rights
plan described under "Shareholder Rights Plan" below, are designed to encourage
persons seeking to acquire control of ACE to negotiate with its directors. The
directors believe that, as a general rule, the interests of its shareholders
would be best served if any change in control results from negotiations with
the directors.

                                       16
<PAGE>

The directors would negotiate based upon careful consideration of the proposed
terms, such as the price to be paid to shareholders, the form of consideration
to be paid and the anticipated tax effects of the transaction. However, these
provisions could have the effect of discouraging a prospective acquiror from
making a tender offer or otherwise attempting to obtain control of ACE. To the
extent these provisions discourage takeover attempts, they could deprive
shareholders of opportunities to realize takeover premiums for their shares or
could depress the market price of the shares.

      In addition to those provisions of the Articles discussed above, set
forth below is a description of other material provisions of the Articles.
Because the following description is intended as a summary only and is
therefore not complete, you should refer to the Articles, which are
incorporated by reference as an exhibit to the registration statement of which
this prospectus forms a part, for complete information regarding these
provisions.

      No Shareholder Action by Written Consent

      The Articles provide that any action required or permitted to be taken by
ACE's shareholders must be taken at a duly called annual general or
extraordinary general meeting of its shareholders and may not be taken by
consent in writing or otherwise.

      The affirmative vote of the holders of at least 66-2/3% of the
outstanding shares generally entitled to vote, voting together as a single
class, is required to amend or repeal, or adopt any provision inconsistent
with, this provision of the Articles.

      Availability of Shares of Capital Stock for Future Issuances

      The availability of shares for issue by ACE's directors without further
action by shareholders (except as may be required by applicable stock exchange
requirements) could be viewed as enabling the directors to make more difficult
a change in control of ACE, including by issuing warrants or rights to acquire
shares to discourage or defeat unsolicited stock accumulation programs and
acquisition proposals and by issuing shares in a private placement or public
offering to dilute or deter stock ownership of persons seeking to obtain
control of ACE.

      Shareholder Proposals

      The Articles provide that if a shareholder desires to submit a proposal
for consideration at an annual general meeting or extraordinary general
meeting, or to nominate persons for election as directors, written notice of
such shareholder's intent to make such a proposal or nomination must be given
and received by the Secretary of ACE at its principal executive offices not
later than (1) with respect to an annual general meeting, 60 days prior to the
anniversary date of the immediately preceding annual general meeting, and
(2) with respect to an extraordinary general meeting, the close of business on
the tenth day following the date on which notice of such meeting is first sent
or given to shareholders. The notice must describe the proposal or nomination
in sufficient detail for a proposal or nomination to be summarized on the
agenda for the meeting and must set forth (1) the name and address of the
shareholder, (2) a representation that the shareholder is a holder of record of
shares of ACE entitled to vote at such meeting and intends to appear in person
or by proxy at the meeting to present such proposal or nomination and (iii) the
class and number of shares of ACE that are beneficially owned by the
shareholder. In addition, the notice must set forth the reasons for conducting
such proposed business at the meeting and any material interest of the
shareholder in such business. In the case of a nomination of any person for
election as a director, the notice must set forth: (1) the name and address of
any person to be nominated; (2) a description of all arrangements or
understandings between the shareholder and each nominee and any other person or
persons; (3) such other information regarding such nominee proposed by such
shareholder as would be required to be included in a proxy statement filed
pursuant to Regulation 14A under the Exchange Act, whether or not we are then
subject to such Regulation; and (4) the consent of each nominee to serve as a
director of ACE, if so elected. The presiding officer of the annual general
meeting or extraordinary general meeting will, if the facts warrant, refuse to
acknowledge a proposal or nomination not made in compliance with the foregoing
procedure.

                                       17
<PAGE>

      The affirmative vote of the holders of at least 66 2/3% of the
outstanding shares entitled to vote, voting together as a single class, will be
required to amend or repeal, or adopt any provision inconsistent with, the
foregoing provision of the Articles.

      The advance notice requirements regulating shareholder nominations and
proposals may have the effect of precluding a contest for the election of
directors or the introduction of a shareholder proposal if the procedures
summarized above are not followed and may discourage or deter a third party
from conducting a solicitation of proxies to elect its own slate of directors
or to introduce a proposal.

Shareholder Rights Plan

      On May 7, 1999, ACE's Board of Directors declared a dividend of one
preference share purchase right for each outstanding ordinary share to
shareholders of record at the close of business on June 1, 1999. Subject to
certain exceptions, each right, when exercisable, entitles the holder to
purchase from ACE one one-thousandth of a series A junior participating
preference share at an exercise price of $150, subject to certain antidilution
adjustments. Because of the nature of the preference shares' dividend,
liquidation and voting rights, the value of the one one-thousandth of a
preference share purchasable upon the exercise of each right should approximate
the value of one ordinary share.

      The rights generally will only be exercisable:

    .  10 days following a public announcement that a person or a group of
       affiliated or associated persons has acquired, or obtained the right
       to acquire, 15% or more of the outstanding ordinary shares of ACE, or

    .  15 business days following the commencement of, or the announcement
       of an intention to make, a tender or exchange offer for 15% or more
       of the outstanding ordinary shares of ACE.

      In the following description, a person or group that acquires, or obtains
the right to acquire, 15% or more of the outstanding ordinary shares of ACE is
referred to as an "Acquiring Person."

      Generally, if any person or group becomes an Acquiring Person, each
right, except for rights held by the Acquiring Person, will entitle its holder
to purchase ordinary shares having a value equal to two times the exercise
price of the right.

      If ACE is acquired in a merger, amalgamation or other business
combination transaction or if 50% or more of ACE's assets or earnings power is
sold, then proper provision will be made so that each holder of a right, except
for the Acquiring Person, will be entitled to receive common stock of the
acquiring or surviving company having a value equal to two times the exercise
price of the right.

      ACE's board of directors has the option, at any time after any person or
group becomes an Acquiring Person but before the Acquiring Person acquires 50%
or more of the outstanding ordinary shares, to exchange each right, except for
rights held by the Acquiring Person, for one ordinary share.

      At any time prior to the time that any person or group becomes an
Acquiring Person, ACE's board of directors may redeem the rights in whole, but
not in part, at a price of $0.01 per right. The rights will expire on June 1,
2009 if they have not been previously exercised, exchanged or redeemed.

                                       18
<PAGE>

                      DESCRIPTION OF THE DEPOSITARY SHARES

General

      ACE may, at its option, elect to offer depositary shares, each
representing a fraction (to be set forth in the prospectus supplement relating
to a particular series of preferred shares) of a share of a particular series
of preferred shares as described below. In the event ACE elects to do so,
depositary receipts evidencing depositary shares will be issued to the public.

      The shares of any class or series of preferred shares represented by
depositary shares will be deposited under a deposit agreement among ACE, a
depositary selected by ACE and the holders of the depositary receipts. The
depositary will be a bank or trust company having its principal office in the
United States and having a combined capital and surplus of at least
$50,000,000. Subject to the terms of the deposit agreement, each owner of a
depositary share will be entitled, in proportion to the applicable fraction of
a preferred share represented by such depositary share, to all the rights and
preferences of the preferred shares represented thereby (including dividend,
voting, redemption and liquidation rights).

      The depositary shares will be evidenced by depositary receipts issued
pursuant to the deposit agreement. Depositary receipts will be distributed to
those persons purchasing the fractional shares of the related class or series
of preferred shares in accordance with the terms of the offering described in
the related prospectus supplement. Copies of the forms of deposit agreement and
depositary receipt are filed as exhibits to the registration statement of which
this prospectus forms a part, and the following summary is qualified in its
entirety by reference to such exhibits.

      Pending the preparation of definitive depositary receipts, the depositary
may, upon the written order of ACE, issue temporary depositary receipts
substantially identical to (and entitling the holders thereof to all the rights
pertaining to) the definitive depositary receipts but not in definitive form.
Definitive depositary receipts will be prepared thereafter without unreasonable
delay, and temporary depositary receipts will be exchangeable for definitive
depositary receipts without charge to the holder thereof.

Dividends and Other Distributions

      The depositary will distribute all cash dividends or other distributions
received in respect of the related class or series of preferred shares to the
record holders of depositary shares relating to such class or series of
preferred shares in proportion to the number of such depositary shares owned by
such holders.

      In the event of a distribution other than in cash, the depositary will
distribute property received by it to the record holders of depositary shares
entitled thereto, unless the depositary determines that it is not feasible to
make such distribution, in which case the depositary may, with the approval of
ACE, sell such property and distribute the net proceeds from such sale to such
holders.

Withdrawal of Shares

      Upon surrender of the depositary receipts at the corporate trust office
of the depositary (unless the related depositary shares have previously been
called for redemption), the holder of the depositary shares evidenced thereby
is entitled to delivery of the number of whole shares of the related class or
series of preferred shares and any money or other property represented by such
depositary shares. Holders of depositary shares will be entitled to receive
whole shares of the related class or series of preferred shares on the basis
set forth in the prospectus supplement for such class or series of preferred
shares, but holders of such whole preferred shares will not thereafter be
entitled to exchange them for depositary shares. If the depositary receipts
delivered by the holder evidence a number of depositary shares in excess of the
number of depositary shares representing the number of whole preferred shares
to be withdrawn, the depositary will deliver to such holder at the same time a
new depositary receipt evidencing such excess number of depositary shares. In
no event will fractional preferred shares be delivered upon surrender of
depositary receipts to the depositary.

                                       19
<PAGE>

Redemption of Depositary Shares

      Whenever ACE redeems preferred shares held by the depositary, the
depositary will redeem as of the same redemption date the number of depositary
shares representing shares of the related class or series of preferred shares
so redeemed. The redemption price per depositary share will be equal to the
applicable fraction of the redemption price per share payable with respect to
such class or series of the preferred shares. If less than all the depositary
shares are to be redeemed, the depositary shares to be redeemed will be
selected by lot or pro rata as may be determined by the depositary.

Voting the Preferred Shares

      Upon receipt of notice of any meeting at which the holders of the
preferred shares are entitled to vote, the depositary will mail the information
contained in such notice of meeting to the record holders of the depositary
shares relating to such preferred shares. Each record holder of such depositary
shares on the record date (which will be the same date as the record date for
the preferred shares) will be entitled to instruct the depositary as to the
exercise of the voting rights pertaining to the amount of the class or series
of preferred shares represented by such holder's depositary shares. The
depositary will endeavor, insofar as practicable, to vote the number of the
preferred shares represented by such depositary shares in accordance with such
instructions, and ACE will agree to take all action which the depositary deems
necessary in order to enable the depositary to do so. The depositary will
abstain from voting preferred shares to the extent it does not receive specific
instructions from the holders of depositary shares representing such preferred
shares.

Amendment and Termination of the Deposit Agreement

      The form of depositary receipt evidencing the depositary shares and any
provision of the deposit agreement may at any time be amended by agreement
between ACE and the depositary. However, any amendment which materially and
adversely alters the rights of the holders of depositary receipts will not be
effective unless such amendment has been approved by the holders of depositary
receipts representing at least a majority (or, in the case of amendments
relating to or affecting rights to receive dividends or distributions or voting
or redemption rights, 66 2/3%, unless otherwise provided in the related
prospectus supplement) of the depositary shares then outstanding. The deposit
agreement may be terminated by ACE or the depositary only if (1) all
outstanding depositary shares have been redeemed, (2) there has been a final
distribution in respect of the related class or series of preferred shares in
connection with any liquidation, dissolution or winding up of ACE and such
distribution has been distributed to the holders of depositary receipts or (3)
upon the consent of holders of depositary receipts representing not less than
66 2/3% of the depositary shares outstanding.

Charges of Depositary

      ACE will pay all transfer and other taxes and governmental charges
arising solely from the existence of the depositary arrangements. ACE will pay
charges of the depositary in connection with the initial deposit of the related
class or series of preferred shares and any redemption of such preferred
shares. Holders of depositary receipts will pay all other transfer and other
taxes and governmental charges and such other charges as are expressly provided
in the deposit agreement to be for their accounts.

      The depositary may refuse to effect any transfer of a depositary receipt
or any withdrawal of shares of a class or series of preferred shares evidenced
thereby until all such taxes and charges with respect to such depositary
receipt or such preferred shares are paid by the holders thereof.

Miscellaneous

      The depositary will forward all reports and communications from ACE which
are delivered to the depositary and which ACE is required to furnish to the
holders of the preferred shares.

                                       20
<PAGE>

      Neither the depositary nor ACE will be liable if it is prevented or
delayed by law or any circumstance beyond its control in performing its
obligations under the deposit agreement. The obligations of ACE and the
depositary under the deposit agreement will be limited to performance in good
faith of their duties thereunder and neither ACE nor the depositary will be
obligated to prosecute or defend any legal proceeding in respect of any
depositary shares or class or series of preferred shares unless satisfactory
indemnity is furnished. ACE and the depositary may rely on written advice of
counsel or accountants, or information provided by persons presenting preferred
shares for deposit, holders of depositary shares or other persons believed to
be competent and on documents believed to be genuine.

Resignation and Removal of Depositary

      The depositary may resign at any time by delivering to ACE notice of its
election to do so, and ACE may at any time remove the depositary. Any such
resignation or removal of the depositary will take effect upon the appointment
of a successor depositary, which successor depositary must be appointed within
60 days after delivery of the notice of resignation or removal and must be a
bank or trust company having its principal office in the United States and
having a combined capital and surplus of at least $50,000,000.

                                       21
<PAGE>

                       DESCRIPTION OF ACE DEBT SECURITIES

      The following description of the ACE debt securities sets forth the
material terms and provisions of the ACE debt securities to which any
prospectus supplement may relate. The ACE senior debt securities are to be
issued under an indenture (the "ACE senior indenture") between ACE and The
First National Bank of Chicago, as trustee, the form of which is filed as an
exhibit to the registration statement of which this prospectus forms a part.
The ACE subordinated debt securities are to be issued under an indenture (the
"ACE subordinated indenture") between ACE and The First National Bank of
Chicago, as trustee, the form of which is filed as an exhibit to the
registration statement of which this prospectus forms a part. The ACE senior
indenture and the ACE subordinated indenture are sometimes referred to herein
collectively as the "ACE indentures" and each individually as an "ACE
indenture." The particular terms of the ACE debt securities offered by any
prospectus supplement, and the extent to which the general provisions described
below may apply to the offered ACE debt securities, will be described in the
prospectus supplement.

      Because the following summaries of the material terms and provisions of
the ACE indentures and the ACE debt securities are not complete, you should
refer to the forms of the ACE indentures and the ACE debt securities for
complete information regarding the terms and provisions of the ACE indentures,
including the definitions of some of the terms used below, and the ACE debt
securities. Wherever particular articles, sections or defined terms of an ACE
indenture are referred to, those articles, sections or defined terms are
incorporated herein by reference, and the statement in connection with which
such reference is made is qualified in its entirety by such reference. The ACE
indentures are substantially identical, except for certain covenants of ACE and
provisions relating to subordination.

General

      The ACE indentures do not limit the aggregate principal amount of ACE
debt securities which ACE may issue thereunder and provide that ACE may issue
ACE debt securities thereunder from time to time in one or more series.
(Section 3.1) The ACE indentures do not limit the amount of other Indebtedness
(as defined below) or ACE debt securities, other than certain secured
Indebtedness as described below, which ACE or its subsidiaries may issue.

      Unless otherwise provided in a prospectus supplement, the ACE senior debt
securities will be unsecured obligations of ACE and will rank equally with all
of its other unsecured and unsubordinated indebtedness. The ACE subordinated
debt securities of each series will be unsecured obligations of ACE,
subordinated in right of payment to the prior payment in full of all Senior
Indebtedness (which term includes ACE senior debt securities) of ACE with
respect to such series, as described below under "Subordination of ACE
Subordinated Debt Securities" and in the applicable prospectus supplement.

      Because ACE is a holding company, its rights and the rights of its
creditors (including the holders of ACE debt securities) and shareholders to
participate in any distribution of assets of any subsidiary upon the
subsidiary's liquidation or reorganization or otherwise would be subject to the
prior claims of the subsidiary's creditors, except to the extent that ACE may
itself be a creditor with recognized claims against the subsidiary. The right
of creditors of ACE (including the holders of ACE debt securities) to
participate in the distribution of stock owned by ACE in certain of its
subsidiaries, including ACE's insurance subsidiaries, may also be subject to
approval by certain insurance regulatory authorities having jurisdiction over
such subsidiaries.

      The prospectus supplement relating to the particular ACE debt securities
offered thereby will describe the following terms of the offered ACE debt
securities:

    .  the title of such ACE debt securities and the series in which such
       ACE debt securities will be included, which may include medium-term
       notes;

    .  any limit upon the aggregate principal amount of such ACE debt
       securities;

                                       22
<PAGE>

    .  the date or dates, or the method or methods, if any, by which such
       date or dates will be determined, on which the principal of such ACE
       debt securities will be payable;

    .  the rate or rates at which such ACE debt securities will bear
       interest, if any, which rate may be zero in the case of certain ACE
       debt securities issued at an issue price representing a discount from
       the principal amount payable at maturity, or the method by which such
       rate or rates will be determined (including, if applicable, any
       remarketing option or similar method), and the date or dates from
       which such interest, if any, will accrue or the method by which such
       date or dates will be determined;

    .  the date or dates on which interest, if any, on such ACE debt
       securities will be payable and any regular record dates applicable to
       the date or dates on which interest will be so payable;

    .  whether and on what terms ACE will have the option to redeem such ACE
       debt securities in lieu of paying additional amounts in respect of
       certain Bermuda or Cayman Islands taxes, fees, duties, assessments or
       governmental charges that might be imposed on holders of such ACE
       debt securities (and the terms of such option);

    .  the place or places where the principal of, any premium or interest
       on or any additional amounts with respect to such ACE debt securities
       will be payable, any of such ACE debt securities that are issued in
       registered form may be surrendered for registration of transfer or
       exchange, and any such ACE debt securities may be surrendered for
       conversion or exchange;

    .  whether any of such ACE debt securities are to be redeemable at the
       option of ACE and, if so, the date or dates on which, the period or
       periods within which, the price or prices at which and the other
       terms and conditions upon which such ACE debt securities may be
       redeemed, in whole or in part, at the option of ACE;

    .  whether ACE will be obligated to redeem or purchase any of such ACE
       debt securities pursuant to any sinking fund or analogous provision
       or at the option of any holder thereof and, if so, the date or dates
       on which, the period or periods within which, the price or prices at
       which and the other terms and conditions upon which such ACE debt
       securities will be redeemed or purchased, in whole or in part,
       pursuant to such obligation, and any provisions for the remarketing
       of such ACE debt securities so redeemed or purchased;

    .  if other than denominations of $1,000 and any integral multiple
       thereof, the denominations in which any ACE debt securities to be
       issued in registered form will be issuable and, if other than a
       denomination of $5,000, the denominations in which any ACE debt
       securities to be issued in bearer form will be issuable;

    .  whether the ACE debt securities will be convertible into ordinary
       shares and/or exchangeable for other securities, whether or not
       issued by ACE, and, if so, the terms and conditions upon which such
       ACE debt securities will be so convertible or exchangeable;

    .  if other than the principal amount, the portion of the principal
       amount (or the method by which such portion will be determined) of
       such ACE debt securities that will be payable upon declaration of
       acceleration of the maturity thereof;

    .  if other than United States dollars, the currency of payment,
       including composite currencies, of the principal of, any premium or
       interest on or any additional amounts with respect to any of such ACE
       debt securities;

    .  whether the principal of, any premium or interest on or any
       additional amounts with respect to such ACE debt securities will be
       payable, at the election of ACE or a holder, in a currency other than
       that in which such ACE debt securities are stated to be payable and
       the date or dates on which, the period or periods within which, and
       the other terms and conditions upon which, such election may be made;

    .  any index, formula or other method used to determine the amount of
       payments of principal of, any premium or interest on or any
       additional amounts with respect to such ACE debt securities;

                                       23
<PAGE>

    .  whether such ACE debt securities are to be issued in the form of one
       or more global securities and, if so, the identity of the depositary
       for such global security or securities;

    .  whether such ACE debt securities are ACE senior debt securities or
       subordinated debt securities and, if ACE subordinated debt
       securities, the specific subordination provisions applicable thereto;

    .  in the case of ACE subordinated debt securities, the relative degree,
       if any, to which such ACE subordinated debt securities of the series
       will be senior to or be subordinated to other series of ACE
       subordinated debt securities or other indebtedness of ACE in right of
       payment, whether such other series of ACE subordinated debt
       securities or other indebtedness is outstanding or not;

    .  any deletions from, modifications of or additions to the Events of
       Default or covenants of ACE with respect to such ACE debt securities;

    .  whether the provisions described below under "Discharge, Defeasance
       and Covenant Defeasance" will be applicable to such ACE debt
       securities;

    .  whether any of such ACE debt securities are to be issued upon the
       exercise of warrants, and the time, manner and place for such ACE
       debt securities to be authenticated and delivered; and

    .  any other terms of such ACE debt securities and any other deletions
       from or modifications or additions to the applicable ACE indenture in
       respect of such ACE debt securities. (Section 3.1)

      ACE will have the ability under the ACE indentures to "reopen" a
previously issued series of ACE debt securities and issue additional ACE debt
securities of that series or establish additional terms of that series. ACE is
also permitted to issue ACE debt securities with the same terms as previously
issued ACE debt securities. (Section 3.1)

      Unless otherwise provided in the related prospectus supplement,
principal, premium, interest and additional amounts, if any, with respect to
any ACE debt securities will be payable at the office or agency maintained by
ACE for such purposes (initially the corporate trust office of the trustee). In
the case of ACE debt securities issued in registered form, interest may be paid
by check mailed to the persons entitled thereto at their addresses appearing on
the security register or by transfer to an account maintained by the payee with
a bank located in the United States. Interest on ACE debt securities issued in
registered form will be payable on any interest payment date to the persons in
whose names the ACE debt securities are registered at the close of business on
the regular record date with respect to such interest payment date. All paying
agents initially designated by ACE for the ACE debt securities will be named in
the related prospectus supplement. ACE may at any time designate additional
paying agents or rescind the designation of any paying agent or approve a
change in the office through which any paying agent acts, except that ACE will
be required to maintain a paying agent in each place where the principal of,
any premium or interest on or any additional amounts with respect to the ACE
debt securities are payable. (Sections 3.7 and 10.2)

      Unless otherwise provided in the related prospectus supplement, the ACE
debt securities may be presented for transfer (duly endorsed or accompanied by
a written instrument of transfer, if so required by ACE or the security
registrar) or exchanged for other ACE debt securities of the same series
(containing identical terms and provisions, in any authorized denominations,
and of a like aggregate principal amount) at the office or agency maintained by
ACE for such purposes (initially the corporate trust office of the trustee).
Such transfer or exchange will be made without service charge, but ACE may
require payment of a sum sufficient to cover any tax or other governmental
charge and any other expenses then payable. ACE will not be required to (1)
issue, register the transfer of, or exchange, ACE debt securities during a
period beginning at the opening of business 15 days before the day of mailing
of a notice of redemption of any such ACE debt securities and ending at the
close of business on the day of such mailing or (2) register the transfer of or
exchange any ACE debt security so selected for redemption in whole or in part,
except the unredeemed portion of any ACE debt security being redeemed in part.
(Section 3.5) ACE has appointed the trustee as security registrar. Any transfer
agent (in addition to the security registrar) initially designated by ACE for
any ACE debt securities will be

                                       24
<PAGE>

named in the related prospectus supplement. ACE may at any time designate
additional transfer agents or rescind the designation of any transfer agent or
approve a change in the office through which any transfer agent acts, except
that ACE will be required to maintain a transfer agent in each place where the
principal of, any premium or interest on or any additional amounts with respect
to the ACE debt securities are payable. (Section 10.2)

      Unless otherwise provided in the related prospectus supplement, the ACE
debt securities will be issued only in fully registered form without coupons in
minimum denominations of $1,000 and any integral multiple thereof. (Section
3.2) The ACE debt securities may be represented in whole or in part by one or
more global ACE debt securities registered in the name of a depositary or its
nominee and, if so represented, interests in such global ACE debt security will
be shown on, and transfers thereof will be effected only through, records
maintained by the designated depositary and its participants as described
below. Where ACE debt securities of any series are issued in bearer form, the
special restrictions and considerations, including special offering
restrictions and special United States Federal income tax considerations,
applicable to such ACE debt securities and to payment on and transfer and
exchange of such ACE debt securities will be described in the related
prospectus supplement.

      The ACE debt securities may be issued as original issue discount
securities (bearing no interest or bearing interest at a rate which at the time
of issuance is below market rates) to be sold at a substantial discount below
their principal amount. Special United States Federal income tax and other
considerations applicable to original issue discount securities will be
described in the related prospectus supplement.

      If the purchase price of any ACE debt securities is payable in one or
more foreign currencies or currency units or if any ACE debt securities are
denominated in one or more foreign currencies or currency units or if the
principal of, or any premium or interest on, or any additional amounts with
respect to, any ACE debt securities is payable in one or more foreign
currencies or currency units, the restrictions, elections, certain United
States Federal income tax considerations, specific terms and other information
with respect to such ACE debt securities and such foreign currency or currency
units will be set forth in the related prospectus supplement.

      ACE will comply with Section 14(e) under the Exchange Act, and any other
tender offer rules under the Exchange Act which may then be applicable, in
connection with any obligation of ACE to purchase ACE debt securities at the
option of the holders. Any such obligation applicable to a series of ACE debt
securities will be described in the related prospectus supplement.

      Unless otherwise described in a prospectus supplement relating to any ACE
debt securities, other than as described below under "--Covenants Applicable to
ACE Senior Debt Securities--Limitation on Liens on Stock of Designated
Subsidiaries," the ACE indentures do not contain any provisions that would
limit ACE's ability to incur indebtedness or that would afford holders of ACE
debt securities protection in the event of a sudden and significant decline in
the credit quality of ACE or a takeover, recapitalization or highly leveraged
or similar transaction involving ACE. Accordingly, ACE could in the future
enter into transactions that could increase the amount of indebtedness
outstanding at that time or otherwise affect ACE's capital structure or credit
rating. You should refer to the prospectus supplement relating to a particular
series of ACE debt securities for information regarding to any deletions from,
modifications of or additions to the Events of Defaults described below or
covenants of ACE contained in the ACE indentures, including any addition of a
covenant or other provisions providing event risk or similar protection.

Conversion and Exchange

      The terms, if any, on which ACE debt securities of any series are
convertible into or exchangeable for ordinary shares, preferred shares or other
securities, whether or not issued by ACE, property or cash, or a combination of
any of the foregoing, will be set forth in the related prospectus supplement.
Such terms may include provisions for conversion or exchange, either mandatory,
at the option of the holder, or at the option of ACE, in which the securities,
property or cash to be received by the holders of the ACE debt securities would
be calculated according to the factors and at such time as described in the
related prospectus supplement.

                                       25
<PAGE>

Global Securities

      The ACE debt securities of a series may be issued in whole or in part in
the form of one or more global ACE debt securities that will be deposited with,
or on behalf of, a depositary identified in the prospectus supplement relating
to such series.

      The specific terms of the depositary arrangement with respect to a series
of ACE debt securities will be described in the prospectus supplement relating
to such series. ACE anticipates that the following provisions will apply to all
depositary arrangements.

      Upon the issuance of a global security, the depositary for such global
security or its nominee will credit, on its book-entry registration and
transfer system, the respective principal amounts of the ACE debt securities
represented by such global security. Such accounts will be designated by the
underwriters or agents with respect to such ACE debt securities or by ACE if
such ACE debt securities are offered and sold directly by ACE. Ownership of
beneficial interests in a global security will be limited to persons that may
hold interests through participants. Ownership of beneficial interests in such
global security will be shown on, and the transfer of that ownership will be
effected only through, records maintained by the depositary or its nominee
(with respect to interests of participants) and on the records of participants
(with respect to interests of persons other than participants). The laws of
some states require that certain purchasers of securities take physical
delivery of such securities in definitive form. Such limits and such laws may
impair the ability to transfer beneficial interests in a global security.

      So long as the depositary for a global security, or its nominee, is the
registered owner of such global security, such depositary or such nominee, as
the case may be, will be considered the sole owner or holder of the ACE debt
securities represented by such global security for all purposes under the
applicable ACE indenture. Except as described below, owners of beneficial
interests in a global security will not be entitled to have ACE debt securities
of the series represented by such global security registered in their names and
will not receive or be entitled to receive physical delivery of ACE debt
securities of that series in definitive form.

      Principal of, any premium and interest on, and any additional amounts
with respect to, ACE debt securities registered in the name of a depositary or
its nominee will be made to the depositary or its nominee, as the case may be,
as the registered owner of the global security representing such ACE debt
securities. None of ACE, the trustee, any paying agent or the security
registrar will have any responsibility or liability for any aspect of the
records relating to or payments made on account of beneficial ownership
interests of the global security for such ACE debt securities or for
maintaining, supervising or reviewing any records relating to such beneficial
ownership interests.

      ACE expects that the depositary for a series of ACE debt securities or
its nominee, upon receipt of any payment with respect to such ACE debt
securities, will credit immediately participants' accounts with payments in
amounts proportionate to their respective beneficial interest in the principal
amount of the global security for such ACE debt securities as shown on the
records of such depositary or its nominee. ACE also expects that payments by
participants to owners of beneficial interests in such global security held
through such participants will be governed by standing instructions and
customary practices, as is now the case with securities held for the accounts
of customers registered in "street name," and will be the responsibility of
such participants.

      The ACE indentures provide that if (1) the depositary for a series of ACE
debt securities notifies ACE that it is unwilling or unable to continue as
depositary or if such depositary ceases to be eligible under the applicable ACE
indenture and a successor depositary is not appointed by ACE within 90 days of
written notice, (2) ACE determines that ACE debt securities of a particular
series will no longer be represented by global securities and executes and
delivers to the trustee a company order to such effect or (3) an Event of
Default with respect to a series of ACE debt securities has occurred and is
continuing, the global securities will be exchanged for ACE debt securities of
such series in definitive form of like tenor and of an equal aggregate

                                       26
<PAGE>

principal amount, in authorized denominations. Such definitive ACE debt
securities will be registered in such name or names as the depositary shall
instruct the trustee. (Section 3.5) It is expected that such instructions may
be based upon directions received by the depositary from participants with
respect to ownership of beneficial interests in global securities.

Payment of Additional Amounts

      ACE will make all payments of principal of and premium, if any, interest
and any other amounts on, or in respect of, the ACE debt securities of any
series without withholding or deduction at source for, or on account of, any
present or future taxes, fees, duties, assessments or governmental charges of
whatever nature imposed or levied by or on behalf of the Cayman Islands or
Bermuda (each, a "taxing jurisdiction") or any political subdivision or taxing
authority thereof or therein, unless such taxes, fees, duties, assessments or
governmental charges are required to be withheld or deducted by (x) the laws
(or any regulations or rulings promulgated thereunder) of a taxing jurisdiction
or any political subdivision or taxing authority thereof or therein or (y) an
official position regarding the application, administration, interpretation or
enforcement of any such laws, regulations or rulings (including, without
limitation, a holding by a court of competent jurisdiction or by a taxing
authority in a taxing jurisdiction or any political subdivision thereof). If a
withholding or deduction at source is required, ACE will, subject to certain
limitations and exceptions described below, pay to the holder of any such ACE
debt security such additional amounts as may be necessary so that every net
payment of principal, premium, if any, interest or any other amount made to
such holder, after the withholding or deduction, will not be less than the
amount provided for in such ACE debt security and the applicable ACE indenture
to be then due and payable.

      ACE will not be required to pay any additional amounts for or on account
of:

    1. any tax, fee, duty, assessment or governmental charge of whatever
  nature which would not have been imposed but for the fact that such holder
  (a) was a resident, domiciliary or national of, or engaged in business or
  maintained a permanent establishment or was physically present in, the
  relevant taxing jurisdiction or any political subdivision thereof or
  otherwise had some connection with the relevant taxing jurisdiction other
  than by reason of the mere ownership of, or receipt of payment under, such
  ACE debt security, (b) presented such ACE debt security for payment in the
  relevant taxing jurisdiction or any political subdivision thereof, unless
  such ACE debt security could not have been presented for payment elsewhere,
  or (c) presented such ACE debt security for payment more than 30 days after
  the date on which the payment in respect of such ACE debt security became
  due and payable or provided for, whichever is later, except to the extent
  that the holder would have been entitled to such additional amounts if it
  had presented such ACE debt security for payment on any day within that 30-
  day period;

    2. any estate, inheritance, gift, sale, transfer, personal property or
  similar tax, assessment or other governmental charge;

    3. any tax, assessment or other governmental charge that is imposed or
  withheld by reason of the failure by the holder or the beneficial owner of
  such ACE debt security to comply with any reasonable request by ACE
  addressed to the holder within 90 days of such request (a) to provide
  information concerning the nationality, residence or identity of the holder
  or such beneficial owner or (b) to make any declaration or other similar
  claim or satisfy any information or reporting requirement, which in either
  case is required or imposed by statute, treaty, regulation or
  administrative practice of the relevant taxing jurisdiction or any
  political subdivision thereof as a precondition to exemption from all or
  part of such tax, assessment or other governmental charge; or

    4. any combination of items (1), (2) and (3).

      In addition, ACE will not pay additional amounts with respect to any
payment of principal of, or premium, if any, interest or any other amounts on,
any such ACE debt security to any holder who is a fiduciary or partnership or
other than the sole beneficial owner of such ACE debt security to the extent
such payment would be required by the laws of the relevant taxing jurisdiction
(or any political subdivision or relevant taxing

                                       27
<PAGE>

authority thereof or therein) to be included in the income for tax purposes of
a beneficiary or partner or settlor with respect to such fiduciary or a member
of such partnership or a beneficial owner who would not have been entitled to
such additional amounts had it been the holder of the ACE debt security.
(Section 10.4)

Covenants Applicable to ACE Senior Debt Securities

      Limitation on Liens on Stock of Designated Subsidiaries

      Under the ACE senior indenture, ACE will covenant that, so long as any
ACE senior debt securities are outstanding, it will not, nor will it permit any
Subsidiary to, create, assume, incur, guarantee or otherwise permit to exist
any Indebtedness secured by any mortgage, pledge, lien, security interest or
other encumbrance upon any shares of capital stock of any Designated Subsidiary
(whether such shares of stock are now owned or hereafter acquired) without
effectively providing concurrently that the ACE senior debt securities (and, if
ACE so elects, any other Indebtedness of ACE that is not subordinate to the ACE
senior debt securities and with respect to which the governing instruments
require, or pursuant to which ACE is otherwise obligated, to provide such
security) will be secured equally and ratably with such Indebtedness for at
least the time period such other Indebtedness is so secured. (Section 10.5 of
the ACE senior indenture)

      For purposes of the ACE senior indenture, "capital stock" of any Person
means any and all shares, interests, rights to purchase, warrants, options,
participations or other equivalents of or interests in (however designated)
equity of such Person, including preferred stock, but excluding any debt
securities convertible into such equity. (Section 1.1 of the ACE senior
indenture)

      The term "Designated Subsidiary" means any present or future consolidated
Subsidiary of ACE, the Consolidated Net Worth of which constitutes at least 5%
of ACE's Consolidated Net Worth. (Section 1.1 of the ACE senior indenture)  As
of July 31, 1999, ACE's Designated Subsidiaries were ACE Bermuda, Tempest, ACE
INA and ACE USA.

      For purposes of the ACE indentures, the term "Indebtedness" means, with
respect to any Person, (1) the principal of and any premium and interest on (a)
indebtedness of such Person for money borrowed and (b) indebtedness evidenced
by notes, debentures, bonds or other similar instruments for the payment of
which such Person is responsible or liable; (2) all Capitalized Lease
Obligations of such Person; (3) all obligations of such Person issued or
assumed as the deferred purchase price of property, all conditional sale
obligations and all obligations under any title retention agreement (but
excluding trade accounts payable arising in the ordinary course of business);
(4) all obligations of such Person for the reimbursement of any obligor on any
letter of credit, banker's acceptance or similar credit transaction (other than
obligations with respect to letters of credit securing obligations (other than
obligations described in (1) through (3) above) entered into in the ordinary
course of business of such Person to the extent such letters of credit are not
drawn upon or, if and to the extent drawn upon, such drawing is reimbursed no
later than the third Business Day following receipt by such Person of a demand
for reimbursement following payment on the letter of credit); (5) all
obligations of the type referred to in clauses (1) through (4) of other Persons
and all dividends of other Persons for the payment of which, in either case,
such Person is responsible or liable as obligor, guarantor or otherwise; (6)
all obligations of the type referred to in clauses (1) through (5) of other
Persons secured by any mortgage, pledge, lien, security interest or other
encumbrance on any property or asset of such Person (whether or not such
obligation is assumed by such Person), the amount of such obligation being
deemed to be the lesser of the value of such property or assets or the amount
of the obligation so secured; and (7) any amendments, modifications,
refundings, renewals or extensions of any indebtedness or obligation described
as Indebtedness in clauses (1) through (6) above. (Section 1.1)

      Limitations on Disposition of Stock of Designated Subsidiaries

      The ACE senior indenture also provides that, so long as any ACE senior
debt securities are outstanding and except in a transaction otherwise governed
by such ACE indenture, ACE will not issue, sell, assign, transfer or otherwise
dispose of any shares of, securities convertible into, or warrants, rights or
options

                                       28
<PAGE>

to subscribe for or purchase shares of, capital stock (other than preferred
stock having no voting rights of any kind) of any Designated Subsidiary, and
will not permit any Designated Subsidiary to issue (other than to ACE) any
shares (other than director's qualifying shares) of, or securities convertible
into, or warrants, rights or options to subscribe for or purchase shares of,
capital stock (other than preferred stock having no voting rights of any kind)
of any Designated Subsidiary, if, after giving effect to any such transaction
and the issuance of the maximum number of shares issuable upon the conversion
or exercise of all such convertible securities, warrants, rights or options,
ACE would own, directly or indirectly, less than 80% of the shares of capital
stock of such Designated Subsidiary (other than preferred stock having no
voting rights of any kind); provided, however, that (1) any issuance, sale,
assignment, transfer or other disposition permitted by ACE may only be made for
at least a fair market value consideration as determined by ACE's board of
directors pursuant to a resolution adopted in good faith and (2) the foregoing
will not prohibit any such issuance or disposition of securities if required by
any law or any regulation or order of any governmental or insurance regulatory
authority. Notwithstanding the foregoing, (1) ACE may merge or consolidate any
Designated Subsidiary into or with another direct or indirect Subsidiary of
ACE, the shares of capital stock of which ACE owns at least 80%, and (2) ACE
may, subject to the provisions described under "--Consolidation, Amalgamation,
Merger and Sale of Assets" below, sell, assign, transfer or otherwise dispose
of the entire capital stock of any Designated Subsidiary at one time for at
least a fair market value consideration as determined by ACE's board of
directors pursuant to a resolution adopted in good faith. (Section 10.6 of the
ACE senior indenture)

Consolidation, Amalgamation, Merger and Sale of Assets

      Each ACE indenture provides that ACE may not (1) consolidate or
amalgamate with or merge into any Person or convey, transfer or lease its
properties and assets as an entirety or substantially as an entirety to any
Person, or (2) permit any Person to consolidate or amalgamate with or merge
into ACE, or convey, transfer or lease its properties and assets as an entirety
or substantially as an entirety to ACE, unless (a) in the case of (1) above,
such Person is a Corporation organized and existing under the laws of the
United States of America, any State thereof or the District of Columbia,
Bermuda or the Cayman Islands and will expressly assume, by supplemental
indenture satisfactory in form to the trustee, the due and punctual payment of
the principal of, any premium and interest on and any additional amounts with
respect to all of the ACE debt securities issued thereunder, and the
performance of ACE's obligations under such ACE indenture and the ACE debt
securities issued thereunder, and provides for conversion or exchange rights in
accordance with the provisions of the ACE debt securities of any series that
are convertible or exchangeable into ordinary shares or other securities; (b)
immediately after giving effect to such transaction and treating any
indebtedness which becomes an obligation of ACE or a Subsidiary as a result of
such transaction as having been incurred by ACE or such Subsidiary at the time
of such transaction, no Event of Default, and no event which after notice or
lapse of time or both would become an Event of Default, will have happened and
be continuing; and (c) certain other conditions are met. (Section 8.1)

Events of Default

      Each of the following events will constitute an Event of Default under
the applicable ACE indenture with respect to any series of ACE debt securities
issued thereunder (whatever the reason for such Event of Default and whether it
will be voluntary or involuntary or be effected by operation of law or pursuant
to any judgment, decree or order of any court or any order, rule or regulation
of any administrative or governmental body):

    (1) default in the payment of any interest on any ACE debt security of
        such series, or any additional amounts payable with respect thereto,
        when such interest becomes or such additional amounts become due and
        payable, and continuance of such default for a period of 30 days;

    (2) default in the payment of the principal of or any premium on any ACE
        debt security of such series, or any additional amounts payable with
        respect thereto, when such principal or premium becomes or such
        additional amounts become due and payable either at maturity, upon
        any redemption, by declaration of acceleration or otherwise;


                                       29
<PAGE>

    (3) default in the deposit of any sinking fund payment, when and as due
        by the terms of any ACE debt security of such series;

    (4) default in the performance, or breach, of any covenant or warranty
        of ACE contained in the applicable ACE indenture for the benefit of
        such series or in the ACE debt securities of such series, and the
        continuance of such default or breach for a period of 60 days after
        there has been given written notice as provided in such ACE
        indenture;

    (5) if any event of default as defined in any mortgage, indenture or
        instrument under which there may be issued, or by which there may be
        secured or evidenced, any Indebtedness of ACE (including an Event of
        Default under any other series of ACE debt securities), whether such
        Indebtedness now exists or is hereafter created or incurred, happens
        and consists of default in the payment of more than $50,000,000 in
        principal amount of such Indebtedness at the maturity thereof (after
        giving effect to any applicable grace period) or results in such
        Indebtedness in principal amount in excess of $50,000,000 becoming
        or being declared due and payable prior to the date on which it
        would otherwise become due and payable, and such default is not
        cured or such acceleration is not rescinded or annulled within a
        period of 30 days after there has been given written notice as
        provided in the applicable ACE indenture;

    (6) ACE shall fail within 60 days to pay, bond or otherwise discharge
        any uninsured judgment or court order for the payment of money in
        excess of $50,000,000, which is not stayed on appeal or is not
        otherwise being appropriately contested in good faith;

    (7) certain events in bankruptcy, insolvency or reorganization of ACE;
        and

    (8) any other Event of Default provided in or pursuant to the applicable
        ACE indenture with respect to ACE debt securities of such series.
        (Section 5.1)

      If an Event of Default with respect to the ACE debt securities of any
series (other than an Event of Default described in (7) of the preceding
paragraph) occurs and is continuing, either the trustee or the holders of not
less than 25% in principal amount of the outstanding ACE debt securities of
such series by written notice as provided in the applicable ACE indenture may
declare the principal amount (or such lesser amount as may be provided for in
the ACE debt securities of such series) of all outstanding ACE debt securities
of such series to be due and payable immediately. At any time after a
declaration of acceleration has been made, but before a judgment or decree for
payment of money has been obtained by the trustee, and subject to applicable
law and certain other provisions of the applicable ACE indenture, the holders
of not less than a majority in principal amount of the ACE debt securities of
such series may, under certain circumstances, rescind and annul such
declaration of acceleration. An Event of Default described in (7) of the
preceding paragraph will cause the principal amount and accrued interest (or
such lesser amount as provided for in the ACE debt securities of such series)
to become immediately due and payable without any declaration or other act by
the trustee or any holder. (Section 5.2)

      Each ACE indenture provides that, within 90 days after the occurrence of
any event which is, or after notice or lapse of time or both would become, an
Event of Default with respect to the ACE debt securities of any series (a
"default"), the trustee will transmit, in the manner set forth in such ACE
indenture, notice of such default to the holders of the ACE debt securities of
such series unless such default has been cured or waived; provided, however,
that except in the case of a default in the payment of principal of, or
premium, if any, or interest, if any, on, or additional amounts or any sinking
fund or purchase fund installment with respect to, any ACE debt security of
such series, the trustee may withhold such notice if and so long as the board
of directors, the executive committee or a trust committee of directors and/or
responsible officers of the trustee in good faith determine that the
withholding of such notice is in the best interest of the holders of ACE debt
securities of such series; and provided, further, that in the case of any
default of the character described in (5) of the second preceding paragraph, no
such notice to holders will be given until at least 30 days after the default
occurs. (Section 6.2)


                                       30
<PAGE>

      If an Event of Default occurs and is continuing with respect to the ACE
debt securities of any series, the trustee may in its discretion proceed to
protect and enforce its rights and the rights of the holders of ACE debt
securities of such series by all appropriate judicial proceedings. (Section
5.3) Each ACE indenture provides that, subject to the duty of the trustee
during any default to act with the required standard of care, the trustee will
be under no obligation to exercise any of its rights or powers under such ACE
indenture at the request or direction of any of the holders of ACE debt
securities, unless such holders shall have offered to the trustee reasonable
indemnity. (Section 6.1) Subject to such provisions for the indemnification of
the trustee, and subject to applicable law and certain other provisions of the
applicable ACE indenture, the holders of a majority in principal amount of the
outstanding ACE debt securities of any series will have the right to direct the
time, method and place of conducting any proceeding for any remedy available to
the trustee, or exercising any trust or power conferred on the trustee, with
respect to the ACE debt securities of such series. (Section 5.12)

Modification and Waiver

      ACE and the trustee may modify or amend either ACE indenture with the
consent of the holders of not less than a majority in principal amount of the
outstanding ACE debt securities of each series affected thereby; provided,
however, that no such modification or amendment may, without the consent of the
holder of each outstanding ACE debt security affected thereby,

    .  change the stated maturity of the principal of, or any premium or
       installment of interest on, or any additional amounts with respect
       to, any ACE debt security,

    .  reduce the principal amount of, or the rate (or modify the
       calculation of such rate) of interest on, or any additional amounts
       with respect to, or any premium payable upon the redemption of, any
       ACE debt security,

    .  change the obligation of ACE to pay additional amounts with respect
       to any ACE debt security,

    .  reduce the amount of the principal of an original issue discount
       security that would be due and payable upon a declaration of
       acceleration of the maturity thereof or the amount thereof provable
       in bankruptcy,

    .  change the redemption provisions of any ACE debt security or
       adversely affect the right of repayment at the option of any holder
       of any ACE debt security,

    .  change the place of payment or the coin or currency in which the
       principal of, any premium or interest on or any additional amounts
       with respect to any ACE debt security is payable,

    .  impair the right to institute suit for the enforcement of any payment
       on or after the stated maturity of any ACE debt security (or, in the
       case of redemption, on or after the redemption date or, in the case
       of repayment at the option of any holder, on or after the repayment
       date),

    .  reduce the percentage in principal amount of the outstanding ACE debt
       securities, the consent of whose holders is required in order to take
       specific actions,

    .  reduce the requirements for quorum or voting by holders of ACE debt
       securities in Section 15.4 of each ACE indenture,

    .  modify any of the provisions in the applicable ACE indenture
       regarding the waiver of past defaults and the waiver of certain
       covenants by the holders of ACE debt securities except to increase
       any percentage vote required or to provide that other provisions of
       such ACE indenture cannot be modified or waived without the consent
       of the holder of each ACE debt security affected thereby,

    .  make any change that adversely affects the right to convert or
       exchange any ACE debt security into or for ordinary shares of ACE or
       other securities (whether or not issued by ACE), cash or property in
       accordance with its terms,

                                       31
<PAGE>

    .  modify any of the provisions of the ACE subordinated indenture
       relating to the subordination of the ACE subordinated debt securities
       in a manner adverse to holders of ACE subordinated debt securities,
       or

    .  modify any of the above provisions. (Section 9.2)

      In addition, no supplemental indenture may directly or indirectly modify
or eliminate the subordination provisions of the ACE subordinated indenture in
any manner which might terminate or impair the subordination of the ACE
subordinated debt securities of any series to Senior Indebtedness with respect
to such series without the prior written consent of the holders of such Senior
Indebtedness. (Section 9.7 of the ACE subordinated indenture)

      ACE and the trustee may modify or amend either ACE indenture and the ACE
debt securities of any series without the consent of any holder in order to,
among other things;

    .  provide for a successor to ACE pursuant to a consolidation,
       amalgamation, merger or sale of assets;

    .  add to the covenants of ACE for the benefit of the holders of all or
       any series of ACE debt securities or to surrender any right or power
       conferred upon ACE by the applicable ACE indenture;

    .  provide for a successor trustee with respect to the ACE debt
       securities of all or any series;

    .  cure any ambiguity or correct or supplement any provision in either
       ACE indenture which may be defective or inconsistent with any other
       provision, or to make any other provisions with respect to matters or
       questions arising under either ACE indenture which will not adversely
       affect the interests of the holders of ACE debt securities of any
       series;

    .  change the conditions, limitations and restrictions on the authorized
       amount, terms or purposes of issue, authentication and delivery of
       ACE debt securities under either ACE indenture;

    .  add any additional Events of Default with respect to all or any
       series of ACE debt securities;

    .  secure the ACE debt securities;

    .  provide for conversion or exchange rights of the holders of any
       series of ACE debt securities; or

    .  make any other change that does not materially adversely affect the
       interests of the holders of any ACE debt securities then outstanding
       under the applicable ACE indenture. (Section 9.1)

      The holders of at least a majority in principal amount of the outstanding
ACE debt securities of any series may, on behalf of the holders of all ACE debt
securities of that series, waive compliance by ACE with certain covenants of
the applicable ACE indenture. (Section 10.8 of the ACE senior indenture;
Section 10.6 of the ACE subordinated indenture)  The holders of not less than a
majority in principal amount of the outstanding ACE debt securities of any
series may, on behalf of the holders of all ACE debt securities that series,
waive any past default and its consequences under the applicable ACE indenture
with respect to the ACE debt securities of that series, except a default (1) in
the payment of principal of, any premium or interest on or any additional
amounts with respect to ACE debt securities of that series or (2) in respect of
a covenant or provision of the applicable ACE indenture that cannot be modified
or amended without the consent of the holder of each outstanding ACE debt
security of any series affected. (Section 5.13)

      Under each ACE indenture, ACE is required to furnish the trustee annually
a statement as to performance by ACE of certain of its obligations under that
ACE indenture and as to any default in such performance. ACE is also required
to deliver to the trustee, within five days after occurrence thereof, written
notice of any Event of Default, or any event which after notice or lapse of
time or both would constitute an Event of Default, resulting from the failure
to perform or breach of any covenant or warranty contained in the applicable
ACE indenture or the ACE debt securities of any series. (Section 10.9 of the
ACE senior indenture; Section 10.7 of the ACE subordinated indenture)

                                       32
<PAGE>

Discharge, Defeasance and Covenant Defeasance

      ACE may discharge certain obligations to holders of any series of ACE
debt securities that have not already been delivered to the trustee for
cancellation and that either have become due and payable or will become due and
payable within one year (or scheduled for redemption within one year) by
depositing with the trustee, in trust, funds in U.S. dollars or in the Foreign
Currency in which such ACE debt securities are payable in an amount sufficient
to pay the entire indebtedness on such ACE debt securities with respect to
principal and any premium, interest and additional amounts to the date of such
deposit (if such ACE debt securities have become due and payable) or to the
maturity thereof, as the case may be. (Section 4.1)

      Each ACE indenture provides that, unless the provisions of Section 4.2
thereof are made inapplicable to the ACE debt securities of or within any
series pursuant to Section 3.1 thereof, ACE may elect either (1) to defease and
be discharged from any and all obligations with respect to such ACE debt
securities (except for, among other things, the obligation to pay additional
amounts, if any, upon the occurrence of certain events of taxation, assessment
or governmental charge with respect to payments on such ACE debt securities and
other obligations to register the transfer or exchange of such ACE debt
securities, to replace temporary or mutilated, destroyed, lost or stolen ACE
debt securities, to maintain an office or agency with respect to such ACE debt
securities and to hold moneys for payment in trust) ("defeasance") or (2) to be
released from its obligations with respect to such ACE debt securities under
certain covenants as described in the related prospectus supplement, and any
omission to comply with such obligations will not constitute a default or an
Event of Default with respect to such ACE debt securities ("covenant
defeasance"). Defeasance or covenant defeasance, as the case may be, will be
conditioned upon the irrevocable deposit by ACE with the Trustee, in trust, of
an amount in U.S. dollars or in the Foreign Currency in which such ACE debt
securities are payable at stated maturity, or Government Obligations (as
defined below), or both, applicable to such ACE debt securities which through
the scheduled payment of principal and interest in accordance with their terms
will provide money in an amount sufficient to pay the principal of, any premium
and interest on, and any additional amounts with respect to, such ACE debt
securities on the scheduled due dates. (Section 4.2)

      Such a trust may only be established if, among other things, (1) the
applicable defeasance or covenant defeasance does not result in a breach or
violation of, or constitute a default under, the applicable ACE indenture or
any other material agreement or instrument to which ACE is a party or by which
it is bound, (2) no Event of Default or event which with notice or lapse of
time or both would become an Event of Default with respect to the ACE debt
securities to be defeased will have occurred and be continuing on the date of
establishment of such a trust and, with respect to defeasance only, at any time
during the period ending on the 123rd day after such date and (3) ACE has
delivered to the trustee an opinion of counsel (as specified in the ACE
indenture) to the effect that the holders of such ACE debt securities will not
recognize income, gain or loss for United States Federal income tax purposes as
a result of such defeasance or covenant defeasance and will be subject to
United States Federal income tax on the same amounts, in the same manner and at
the same times as would have been the case if such defeasance or covenant
defeasance had not occurred, and such opinion of counsel, in the case of
defeasance, must refer to and be based upon a letter ruling of the Internal
Revenue Service received by ACE, a Revenue Ruling published by the Internal
Revenue Service or a change in applicable United States Federal income tax law
occurring after the date of the applicable ACE indenture. (Section 4.2)

      "Foreign Currency" means any currency, currency unit or composite
currency, including, without limitation, the euro, issued by the government of
one or more countries other than the United States of America or by any
recognized confederation or association of such governments. (Section 1.1)

      "Government Obligations" means debt securities which are (1) direct
obligations of the United States of America or the government or the
governments which issued the Foreign Currency in which the ACE debt securities
of a particular series are payable, for the payment of which its full faith and
credit is pledged or (2) obligations of a Person controlled or supervised by
and acting as an agency or instrumentality of the United States of America or
such government or governments which issued the Foreign Currency in which the
ACE debt securities of such series are payable, the timely payment of which is
unconditionally guaranteed as a full

                                       33
<PAGE>

faith and credit obligation by the United States of America or such other
government or governments, and which, in the case of clauses (1) and (2), are
not callable or redeemable at the option of the issuer or issuers thereof, and
will also include a depository receipt issued by a bank or trust company as
custodian with respect to any such Government Obligation or a specific payment
of interest on or principal of or any other amount with respect to any such
Government Obligation held by such custodian for the account of the holder of
such depository receipt, provided that (except as required by law) such
custodian is not authorized to make any deduction from the amount payable to
the holder of such depository receipt from any amount received by the custodian
with respect to the Government Obligation or the specific payment of interest
on or principal of or any other amount with respect to the Government
Obligation evidenced by such depository receipt. (Section 1.1)

      If after ACE has deposited funds and/or Government Obligations to effect
defeasance or covenant defeasance with respect to ACE debt securities of any
series, (1) the holder of an ACE debt security of that series is entitled to,
and does, elect pursuant to Section 3.1 of the applicable ACE indenture or the
terms of such ACE debt security to receive payment in a currency other than
that in which such deposit has been made in respect of such ACE debt security,
or (2) a Conversion Event (as defined below) occurs in respect of the Foreign
Currency in which such deposit has been made, the indebtedness represented by
such ACE debt security will be deemed to have been, and will be, fully
discharged and satisfied through the payment of the principal of, any premium
and interest on, and any additional amounts with respect to, such ACE debt
security as such ACE debt security becomes due out of the proceeds yielded by
converting the amount or other properties so deposited in respect of such ACE
debt security into the currency in which such ACE debt security becomes payable
as a result of such election or such Conversion Event based on (a) in the case
of payments made pursuant to clause (1) above, the applicable market exchange
rate for such currency in effect on the second business day prior to such
payment date, or (b) with respect to a Conversion Event, the applicable market
exchange rate for such Foreign Currency in effect (as nearly as feasible) at
the time of the Conversion Event. (Section 4.2)

      "Conversion Event" means the cessation of use of (1) a Foreign Currency
both by the government of the country or countries which issued such Foreign
Currency and for the settlement of transactions by a central bank or other
public institutions of or within the international banking community or (2) any
currency unit or composite currency for the purposes for which it was
established. All payments of principal of, any premium and interest on, and any
additional amounts with respect to, any ACE debt security that are payable in a
Foreign Currency that ceases to be used by the government or governments of
issuance will be made in U.S. dollars. (Section 1.1)

      In the event ACE effects covenant defeasance with respect to any ACE debt
securities and such ACE debt securities are declared due and payable because of
the occurrence of any Event of Default other than an Event of Default with
respect to any covenant as to which there has been covenant defeasance, the
amount in such Foreign Currency in which such ACE debt securities are payable,
and Government Obligations on deposit with the trustee, will be sufficient to
pay amounts due on such ACE debt securities at the time of the stated maturity
but may not be sufficient to pay amounts due on such ACE debt securities at the
time of the acceleration resulting from such Event of Default. However, ACE
would remain liable to make payment of such amounts due at the time of
acceleration.

Subordination of ACE Subordinated Debt Securities

      The ACE subordinated debt securities of each series will, to the extent
set forth in the ACE subordinated indenture, be subordinate in right of payment
to the prior payment in full of all Senior Indebtedness with respect to such
series. (Section 16.1 of the ACE subordinated indenture). Upon any payment or
distribution of assets of ACE of any kind or character, whether in cash,
property or securities, to creditors upon any dissolution, winding-up,
liquidation or reorganization of ACE, whether voluntary or involuntary, or in
bankruptcy, insolvency, receivership or other proceedings, all amounts due upon
all Senior Indebtedness with respect to the ACE subordinated debt securities of
any series will first be paid in full, or payment thereof

                                       34
<PAGE>

provided for in money in accordance with its terms, before the holders of ACE
subordinated debt securities of such series are entitled to receive or retain
any payment on account of principal of, or any premium or interest on, or any
additional amounts with respect to, the ACE subordinated debt securities of
such series, and to that end the holders of such Senior Indebtedness will be
entitled to receive, for application to the payment thereof, any payment or
distribution of any kind or character, whether in cash, property or securities,
including any such payment or distribution which may be payable or deliverable
by reason of the payment of any other Indebtedness of ACE being subordinated to
the payment of ACE subordinated debt securities of such series, which may be
payable or deliverable in respect of the ACE subordinated debt securities of
such series upon any such dissolution, winding-up, liquidation or
reorganization or in any such bankruptcy, insolvency, receivership or other
proceeding. (Section 16.3 of the ACE subordinated indenture)

      By reason of such subordination, in the event of liquidation or
insolvency of ACE, holders of Senior Indebtedness with respect to the ACE
subordinated debt securities of any series and holders of other obligations of
ACE that are not subordinated to such Senior Indebtedness may recover more,
ratably, than the holders of the ACE subordinated debt securities of such
series.

      Subject to the payment in full of all Senior Indebtedness with respect to
the ACE subordinated debt securities of any series, the rights of the holders
of the ACE subordinated debt securities of such series will be subrogated to
the rights of the holders of such Senior Indebtedness to receive payments or
distributions of cash, property or securities of ACE applicable to such Senior
Indebtedness until the principal of, any premium and interest on, and any
additional amounts with respect to, the ACE subordinated debt securities of
such series have been paid in full. (Section 16.4 of the ACE subordinated
indenture)

      No payment of principal (including redemption and sinking fund payments)
of or any premium or interest on or any additional amounts with respect to the
ACE subordinated debt securities of any series may be made (1) if any Senior
Indebtedness with respect to such series is not paid when due and any
applicable grace period with respect to such default has ended and such default
has not been cured or waived or ceased to exist, or (2) if the maturity of any
Senior Indebtedness with respect to such series has been accelerated because of
a default. (Section 16.2 of the ACE subordinated indenture)

      The ACE subordinated indenture does not limit or prohibit ACE from
incurring additional Senior Indebtedness, which may include Indebtedness that
is senior to the ACE subordinated debt securities of any series, but
subordinate to other obligations of ACE. The ACE senior debt securities will
constitute Senior Indebtedness with respect to the ACE subordinatd debt
securities of each series under the ACE subordinated indenture.

      The term "Senior Indebtedness" means, with respect to the ACE
subordinated debt securities of any particular series, all Indebtedness of ACE
outstanding at any time, except (1) the ACE subordinated debt securities of
such series, (2) Indebtedness as to which, by the terms of the instrument
creating or evidencing the same, it is provided that such Indebtedness is
subordinated to or ranks equally with the ACE subordinated debt securities of
such series, (3) Indebtedness of ACE to an Affiliate of ACE, (4) interest
accruing after the filing of a petition initiating any bankruptcy, insolvency
or other similar proceeding unless such interest is an allowed claim
enforceable against ACE in a proceeding under federal or state bankruptcy laws
and (5) trade accounts payable. Senior Indebtedness with respect to the ACE
subordinated debt securities of any particular series will continue to be
Senior Indebtedness with respect to the ACE subordinated debt securities of
such series and be entitled to the benefits of the subordination provisions
irrespective of any amendment, modification or waiver of any term of such
Senior Indebtedness. (Sections 1.1 and 16.8 of the ACE subordinated indenture)

      The ACE subordinated indenture provides that the foregoing subordination
provisions, insofar as they relate to any particular series of ACE subordinated
debt securities, may be changed prior to such issuance. Any such change would
be described in the related prospectus supplement.

                                       35
<PAGE>

New York Law to Govern

      The ACE indentures and the ACE debt securities will be governed by, and
construed in accordance with, the laws of the State of New York applicable to
agreements made or instruments entered into and, in each case, performed in
that state. (Section 1.13)

Information Concerning the Trustee

      ACE may from time to time borrow from, maintain deposit accounts with and
conduct other banking transactions with The First National Bank of Chicago and
its affiliates in the ordinary course of business.

      Under each ACE indenture, The First National Bank of Chicago is required
to transmit annual reports to all holders regarding its eligibility and
qualifications as trustee under the applicable ACE indenture and related
matters. (Section 7.3)

                                       36
<PAGE>

            DESCRIPTION OF ACE INA DEBT SECURITIES AND ACE GUARANTEE

      The following description of the ACE INA debt securities and the ACE
guarantee sets forth the material terms and provisions of the ACE INA debt
securities and the ACE guarantee to which any prospectus supplement may relate.
The ACE INA senior debt securities are to be issued under an indenture (the
"ACE INA senior indenture") among ACE INA, ACE and The First National Bank of
Chicago, as trustee, the form of which is filed as an exhibit to the
registration statement of which this prospectus forms a part. The ACE INA
subordinated debt securities are to be issued under an indenture (the "ACE INA
subordinated indenture") among ACE INA, ACE and The First National Bank of
Chicago, as trustee, the form of which is filed as an exhibit to the
registration statement of which this prospectus forms a part. The ACE INA
senior indenture and the ACE INA subordinated indenture are sometimes referred
to herein collectively as the "ACE INA indentures" and each individually as an
"ACE INA indenture". The particular terms of the ACE INA debt securities
offered by any prospectus supplement, and the extent to which the general
provisions described below may apply to the offered ACE INA debt securities,
will be described in the prospectus supplement.

      Because the following summaries of the material terms and provisions of
the ACE INA indentures, the ACE INA debt securities and the ACE guarantee are
not complete, you should refer to the forms of the ACE INA indentures and the
ACE INA debt securities for complete information regarding the terms and
provisions of the ACE INA indentures, including the definitions of some of the
terms used below, the ACE INA debt securities and the ACE guarantee. Wherever
particular articles, sections or defined terms of an ACE INA indenture are
referred to, such articles, sections or defined terms are incorporated herein
by reference, and the statement in connection with which such reference is made
is qualified in its entirety by such reference. The ACE INA indentures are
substantially identical, except for certain covenants of ACE INA and ACE and
provisions relating to subordination.

General

      The ACE INA indentures do not limit the aggregate principal amount of ACE
INA debt securities which ACE INA may issue thereunder and provide that ACE INA
may issue ACE INA debt securities thereunder from time to time in one or more
series. (Section 3.1) The ACE INA indentures do not limit the amount of other
Indebtedness (as defined below) or ACE INA debt securities, other than certain
secured Indebtedness as described below, which ACE, ACE INA or their respective
subsidiaries may issue.

      Unless otherwise provided in a prospectus supplement, the ACE INA senior
debt securities will be unsecured obligations of ACE INA and will rank equally
with all of its other unsecured and unsubordinated indebtedness. The ACE INA
subordinated debt securities of each series will be unsecured obligations of
ACE INA, subordinated in right of payment to the prior payment in full of all
Senior Indebtedness (which term includes ACE INA senior debt securities) of ACE
INA with respect to such series, as described below under "Subordination of ACE
INA Subordinated Debt Securities" and in the related prospectus supplement. The
ACE INA subordinated debt securities of any series issued to an ACE Trust will
rank equally with each other series of ACE INA subordinated debt securities
issued to other ACE Trusts.

      Because ACE INA is a holding company, its rights and the rights of its
creditors (including the holders of ACE INA debt securities) and shareholders
to participate in any distribution of assets of any subsidiary upon that
subsidiary's liquidation or reorganization or otherwise would be subject to the
prior claims of the subsidiary's creditors, except to the extent that ACE INA
may itself be a creditor with recognized claims against the subsidiary. The
rights of creditors of ACE INA (including the holders of ACE INA debt
securities) to participate in the distribution of stock owned by ACE INA in
certain of its subsidiaries, including ACE INA's insurance subsidiaries, may
also be subject to the approval of certain insurance regulatory authorities
having jurisdiction over such subsidiaries.

      In the event ACE INA subordinated debt securities are issued to an ACE
Trust in connection with the issuance of preferred securities and common
securities by that ACE Trust, such ACE INA subordinated debt

                                       37
<PAGE>

securities subsequently may be distributed pro rata to the holders of such
preferred securities and common securities in connection with the dissolution
of that ACE Trust upon the occurrence of certain events described in the
prospectus supplement relating to such preferred securities and common
securities. Only one series of ACE INA subordinated debt securities will be
issued to an ACE Trust in connection with the issuance of preferred securities
and common securities by that ACE Trust.

      The prospectus supplement relating to the particular ACE INA debt
securities offered thereby will describe the following terms of the offered ACE
INA debt securities:

    .  the title of such ACE INA debt securities and the series in which
       such ACE INA debt securities will be included, which may include
       medium-term notes;

    .  any limit upon the aggregate principal amount of such ACE INA debt
       securities;

    .  the date or dates, or the method or methods, if any, by which such
       date or dates will be determined, on which the principal of such ACE
       INA debt securities will be payable;

    .  the rate or rates at which such ACE INA debt securities will bear
       interest, if any, which rate may be zero in the case of certain ACE
       INA debt securities issued at an issue price representing a discount
       from the principal amount payable at maturity, or the method by which
       such rate or rates will be determined (including, if applicable, any
       remarketing option or similar method), and the date or dates from
       which such interest, if any, will accrue or the method by which such
       date or dates will be determined;

    .  the date or dates on which interest, if any, on such ACE INA debt
       securities will be payable and any regular record dates applicable to
       the date or dates on which interest will be so payable;

    .  whether and under what circumstances additional amounts in respect of
       certain taxes, fees, duties, assessments or governmental charges that
       might be imposed on holders of such ACE INA debt securities will be
       payable and, if so, whether and on what terms ACE INA will have the
       option to redeem such ACE INA debt securities in lieu of paying such
       additional amounts (and the terms of such option);

    .  the place or places where the principal of, any premium or interest
       on or any additional amounts with respect to such ACE INA debt
       securities will be payable, any of such ACE INA debt securities that
       are issued in registered form may be surrendered for registration of
       transfer or exchange, and any such ACE INA debt securities may be
       surrendered for conversion or exchange;

    .  whether any of such ACE INA debt securities are to be redeemable at
       the option of ACE INA and, if so, the date or dates on which, the
       period or periods within which, the price or prices at which and the
       other terms and conditions upon which such ACE INA debt securities
       may be redeemed, in whole or in part, at the option of ACE INA;

    .  whether ACE INA will be obligated to redeem or purchase any of such
       ACE INA debt securities pursuant to any sinking fund or analogous
       provision or at the option of any holder thereof and, if so, the date
       or dates on which, the period or periods within which, the price or
       prices at which and the other terms and conditions upon which such
       ACE INA debt securities will be redeemed or purchased, in whole or in
       part, pursuant to such obligation, and any provisions for the
       remarketing of such ACE INA debt securities so redeemed or purchased;

    .  if other than denominations of $1,000 and any integral multiple
       thereof, the denominations in which any ACE INA debt securities to be
       issued in registered form will be issuable and, if other than a
       denomination of $5,000, the denominations in which any ACE INA debt
       securities to be issued in bearer form will be issuable;

    .  whether the ACE INA debt securities will be convertible into other
       securities of ACE INA and/or exchangeable for securities of ACE or
       other issuers and, if so, the terms and conditions upon which such
       ACE INA debt securities will be so convertible or exchangeable;

                                       38
<PAGE>

    .  if other than the principal amount, the portion of the principal
       amount (or the method by which such portion will be determined) of
       such ACE INA debt securities that will be payable upon declaration of
       acceleration of the maturity thereof;

    .  if other than United States dollars, the currency of payment,
       including composite currencies, of the principal of, any premium or
       interest on or any additional amounts with respect to any of such ACE
       INA debt securities;

    .  whether the principal of, any premium or interest on or any
       additional amounts with respect to such ACE INA debt securities will
       be payable, at the election of ACE INA or a holder, in a currency
       other than that in which such ACE INA debt securities are stated to
       be payable and the date or dates on which, the period or periods
       within which, and the other terms and conditions upon which, such
       election may be made;

    .  any index, formula or other method used to determine the amount of
       payments of principal of, any premium or interest on or any
       additional amounts with respect to such ACE INA debt securities;

    .  whether such ACE INA debt securities are to be issued in the form of
       one or more global securities and, if so, the identity of the
       depositary for such global security or securities;

    .  whether such ACE INA debt securities are ACE INA senior debt
       securities or ACE INA subordinated debt securities and, if ACE INA
       subordinated debt securities, the specific subordination provisions
       applicable thereto;

    .  in the case of ACE INA subordinated debt securities issued to an ACE
       Trust, the terms and conditions of any obligation or right of ACE INA
       or a holder to convert or exchange such ACE INA subordinated debt
       securities into preferred securities of that ACE Trust;

    .  in the case of ACE INA subordinated debt securities issued to an ACE
       Trust, the form of restated trust agreement and, if applicable, the
       agreement relating to ACE's guarantee of the preferred securities of
       that ACE Trust;

    .  in the case of ACE INA subordinated debt securities, the relative
       degree, if any, to which such ACE INA subordinated debt securities of
       the series and the ACE guarantee in respect thereof will be senior to
       or be subordinated to other series of ACE INA subordinated debt
       securities and the ACE guarantee in respect thereof or other
       indebtedness of ACE INA or ACE, as the case may be, in right of
       payment, whether such other series of ACE INA subordinated debt
       securities or other indebtedness is outstanding or not;

    .  any deletions from, modifications of or additions to the Events of
       Default or covenants of ACE INA or ACE with respect to such ACE INA
       debt securities;

    .  whether the provisions described below under "Discharge, Defeasance
       and Covenant Defeasance" will be applicable to such ACE INA debt
       securities;

    .  whether any of such ACE INA debt securities are to be issued upon the
       exercise of warrants, and the time, manner and place for such ACE INA
       debt securities to be authenticated and delivered; and

    .  any other terms of such ACE INA debt securities and any other
       deletions from or modifications or additions to the applicable ACE
       INA indenture in respect of such ACE INA debt securities. (Section
       3.1)

      ACE INA will have the ability under the ACE INA indentures to "reopen" a
previously issued series of ACE INA debt securities and issue additional ACE
INA debt securities of that series or establish additional terms of that
series. ACE INA is also permitted to issue ACE INA debt securities with the
same terms as previously issued ACE INA debt securities. (Section 3.1)

      Unless otherwise provided in the related prospectus supplement,
principal, premium, interest and additional amounts, if any, with respect to
any ACE INA debt securities will be payable at the office or agency maintained
by ACE INA and ACE for such purposes (initially the corporate trust office of
the trustee). In the

                                       39
<PAGE>

case of ACE INA debt securities issued in registered form, interest may be paid
by check mailed to the persons entitled thereto at their addresses appearing on
the security register or by transfer to an account maintained by the payee with
a bank located in the United States. Interest on ACE INA debt securities issued
in registered form will be payable on any interest payment date to the persons
in whose names the ACE INA debt securities are registered at the close of
business on the regular record date with respect to such interest payment date.
All paying agents initially designated by ACE INA for the ACE INA debt
securities will be named in the related prospectus supplement. ACE INA may at
any time designate additional paying agents or rescind the designation of any
paying agent or approve a change in the office through which any paying agent
acts, except that ACE INA and ACE will be required to maintain a paying agent
in each place where the principal of, any premium or interest on or any
additional amounts with respect to the ACE INA debt securities are payable.
(Sections 3.7 and 10.2)

      Unless otherwise provided in the related prospectus supplement, the ACE
INA debt securities may be presented for transfer (duly endorsed or accompanied
by a written instrument of transfer, if so required by ACE INA or the security
registrar) or exchanged for other ACE INA debt securities of the same series
(containing identical terms and provisions, in any authorized denominations,
and of a like aggregate principal amount) at the office or agency maintained by
ACE INA for such purposes (initially the corporate trust office of the
trustee). Such transfer or exchange will be made without service charge, but
ACE INA may require payment of a sum sufficient to cover any tax or other
governmental charge and any other expenses then payable. ACE INA will not be
required to (1) issue, register the transfer of, or exchange, ACE INA debt
securities during a period beginning at the opening of business 15 days before
the day of mailing of a notice of redemption of any such ACE INA debt
securities and ending at the close of business on the day of such mailing or
(2) register the transfer of or exchange any ACE INA debt security so selected
for redemption in whole or in part, except the unredeemed portion of any ACE
INA debt security being redeemed in part. (Section 3.5) ACE INA has appointed
the trustee as security registrar. Any transfer agent (in addition to the
security registrar) initially designated by ACE INA for any ACE INA debt
securities will be named in the related prospectus supplement. ACE INA may at
any time designate additional transfer agents or rescind the designation of any
transfer agent or approve a change in the office through which any transfer
agent acts, except that ACE INA and ACE will be required to maintain a transfer
agent in each place where the principal of, any premium or interest on or any
additional amounts with respect to the ACE INA debt securities are payable.
(Section 10.2)

      Unless otherwise provided in the related prospectus supplement, the ACE
INA debt securities will be issued only in fully registered form without
coupons in minimum denominations of $1,000 and any integral multiple thereof.
(Section 3.2) The ACE INA debt securities may be represented in whole or in
part by one or more global ACE INA debt securities registered in the name of a
depositary or its nominee and, if so represented, interests in such global ACE
INA debt security will be shown on, and transfers thereof will be effected only
through, records maintained by the designated depositary and its participants
as described below. Where ACE INA debt securities of any series are issued in
bearer form, the special restrictions and considerations, including special
offering restrictions and special United States Federal income tax
considerations, applicable to such ACE INA debt securities and to payment on
and transfer and exchange of such ACE INA debt securities will be described in
the related prospectus supplement.

      The ACE INA debt securities may be issued as original issue discount
securities (bearing no interest or bearing interest at a rate which at the time
of issuance is below market rates) to be sold at a substantial discount below
their principal amount. Special United States Federal income tax and other
considerations applicable to original issue discount securities will be
described in the related prospectus supplement.

      If the purchase price of any ACE INA debt securities is payable in one or
more foreign currencies or currency units or if any ACE INA debt securities are
denominated in one or more foreign currencies or currency units or if the
principal of, or any premium or interest on, or any additional amounts with
respect to, any ACE INA debt securities is payable in one or more foreign
currencies or currency units, the restrictions, elections, certain United
States Federal income tax considerations, specific terms and other information
with respect to such ACE INA debt securities and such foreign currency or
currency units will be set forth in the related prospectus supplement.

                                       40
<PAGE>

      ACE INA will comply with Section 14(e) under the Exchange Act, and any
other tender offer rules under the Exchange Act which may then be applicable,
in connection with any obligation of ACE INA to purchase ACE INA debt
securities at the option of the holders. Any such obligation applicable to a
series of ACE INA debt securities will be described in the related prospectus
supplement.

      Unless otherwise described in a prospectus supplement relating to any ACE
INA debt securities, other than as described below under "--Covenants
Applicable to ACE INA Senior Debt Securities--Limitation on Liens on Stock of
Designated Subsidiaries," the ACE INA indentures do not contain any provisions
that would limit the ability of ACE INA or ACE to incur indebtedness or that
would afford holders of ACE INA debt securities protection in the event of a
sudden and significant decline in the credit quality of ACE INA or ACE or a
takeover, recapitalization or highly leveraged or similar transaction involving
ACE INA or ACE. Accordingly, ACE INA or ACE could in the future enter into
transactions that could increase the amount of indebtedness outstanding at that
time or otherwise affect ACE INA's or ACE's capital structure or credit rating.
You should refer to the prospectus supplement relating to a particular series
of ACE INA debt securities for information regarding any deletions from,
modifications of or additions to the Events of Defaults described below or
covenants of ACE INA or ACE contained in the ACE INA indentures, including any
addition of a covenant or other provisions providing event risk or similar
protection.

ACE Guarantee

      ACE will fully and unconditionally guarantee all payments with respect to
the ACE INA debt securities. Unless otherwise provided in a prospectus
supplement, the ACE guarantee of the ACE INA senior debt securities will be an
unsecured obligation of ACE and will rank equally with all of its other
unsecured and unsubordinated indebtedness (including the ACE senior debt
securities). The ACE guarantee of the ACE INA subordinated debt securities of
any particular series will be an unsecured obligation of ACE, subordinated in
right of payment to the prior payment in full of all ACE Senior Indebtedness
(which term includes ACE senior debt securities and the ACE guarantee of the
ACE INA senior debt securities) with respect to such series as described below
under "Subordination of ACE Guarantee" and in the related prospectus
supplement. The ACE guarantee of the ACE INA subordinated debt securities of
any series issued to an ACE Trust will rank equally with the ACE guarantee of
each other series of ACE subordinated debt securities issued to other ACE
Trusts.

      Since ACE is a holding company, its rights and the rights of its
creditors (including the holders of the ACE INA debt securities who are
creditors of ACE by virtue of the ACE guarantee) and shareholders to
participate in any distribution of the assets of any subsidiary upon such
subsidiary's liquidation or reorganization or otherwise would be subject to
prior claims of the subsidiary's creditors, except to the extent that ACE may
itself be a creditor with recognized claims against the subsidiary. The right
of creditors of ACE (including the holders of the ACE INA debt securities who
are creditors of ACE by virtue of the ACE guarantee) to participate in the
distribution of the stock owned by ACE in certain of its subsidiaries,
including ACE's insurance subsidiaries, may also be subject to approval by
certain insurance regulatory authorities having jurisdiction over such
subsidiaries.

      ACE will make all payments of principal of and premium, if any, interest
and any other amounts on, or in respect of, the ACE INA debt securities of any
series without withholding or deduction at source for, or on account of, any
present or future taxes, fees, duties, assessments or governmental charges of
whatever nature imposed or levied by or on behalf of the Cayman Islands or
Bermuda (each, a "taxing jurisdiction") or any political subdivision or taxing
authority thereof or therein, unless such taxes, fees, duties, assessments or
governmental charges are required to be withheld or deducted by (x) the laws
(or any regulations or rulings promulgated thereunder) of a taxing jurisdiction
or any political subdivision or taxing authority thereof or therein or (y) an
official position regarding the application, administration, interpretation or
enforcement of any such laws, regulations or rulings (including, without
limitation, a holding by a court of competent jurisdiction or by a taxing
authority in a taxing jurisdiction or any political subdivision thereof). If a
withholding or deduction at source is required, ACE will, subject to certain
limitations and exceptions described below, pay to the holder of any such ACE
INA debt security such additional amounts as may be necessary so that every net

                                       41
<PAGE>

payment of principal, premium, if any, interest or any other amount made to
such holder, after the withholding or deduction, will not be less than the
amount provided for in such ACE INA debt security and the applicable ACE INA
indenture to be then due and payable.

      ACE will not be required to pay any additional amounts for or on account
of:

      1. any tax, fee, duty, assessment or governmental charge of whatever
    nature which would not have been imposed but for the fact that such
    holder (a) was a resident, domiciliary or national of, or engaged in
    business or maintained a permanent establishment or was physically
    present in, the relevant taxing jurisdiction or any political
    subdivision thereof or otherwise had some connection with the relevant
    taxing jurisdiction other than by reason of the mere ownership of, or
    receipt of payment under, such ACE INA debt security, (b) presented such
    ACE INA debt security for payment in the relevant taxing jurisdiction or
    any political subdivision thereof, unless such ACE INA debt security
    could not have been presented for payment elsewhere, or (c) presented
    such ACE INA debt security for payment more than 30 days after the date
    on which the payment in respect of such ACE INA debt security became due
    and payable or provided for, whichever is later, except to the extent
    that the holder would have been entitled to such additional amounts if
    it had presented such ACE INA debt security for payment on any day
    within that 30-day period;

      2. any estate, inheritance, gift, sale, transfer, personal property or
    similar tax, assessment or other governmental charge;

      3. any tax, assessment or other governmental charge that is imposed or
    withheld by reason of the failure by the holder or the beneficial owner
    of such ACE INA debt security to comply with any reasonable request by
    ACE addressed to the holder within 90 days of such request (a) to
    provide information concerning the nationality, residence or identity of
    the holder or such beneficial owner or (b) to make any declaration or
    other similar claim or satisfy any information or reporting requirement,
    which in either case is required or imposed by statute, treaty,
    regulation or administrative practice of the relevant taxing
    jurisdiction or any political subdivision thereof as a precondition to
    exemption from all or part of such tax, assessment or other governmental
    charge; or

      4. any combination of items (1), (2) and (3).

      In addition, ACE will not pay additional amounts with respect to any
payment of principal of, or premium, if any, interest or any other amounts on,
any such ACE INA debt security to any holder who is a fiduciary or partnership
or other than the sole beneficial owner of such ACE INA debt security to the
extent such payment would be required by the laws of the relevant taxing
jurisdiction (or any political subdivision or relevant taxing authority thereof
or therein) to be included in the income for tax purposes of a beneficiary or
partner or settlor with respect to such fiduciary or a member of such
partnership or a beneficial owner who would not have been entitled to such
additional amounts had it been the holder of the ACE INA debt security.
(Section 10.4)

Conversion and Exchange

      The terms, if any, on which ACE INA debt securities of any series are
convertible into or exchangeable for other securities, whether or not issued by
ACE INA, property or cash, or a combination of any of the foregoing, will be
set forth in the related prospectus supplement. Such terms may include
provisions for conversion or exchange, either mandatory, at the option of the
holder, or at the option of ACE INA, in which the securities, property or cash
to be received by the holders of the ACE INA debt securities would be
calculated according to the factors and at such time as described in the
related prospectus supplement.

Global Securities

      The ACE INA debt securities of a series may be issued in whole or in part
in the form of one or more global ACE INA debt securities that will be
deposited with, or on behalf of, a depositary identified in the prospectus
supplement relating to such series.

                                       42
<PAGE>

      The specific terms of the depositary arrangement with respect to a series
of ACE INA debt securities will be described in the prospectus supplement
relating to such series. ACE INA anticipates that the following provisions will
apply to all depositary arrangements.

      Upon the issuance of a global security, the depositary for such global
security or its nominee will credit, on its book-entry registration and
transfer system, the respective principal amounts of the ACE INA debt
securities represented by such global security. Such accounts will be
designated by the underwriters or agents with respect to such ACE INA debt
securities or by ACE INA if such ACE INA debt securities are offered and sold
directly by ACE INA. Ownership of beneficial interests in a global security
will be limited to persons that may hold interests through participants.
Ownership of beneficial interests in such global security will be shown on, and
the transfer of that ownership will be effected only through, records
maintained by the depositary or its nominee (with respect to interests of
participants) and on the records of participants (with respect to interests of
persons other than participants). The laws of some states require that certain
purchasers of securities take physical delivery of such securities in
definitive form. Such limits and such laws may impair the ability to transfer
beneficial interests in a global security.

      So long as the depositary for a global security, or its nominee, is the
registered owner of such global security, such depositary or such nominee, as
the case may be, will be considered the sole owner or holder of the ACE INA
debt securities represented by such global security for all purposes under the
applicable ACE INA indenture. Except as described below, owners of beneficial
interests in a global security will not be entitled to have ACE INA debt
securities of the series represented by such global security registered in
their names and will not receive or be entitled to receive physical delivery of
ACE INA debt securities of that series in definitive form.

      Principal of, any premium and interest on, and any additional amounts
with respect to, ACE INA debt securities registered in the name of a depositary
or its nominee will be made to the depositary or its nominee, as the case may
be, as the registered owner of the global security representing such ACE INA
debt securities. None of ACE INA, ACE, the trustee, any paying agent or the
security registrar will have any responsibility or liability for any aspect of
the records relating to or payments made on account of beneficial ownership
interests of the global security for such ACE INA debt securities or for
maintaining, supervising or reviewing any records relating to such beneficial
ownership interests.

      ACE INA expects that the depositary for a series of ACE INA debt
securities or its nominee, upon receipt of any payment with respect to such ACE
INA debt securities, will credit immediately participants' accounts with
payments in amounts proportionate to their respective beneficial interest in
the principal amount of the global security for such ACE INA debt securities as
shown on the records of such depositary or its nominee. ACE INA also expects
that payments by participants to owners of beneficial interests in such global
security held through such participants will be governed by standing
instructions and customary practices, as is now the case with securities held
for the accounts of customers registered in "street name," and will be the
responsibility of such participants.

      The ACE INA indentures provide that if (1) the depositary for a series of
ACE INA debt securities notifies ACE INA that it is unwilling or unable to
continue as depositary or if such depositary ceases to be eligible under the
applicable ACE INA Indenture and a successor depositary is not appointed by ACE
INA within 90 days of written notice, (2) ACE INA determines that ACE INA debt
securities of a particular series will no longer be represented by global
securities and executes and delivers to the trustee a company order to such
effect or (3) an Event of Default with respect to a series of ACE INA debt
securities will have occurred and be continuing, the global securities will be
exchanged for ACE INA debt securities of such series in definitive form of like
tenor and of an equal aggregate principal amount, in authorized denominations.
Such definitive ACE INA debt securities will be registered in such name or
names as the depositary shall instruct the trustee. (Section 3.5) It is
expected that such instructions may be based upon directions received by the
depositary from participants with respect to ownership of beneficial interests
in global securities.

                                       43
<PAGE>

Option to Extend Interest Payment Date

      If provided in the related prospectus supplement, ACE INA will have the
right at any time and from time to time during the term of any series of ACE
INA subordinated debt securities issued to an ACE Trust to defer payment of
interest for such number of consecutive interest payment periods as may be
specified in the related prospectus supplement (each, an "Extension Period"),
subject to the terms, conditions and covenants, if any, specified in such
prospectus supplement, provided that such Extension Period may not extend
beyond the stated maturity of such series of ACE INA subordinated debt
securities. Certain United States Federal income tax consequences and special
considerations applicable to such ACE INA subordinated debt securities will be
described in the related prospectus supplement. (Section 3.11 of the ACE INA
subordinated indenture)

Option to Extend Maturity Date

      If provided in the related prospectus supplement, ACE INA will have the
right to (x) change the stated maturity of the principal of the ACE INA
subordinated debt securities of any series issued to an ACE Trust upon the
liquidation of that ACE Trust and the exchange of the ACE INA subordinated debt
securities for the preferred securities of that ACE Trust or (y) extend the
stated maturity of the principal of the ACE INA subordinated debt securities of
any series, provided that (1) neither ACE INA nor ACE is in bankruptcy,
otherwise insolvent or in liquidation; (2) neither ACE INA nor ACE has
defaulted on any payment on such ACE INA subordinated debt securities or under
ACE's guarantee in respect thereof, as the case may be, and no deferred
interest payments have accrued, (3) the applicable ACE Trust is not in arrears
on payments of distributions on its preferred securities and no deferred
distributions have accumulated, (4) the ACE INA subordinated debt securities of
such series are rated investment grade by Standard & Poor's Ratings Services,
Moody's Investors Service, Inc. or another nationally recognized statistical
rating organization and (5) the extended stated maturity is no later than the
49th anniversary of the initial issuance of the preferred securities of the
applicable ACE Trust. If ACE INA exercises its right to liquidate the
applicable ACE Trust and exchange the ACE INA subordinated debt securities for
the preferred securities of the ACE Trust as described above, any changed
stated maturity of the principal of the ACE INA subordinated debt securities
shall be no earlier than the date that is five years after the initial issue
date of the preferred securities and no later than the date 30 years (plus an
extended term of up to an additional 19 years if the conditions described above
are satisfied) after the initial issue date of the preferred securities of the
applicable ACE Trust. (Section 3.14 of the ACE INA subordinated indenture)

Redemption

      Except as otherwise provided in the related prospectus supplement, in the
case of any series of ACE INA subordinated debt securities issued to an ACE
Trust, if an Investment Company Event or a Tax Event (each, a "Special Event")
shall occur and be continuing, ACE INA may, at its option, redeem such series
of ACE INA subordinated debt securities, in whole but not in part, at any time
within 90 days of the occurrence of the Special Event, at a redemption price
equal to 100% of the principal amount of such ACE INA subordinated debt
securities then outstanding plus accrued and unpaid interest to the date fixed
for redemption. (Section 11.8 of the ACE INA subordinated indenture)

      For purposes of the ACE INA subordinated indenture, "Investment Company
Event" means, in respect of an ACE Trust, the receipt by such ACE Trust of an
opinion of independent counsel experienced in such matters to the effect that,
as a result of the occurrence of a change in law or regulation or a change in
the interpretation or application of law or regulation by any legislative body,
court or governmental agency or regulatory authority, such ACE Trust is or will
be considered an investment company that is required to be registered under the
Investment Company Act, which change becomes effective on or after the date of
original issuance of the preferred securities of such ACE Trust. (Section 1.1
of the ACE INA subordinated indenture)

      "Tax Event" means, in respect of an ACE Trust, the receipt by such ACE
Trust or ACE INA of an opinion of independent counsel experienced in such
matters to the effect that, as a result of any amendment to, or change
(including any announced prospective change) in, the laws (or any regulation
thereunder) of the United States or any political subdivision or taxing
authority thereof or therein, or as a result of any official

                                       44
<PAGE>

administrative pronouncement or judicial decision interpreting or applying such
laws or regulations, which amendment or change is effective or which
pronouncement or decision is announced on or after the date of original
issuance of the preferred securities of such ACE Trust, there is more than an
insubstantial risk that (i) such ACE Trust is, or will be within 90 days of the
date of such opinion, subject to United States Federal income tax with respect
to income received or accrued on the corresponding series of ACE INA
subordinated debt securities, (ii) interest payable by ACE INA on such ACE INA
subordinated debt securities is not, or within 90 days of the date of such
opinion will not be, deductible by ACE INA, in whole or in part, for United
States Federal income tax purposes or (iii) such ACE Trust is, or will be
within 90 days of the date of such opinion, subject to more than a de minimus
amount of other taxes, duties or other governmental charges. (Section 1.1 of
the ACE INA subordinated indenture)

      Notice of any redemption will be mailed at least 30 days but not more
than 60 days before the redemption date to each holder of ACE INA subordinated
debt securities to be redeemed at its registered address. Unless ACE INA and
ACE, as guarantor, default in payment of the redemption price, on and after the
redemption date interest will cease to accrue on the ACE INA subordinated debt
securities or portions thereof called for redemption.

Covenants Applicable to ACE INA Senior Debt Securities

      Limitation on Liens on Stock of Designated Subsidiaries

      Under the ACE INA senior indenture, each of ACE INA and ACE will covenant
that, so long as any ACE INA senior debt securities are outstanding, it will
not, nor will it permit any of its Subsidiaries to, create, assume, incur,
guarantee or otherwise permit to exist any Indebtedness secured by any
mortgage, pledge, lien, security interest or other encumbrance upon any shares
of capital stock of any Designated Subsidiary (whether such shares are now
owned or hereafter acquired) without effectively providing concurrently that
the ACE INA senior debt securities (and, if ACE INA and ACE so elect, any other
Indebtedness of ACE INA that is not subordinate to the ACE INA senior debt
securities and with respect to which the governing instruments require, or
pursuant to which ACE INA is otherwise obligated, to provide such security)
will be secured equally and ratably with such Indebtedness for at least the
time period such other Indebtedness is so secured. (Section 10.5 of the ACE INA
senior indenture)

      For purposes of the ACE INA senior indenture, "capital stock" of any
Person means any and all shares, interests, rights to purchase, warrants,
options, participations or other equivalents of or interests in (however
designated) equity of such Person, including preferred stock, but excluding any
debt securities convertible into such equity. (Section 1.1 of the ACE INA
senior indenture)

      The term "Designated Subsidiary" means any present or future consolidated
Subsidiary of ACE, the Consolidated Net Worth of which constitutes at least 5%
of ACE's Consolidated Net Worth. (Section 1.1 of the ACE INA senior indenture)
As of July 31, 1999, ACE's Designated Subsidiaries were ACE Bermuda, CODA,
Tempest, ACE INA and ACE USA.

      For purposes of the ACE INA indentures, the term "Indebtedness" means,
with respect to any Person, (1) the principal of and any premium and interest
on (a) indebtedness of such Person for money borrowed and (b) indebtedness
evidenced by notes, debentures, bonds or other similar instruments for the
payment of which such Person is responsible or liable; (2) all Capitalized
Lease Obligations of such Person; (3) all obligations of such Person issued or
assumed as the deferred purchase price of property, all conditional sale
obligations and all obligations under any title retention agreement (but
excluding trade accounts payable arising in the ordinary course of business);
(4) all obligations of such Person for the reimbursement of any obligor on any
letter of credit, banker's acceptance or similar credit transaction (other than
obligations with respect to letters of credit securing obligations (other than
obligations described in (1) through (3) above) entered into in the ordinary
course of business of such Person to the extent such letters of credit are not
drawn upon or, if and to the extent drawn upon, such drawing is reimbursed no
later than the third Business Day following receipt by such Person

                                       45
<PAGE>

of a demand for reimbursement following payment on the letter of credit); (5)
all obligations of the type referred to in clauses (1) through (4) of other
Persons and all dividends of other Persons for the payment of which, in either
case, such Person is responsible or liable as obligor, guarantor or otherwise;
(6) all obligations of the type referred to in clauses (1) through (5) of other
Persons secured by any mortgage, pledge, lien, security interest or other
encumbrance on any property or asset of such Person (whether or not such
obligation is assumed by such Person), the amount of such obligation being
deemed to be the lesser of the value of such property or assets or the amount
of the obligation so secured; and (7) any amendments, modifications,
refundings, renewals or extensions of any indebtedness or obligation described
as Indebtedness in clauses (1) through (6) above. (Section 1.1)

      Limitations on Disposition of Stock of Designated Subsidiaries

      The ACE INA senior indenture also provides that, so long as any ACE INA
senior debt securities are outstanding and except in a transaction otherwise
governed by such indenture, neither ACE INA nor ACE will issue, sell, assign,
transfer or otherwise dispose of any shares of, securities convertible into, or
warrants, rights or options to subscribe for or purchase shares of, capital
stock (other than preferred stock having no voting rights of any kind) of any
Designated Subsidiary, and will not permit any Designated Subsidiary to issue
(other than to ACE INA or ACE) any shares (other than director's qualifying
shares) of, or securities convertible into, or warrants, rights or options to
subscribe for or purchase shares of, capital stock (other than preferred stock
having no voting rights of any kind) of any Designated Subsidiary, if, after
giving effect to any such transaction and the issuance of the maximum number of
shares issuable upon the conversion or exercise of all such convertible
securities, warrants, rights or options, ACE would own, directly or indirectly,
less than 80% of the shares of capital stock of such Designated Subsidiary
(other than preferred stock having no voting rights of any kind); provided,
however, that (1) any issuance, sale, assignment, transfer or other disposition
permitted by ACE INA or ACE may only be made for at least a fair market value
consideration as determined by the board of directors of ACE INA or ACE, as the
case may be, pursuant to a resolution adopted in good faith and (2) the
foregoing shall not prohibit any such issuance or disposition of securities if
required by any law or any regulation or order of any governmental or insurance
regulatory authority. Notwithstanding the foregoing, (1) ACE INA or ACE, as the
case may be, may merge or consolidate any Designated Subsidiary into or with
another direct or indirect Subsidiary of ACE, the shares of capital stock of
which ACE owns at least 80%, and (2) ACE INA or ACE, as the case may be, may,
subject to the provisions described under "--Consolidation, Amalgamation,
Merger and Sale of Assets" below, sell, assign, transfer or otherwise dispose
of the entire capital stock of any Designated Subsidiary at one time for at
least a fair market value consideration as determined by the board of directors
of ACE INA or ACE, as the case may be, pursuant to a resolution adopted in good
faith. (Section 10.6 of the ACE INA senior indenture)

Covenants Applicable to ACE INA Subordinated Debt Securities Issued to an ACE
Trust

      Each of ACE INA and ACE will also covenant, as to each series of ACE INA
subordinated debt securities issued to an ACE Trust in connection with the
issuance of preferred securities and common securities by that ACE Trust, that
it will not, and will not permit any of its Subsidiaries to, (1) declare or pay
any dividends or distributions on, or redeem, purchase, acquire or make a
liquidation payment with respect to, any of the outstanding capital stock of
ACE INA or ACE, as the case may be, or (2) make any payment of principal of, or
interest or premium, if any, on or repay, repurchase or redeem any debt
security of ACE INA or ACE that ranks junior in interest to the ACE INA
subordinated debt securities of such series or the ACE guarantee in respect
thereof, as the case may be, or make any guarantee payments with respect to any
guarantee by ACE INA or ACE, as the case may be, of the debt securities of any
Subsidiary of ACE INA or ACE, as the case may be, if such guarantee ranks
junior in interest to the ACE INA subordinated debt securities of such series
or the ACE guarantee in respect thereof, as the case may be (other than (a)
dividends or distributions on the capital stock of ACE INA paid or made to ACE
and dividends or distributions in common stock of ACE INA or ordinary shares of
ACE, as the case may be, (b) redemptions or purchases of any rights outstanding
under a shareholder rights plan of ACE INA or ACE, as the case may be, or the
declaration of a dividend of such rights or the issuance of stock under such
plans in the future, (c) payments under any preferred securities

                                       46
<PAGE>

guarantee and (d) purchases of common stock or ordinary shares related to the
issuance of common stock or ordinary shares under any of ACE INA's or ACE's
benefit plans for its directors, officers or employees) if at such time (i)
there shall have occurred any event of which ACE INA or ACE has actual
knowledge that (A) with the giving of notice or lapse of time or both would
constitute an Event of Default and (B) in respect of which ACE INA or ACE, as
the case may be, shall not have taken reasonable steps to cure, (ii) ACE shall
be in default with respect to its payment of any obligations under the
preferred securities guarantee relating to such related preferred securities or
(iii) ACE INA shall have given notice of its election to begin an Extension
Period as provided in the ACE INA subordinated indenture with respect to the
ACE INA subordinated debt securities of such series and shall not have
rescinded such notice, or such Extension Period, or any extension thereof,
shall be continuing. (Section 10.9 of the ACE INA subordinated indenture)

      In the event ACE INA subordinated debt securities are issued to an ACE
Trust in connection with the issuance of preferred securities and common
securities of such ACE Trust, for so long as such ACE INA subordinated debt
securities remain outstanding, ACE INA will also covenant (1) to maintain
directly or indirectly 100% ownership of the common securities of such ACE
Trust; provided, however, that any permitted successor of ACE INA under the ACE
INA subordinated indenture may succeed to ACE INA's ownership of such common
securities, (2) not to voluntarily dissolve, wind-up or liquidate such ACE
Trust, except in connection with the distribution of ACE INA subordinated debt
securities to the holders of preferred securities and common securities in
liquidation of such ACE Trust, the redemption of all of the preferred
securities and common securities of such ACE Trust, or certain mergers,
consolidations or amalgamations, each as permitted by the restated trust
agreement of such ACE Trust, and (3) to use its reasonable efforts, consistent
with the terms of the related trust agreement, to cause such ACE Trust to
remain classified as a grantor trust for United States Federal income tax
purposes. (Section 10.9 of the ACE INA subordinated indenture)

Consolidation, Amalgamation, Merger and Sale of Assets

      Each ACE INA indenture provides that ACE INA may not (1) consolidate or
amalgamate with or merge into any Person or convey, transfer or lease its
properties and assets as an entirety or substantially as an entirety to any
Person, or (2) permit any Person to consolidate or amalgamate with or merge
into ACE INA, or convey, transfer or lease its properties and assets as an
entirety or substantially as an entirety to ACE INA, unless (a) in the case of
(1) above, such Person is a Corporation organized and existing under the laws
of the United States of America, any State thereof or the District of Columbia
and will expressly assume, by supplemental indenture satisfactory in form to
the trustee, the due and punctual payment of the principal of, any premium and
interest on and any additional amounts with respect to all of the ACE INA debt
securities issued thereunder, and the performance of ACE INA's obligations
under such ACE INA indenture and the ACE INA debt securities issued thereunder,
and provides for conversion or exchange rights in accordance with the
provisions of the ACE INA debt securities of any series that are convertible or
exchangeable into ordinary shares or other securities; (b) immediately after
giving effect to such transaction and treating any indebtedness which becomes
an obligation of ACE INA or a Subsidiary as a result of such transaction as
having been incurred by ACE INA or such Subsidiary at the time of such
transaction, no Event of Default, and no event which after notice or lapse of
time or both would become an Event of Default, shall have happened and be
continuing; and (c) certain other conditions are met. (Section 8.1)

      Each ACE INA indenture provides that ACE may not (1) consolidate or
amalgamate with or merge into any Person or convey, transfer or lease its
properties and assets as an entirety or substantially as an entirety to any
Person, or (2) permit any Person to consolidate or amalgamate with or merge
into ACE, or convey, transfer or lease its properties and assets as an entirety
or substantially as an entirety to ACE, unless (a) in the case of (1) above,
such Person is a Corporation organized and existing under the laws of the
United States of America, any State thereof or the District of Columbia,
Bermuda or the Cayman Islands and will expressly assume, by supplemental
indenture satisfactory in form to the trustee, the due and punctual payment of
the principal of, any premium and interest on and any additional amounts with
respect to all of the ACE INA debt securities issued thereunder, and the
performance of ACE's obligations under such ACE INA indenture and the

                                       47
<PAGE>

ACE INA debt securities issued thereunder; (b) immediately after giving effect
to such transaction and treating any indebtedness which becomes an obligation
of ACE or a Subsidiary as a result of such transaction as having been incurred
by ACE or such Subsidiary at the time of such transaction, no Event of Default,
and no event which after notice or lapse of time or both would become an Event
of Default, shall have happened and be continuing; and (c) certain other
conditions are met. (Section 8.3)

Events of Default

      Each of the following events will constitute an Event of Default under
the applicable ACE INA indenture with respect to any series of ACE INA debt
securities issued thereunder (whatever the reason for such Event of Default and
whether it shall be voluntary or involuntary or be effected by operation of law
or pursuant to any judgment, decree or order of any court or any order, rule or
regulation of any administrative or governmental body):

    (1) default in the payment of any interest on any ACE INA debt security
        of such series, or any additional amounts payable with respect
        thereto, when such interest becomes or such additional amounts
        become due and payable, and continuance of such default for a period
        of 30 days;

    (2) default in the payment of the principal of or any premium on any ACE
        INA debt security of such series, or any additional amounts payable
        with respect thereto, when such principal or premium becomes or such
        additional amounts become due and payable either at maturity, upon
        any redemption, by declaration of acceleration or otherwise;

    (3) default in the deposit of any sinking fund payment, when and as due
        by the terms of any ACE INA debt security of such series;

    (4) default in the performance, or breach, of any covenant or warranty
        of ACE INA or ACE contained in the applicable ACE INA indenture for
        the benefit of such series or in the ACE INA debt securities of such
        series, and the continuance of such default or breach for a period
        of 60 days after there has been given written notice as provided in
        such ACE INA indenture;

    (5) if any event of default as defined in any mortgage, indenture or
        instrument under which there may be issued, or by which there may be
        secured or evidenced, any Indebtedness of ACE INA or ACE (including
        an Event of Default under any other series of ACE INA debt
        securities), whether such Indebtedness now exists or is hereafter
        created or incurred, happens and consists of default in the payment
        of more than $50,000,000 in principal amount of such Indebtedness at
        the maturity thereof (after giving effect to any applicable grace
        period) or results in such Indebtedness in principal amount in
        excess of $50,000,000 becoming or being declared due and payable
        prior to the date on which it would otherwise become due and
        payable, and such default is not cured or such acceleration is not
        rescinded or annulled within a period of 30 days after there has
        been given written notice as provided in the applicable ACE INA
        indenture;

    (6) ACE INA or ACE shall fail within 60 days to pay, bond or otherwise
        discharge any uninsured judgment or court order for the payment of
        money in excess of $50,000,000, which is not stayed on appeal or is
        not otherwise being appropriately contested in good faith;

    (7) certain events in bankruptcy, insolvency or reorganization of ACE
        INA or ACE; and

    (8) any other Event of Default provided in or pursuant to the applicable
        ACE INA indenture with respect to ACE INA debt securities of such
        series. (Section 5.1)

      If an Event of Default with respect to the ACE INA debt securities of any
series (other than an Event of Default described in (7) of the preceding
paragraph) occurs and is continuing, either the trustee or the holders of not
less than 25% in principal amount of the outstanding ACE INA debt securities of
such series by written notice as provided in the applicable ACE INA indenture
may declare the principal amount (or such lesser amount as may be provided for
in the ACE INA debt securities of such series) of all outstanding ACE

                                       48
<PAGE>

INA debt securities of such series to be due and payable immediately. In the
case of an Event of Default with respect to a series of ACE INA subordinated
debt securities issued to an ACE Trust, if the trustee or such holders fail to
declare such principal amount (or lesser amount) to be due and payable
immediately, the holders of at least 25% in liquidation amount of the
outstanding preferred securities of the ACE Trust may do so by written notice
as provided in the ACE INA subordinated indenture. At any time after a
declaration of acceleration has been made, but before a judgment or decree for
payment of money has been obtained by the trustee, and subject to applicable
law and certain other provisions of the applicable ACE INA indenture, the
holders of not less than a majority in principal amount of the outstanding ACE
INA debt securities of such series may, under certain circumstances, rescind
and annul such declaration of acceleration. In the case of a series of ACE INA
subordinated debt securities issued to an ACE Trust, if such holders fail to
rescind and annul such declaration, the holders of a majority in liquidation
amount of the outstanding preferred securities of such ACE Trust may, subject
to satisfaction of certain conditions, rescind and annul such declaration by
written notice as provided in the ACE INA subordinated indenture. An Event of
Default described in (7) of the preceding paragraph shall cause the principal
amount and accrued interest (or such lesser amount as provided for in the ACE
INA debt securities of such series) to become immediately due and payable
without any declaration or other act by the trustee or any holder. (Section
5.2)

      Each ACE INA indenture provides that, within 90 days after the occurrence
of any event which is, or after notice or lapse of time or both would become,
an Event of Default with respect to the ACE INA debt securities of any series
(a "default"), the trustee must transmit, in the manner set forth in such ACE
INA indenture, notice of such default to the holders of the ACE INA debt
securities of such series unless such default has been cured or waived;
provided, however, that except in the case of a default in the payment of
principal of, or premium, if any, or interest, if any, on, or additional
amounts or any sinking fund or purchase fund installment with respect to, any
ACE INA debt security of such series, the trustee may withhold such notice if
and so long as the board of directors, the executive committee or a trust
committee of directors and/or responsible officers of the trustee in good faith
determine that the withholding of such notice is in the best interest of the
holders of ACE INA debt securities of such series; and provided, further, that
in the case of any default of the character described in (5) of the second
preceding paragraph, no such notice to holders will be given until at least 30
days after the default occurs. (Section 6.2)

      If an Event of Default occurs and is continuing with respect to the ACE
INA debt securities of any series, the trustee may in its discretion proceed to
protect and enforce its rights and the rights of the holders of ACE INA debt
securities of such series by all appropriate judicial proceedings. (Section
5.3) Each ACE INA indenture provides that, subject to the duty of the trustee
during any default to act with the required standard of care, the trustee will
be under no obligation to exercise any of its rights or powers under such ACE
INA indenture at the request or direction of any of the holders of ACE INA debt
securities, unless such holders shall have offered to the trustee reasonable
indemnity. (Section 6.1) Subject to such provisions for the indemnification of
the trustee, and subject to applicable law and certain other provisions of the
applicable ACE INA indenture, the holders of a majority in principal amount of
the outstanding ACE INA debt securities of any series will have the right to
direct the time, method and place of conducting any proceeding for any remedy
available to the trustee, or exercising any trust or power conferred on the
trustee, with respect to the ACE INA debt securities of such series. (Section
5.12)

      If an Event of Default with respect to a series of ACE INA subordinated
debt securities issued to an ACE Trust has occurred and is continuing and such
event is attributable to a default in the payment of principal of, any premium
or interest on, or additional amounts with respect to, the related ACE INA
subordinated debt securities on the date such principal, premium, interest or
additional amounts are otherwise payable, a holder of preferred securities of
such ACE Trust may institute directly a legal proceeding against ACE INA or ACE
(pursuant to the ACE guarantee) for enforcement of payment to such holder of
the principal of, any premium and interest on, and additional amounts with
respect to, such related ACE INA subordinated debt securities having a
principal amount equal to the liquidation amount of the related preferred
securities of such holder (a "Direct Action"). (Section 5.8 of the ACE INA
subordinated indenture) ACE INA and ACE may not amend

                                       49
<PAGE>

the ACE INA subordinated indenture to remove the foregoing right to bring a
Direct Action without the prior consent of the holders of all of the
outstanding preferred securities of such ACE Trust. (Section 9.2 of the ACE INA
subordinated indenture) If the right to bring a Direct Action is removed, the
applicable ACE Trust may become subject to the reporting obligations under the
Exchange Act. Each of ACE INA and ACE will have the right under the ACE INA
subordinated indenture to set-off any payment made to such holder of preferred
securities by ACE INA or ACE, as the case may be, in connection with a Direct
Action. (Section 3.12 of the ACE INA subordinated indenture)

      The holders of the preferred securities will not be able to exercise
directly any remedies other than those set forth in the preceding paragraph
available to the holders of the related ACE INA subordinated debt securities.

Modification and Waiver

      ACE INA, ACE and the trustee may modify or amend either ACE INA indenture
with the consent of the holders of not less than a majority in principal amount
of the outstanding ACE INA debt securities of each series affected thereby;
provided, however, that no such modification or amendment may, without the
consent of the holder of each outstanding ACE INA debt security affected
thereby,

    .  change the stated maturity of the principal of, or any premium or
       installment of interest on, or any additional amounts with respect
       to, any ACE INA debt security,

    .  reduce the principal amount of, or the rate (or modify the
       calculation of such rate) of interest on, or any additional amounts
       with respect to, or any premium payable upon the redemption of, any
       ACE INA debt security,

    .  change the obligation of ACE INA or ACE to pay additional amounts
       with respect to any ACE INA debt security,

    .  reduce the amount of the principal of an original issue discount
       security that would be due and payable upon a declaration of
       acceleration of the maturity thereof or the amount thereof provable
       in bankruptcy,

    .  change the redemption provisions of any ACE INA debt security or
       adversely affect the right of repayment at the option of any holder
       of any ACE INA debt security,

    .  change the place of payment or the coin or currency in which the
       principal of, any premium or interest on or any additional amounts
       with respect to any ACE INA debt security is payable,

    .  impair the right to institute suit for the enforcement of any payment
       on or after the stated maturity of any ACE INA debt security (or, in
       the case of redemption, on or after the redemption date or, in the
       case of repayment at the option of any holder, on or after the
       repayment date),

    .  reduce the percentage in principal amount of the outstanding ACE INA
       debt securities, the consent of whose holders is required in order to
       take specific actions,

    .  reduce the requirements for quorum or voting by holders of ACE INA
       debt securities in Section 15.4 of each ACE INA indenture,

    .  modify any of the provisions of the ACE subordinated indenture
       relating to the subordination of the ACE INA debt securities or the
       ACE guarantee in a manner adverse to the holders of ACE INA
       subordinated debt securities,

    .  modify or effect in any manner adverse to the holders of ACE INA debt
       securities the terms and conditions of the obligations of ACE in
       respect of the due and punctual payment of principal of, or any
       premium or interest on, or any sinking fund requirements or
       additional amounts with respect to, the ACE INA debt securities,

                                       50
<PAGE>

    .  modify any of the provisions in the applicable ACE INA indenture
       regarding the waiver of past defaults and the waiver of certain
       covenants by the holders of ACE INA debt securities except to
       increase any percentage vote required or to provide that other
       provisions of such ACE INA indenture cannot be modified or waived
       without the consent of the holder of each ACE INA debt security
       affected thereby,

    .  make any change that adversely affects the right to convert or
       exchange any ACE INA debt security into or for other securities of
       ACE INA, ACE or other securities, cash or property in accordance with
       its terms, or

    .  modify any of the above provisions. (Section 9.2)

      In addition, no supplemental indenture may directly or indirectly modify
or eliminate the subordination provisions of the ACE INA subordinated indenture
in any manner which might terminate or impair the subordination of the ACE INA
subordinated debt securities of any series to Senior Indebtedness with respect
to such series or the subordination of the ACE guarantee with respect to the
ACE INA subordinated debt securities of any series to ACE Senior Indebtedness
with respect to such series, without the prior written consent of the holders
of such Senior Indebtedness or such ACE Senior Indebtedness, respectively.
(Section 9.7 of the ACE INA Subordinated Indenture)

      ACE INA, ACE and the trustee may modify or amend either ACE INA indenture
and the ACE INA debt securities of any series without the consent of any holder
in order to, among other things:

    .  provide for a successor to ACE INA or ACE pursuant to a
       consolidation, amalgamation, merger or sale of assets;

    .  add to the covenants of ACE INA or ACE for the benefit of the holders
       of all or any series of ACE INA debt securities or to surrender any
       right or power conferred upon ACE INA or ACE by the applicable ACE
       INA indenture;

    .  provide for a successor trustee with respect to the ACE INA debt
       securities of all or any series;

    .  cure any ambiguity or correct or supplement any provision in either
       ACE INA indenture which may be defective or inconsistent with any
       other provision, or to make any other provisions with respect to
       matters or questions arising under either ACE INA indenture which
       will not adversely affect the interests of the holders of ACE INA
       debt securities of any series;

    .  change the conditions, limitations and restrictions on the authorized
       amount, terms or purposes of issue, authentication and delivery of
       ACE INA debt securities under either ACE INA indenture;

    .  add any additional Events of Default with respect to all or any
       series of ACE INA debt securities;

    .  secure the ACE INA debt securities;

    .  provide for conversion or exchange rights of the holders of any
       series of ACE INA debt securities; or

    .  make any other change that does not materially adversely affect the
       interests of the holders of any ACE INA debt securities then
       outstanding under the applicable ACE INA indenture. (Section 9.1)

      The holders of at least a majority in principal amount of the outstanding
ACE INA debt securities of any series may, on behalf of the holders of all ACE
INA debt securities of that series, waive compliance by ACE INA and ACE with
certain covenants of the applicable ACE INA indenture. (Section 10.8 of the ACE
INA senior indenture; Section 10.6 of the ACE INA subordinated indenture)  The
holders of not less than a majority in principal amount of the outstanding ACE
INA debt securities of any series on behalf of the holders of all ACE INA debt
securities of that series and, in the case of any ACE INA subordinated debt
securities issued to an ACE Trust, the holders of not less than a majority in
liquidation amount of the outstanding preferred securities of the ACE Trust,
may waive any past default and its consequences under the applicable ACE INA
indenture with respect to the ACE INA debt securities of that series, except a
default (1) in the

                                       51
<PAGE>

payment of principal, any premium or interest on or any additional amounts with
respect to ACE INA debt securities of such series or (2) in respect of a
covenant or provision of the applicable ACE INA indenture that cannot be
modified or amended without the consent of the holder of each outstanding ACE
INA debt security of any series affected. (Section 5.13)

      Under each ACE INA indenture, each of ACE INA and ACE is required to
furnish the trustee annually a statement as to its performance of certain of
its obligations under that ACE INA indenture and as to any default in such
performance. Each of ACE INA and ACE is also required to deliver to the
trustee, within five days after occurrence thereof, written notice of any Event
of Default, or any event which after notice or lapse of time or both would
constitute an Event of Default, resulting from the failure to perform or breach
of any covenant or warranty contained in the applicable ACE INA indenture or
the ACE INA debt securities of any series. (Sections 10.9 and 10.10 of the ACE
INA senior indenture; Sections 10.7 and 10.8 of the ACE INA subordinated
indenture)

Discharge, Defeasance and Covenant Defeasance

      ACE INA or ACE may discharge certain obligations to holders of any series
of ACE INA debt securities that have not already been delivered to the trustee
for cancellation and that either have become due and payable or will become due
and payable within one year (or scheduled for redemption within one year) by
depositing with the trustee, in trust, funds in U.S. dollars or in the Foreign
Currency in which such ACE INA debt securities are payable in an amount
sufficient to pay the entire indebtedness on such ACE INA debt securities with
respect to principal and any premium, interest and additional amounts to the
date of such deposit (if such ACE INA debt securities have become due and
payable) or to the maturity thereof, as the case may be. (Section 4.1)

      Each ACE INA indenture provides that, unless the provisions of Section
4.2 thereof are made inapplicable to the ACE INA debt securities of or within
any series pursuant to Section 3.1 thereof, ACE INA may elect either (1) to
defease and discharge itself and ACE from any and all obligations with respect
to such ACE INA debt securities (except for, among other things, the obligation
of ACE to pay additional amounts upon the occurrence of certain events of
taxation, assessment or governmental charge with respect to payments on such
ACE INA debt securities and other obligations to register the transfer or
exchange of such ACE INA debt securities, to replace temporary or mutilated,
destroyed, lost or stolen ACE INA debt securities, to maintain an office or
agency with respect to such ACE INA debt securities and to hold moneys for
payment in trust) ("defeasance") or (2) to release itself and ACE from their
respective obligations with respect to such ACE INA debt securities under
certain covenants as described in the related prospectus supplement, and any
omission to comply with such obligations shall not constitute a default or an
Event of Default with respect to such ACE INA debt securities ("covenant
defeasance"). Defeasance or covenant defeasance, as the case may be, shall be
conditioned upon the irrevocable deposit by ACE INA or ACE with the Trustee, in
trust, of an amount in U.S. dollars or in the Foreign Currency in which such
ACE INA debt securities are payable at stated maturity, or Government
Obligations (as defined below), or both, applicable to such ACE INA debt
securities which through the scheduled payment of principal and interest in
accordance with their terms will provide money in an amount sufficient to pay
the principal of, any premium and interest on, and any additional amounts with
respect to, such ACE INA debt securities on the scheduled due dates. (Section
4.2)

      Such a trust may only be established if, among other things, (1) the
applicable defeasance or covenant defeasance does not result in a breach or
violation of, or constitute a default under, the applicable ACE INA indenture
or any other material agreement or instrument to which ACE INA or ACE is a
party or by which either of them is bound, (2) no Event of Default or event
which with notice or lapse of time or both would become an Event of Default
with respect to the ACE INA debt securities to be defeased shall have occurred
and be continuing on the date of establishment of such a trust and, with
respect to defeasance only, at any time during the period ending on the 123rd
day after such date and (3) ACE INA or ACE has delivered to the trustee an
opinion of counsel (as specified in the ACE INA indenture) to the effect that
the holders of such

                                       52
<PAGE>

ACE INA debt securities will not recognize income, gain or loss for United
States Federal income tax purposes as a result of such defeasance or covenant
defeasance and will be subject to United States Federal income tax on the same
amounts, in the same manner and at the same times as would have been the case
if such defeasance or covenant defeasance had not occurred, and such opinion of
counsel, in the case of defeasance, must refer to and be based upon a letter
ruling of the Internal Revenue Service received by ACE INA or ACE, a Revenue
Ruling published by the Internal Revenue Service or a change in applicable
United States Federal income tax law occurring after the date of the applicable
ACE INA indenture. (Section 4.2)

      "Foreign Currency" means any currency, currency unit or composite
currency, including, without limitation, the euro, issued by the government of
one or more countries other than the United States of America or by any
recognized confederation or association of such governments. (Section 1.1)

      "Government Obligations" means debt securities which are (1) direct
obligations of the United States of America or the government or the
governments which issued the Foreign Currency in which the ACE INA debt
securities of a particular series are payable, for the payment of which its
full faith and credit is pledged or (2) obligations of a Person controlled or
supervised by and acting as an agency or instrumentality of the United States
of America or such government or governments which issued the Foreign Currency
in which the ACE INA debt securities of such series are payable, the timely
payment of which is unconditionally guaranteed as a full faith and credit
obligation by the United States of America or such other government or
governments, and which, in the case of clauses (1) and (2), are not callable or
redeemable at the option of the issuer or issuers thereof, and shall also
include a depository receipt issued by a bank or trust company as custodian
with respect to any such Government Obligation or a specific payment of
interest on or principal of or any other amount with respect to any such
Government Obligation held by such custodian for the account of the holder of
such depository receipt, provided that (except as required by law) such
custodian is not authorized to make any deduction from the amount payable to
the holder of such depository receipt from any amount received by the custodian
with respect to the Government Obligation or the specific payment of interest
on or principal of or any other amount with respect to the Government
Obligation evidenced by such depository receipt. (Section 1.1)

      If after ACE INA or ACE has deposited funds and/or Government Obligations
to effect defeasance or covenant defeasance with respect to ACE INA debt
securities of any series, (1) the holder of an ACE INA debt security of that
series is entitled to, and does, elect pursuant to Section 3.1 of the
applicable ACE INA indenture or the terms of such ACE INA debt security to
receive payment in a currency other than that in which such deposit has been
made in respect of such debt security, or (2) a Conversion Event occurs in
respect of the Foreign Currency in which such deposit has been made, the
indebtedness represented by such ACE INA debt security shall be deemed to have
been, and will be, fully discharged and satisfied through the payment of the
principal of, any premium and interest on, and any additional amounts with
respect to, such ACE INA debt security as such ACE INA debt security becomes
due out of the proceeds yielded by converting the amount or other properties so
deposited in respect of such ACE INA debt security into the currency in which
such ACE INA debt security becomes payable as a result of such election or such
Conversion Event based on (a) in the case of payments made pursuant to clause
(1) above, the applicable market exchange rate for such currency in effect on
the second business day prior to such payment date, or (b) with respect to a
Conversion Event, the applicable market exchange rate for such Foreign Currency
in effect (as nearly as feasible) at the time of the Conversion Event. (Section
4.2)

      "Conversion Event" means the cessation of use of (1) a Foreign Currency
both by the government of the country or countries which issued such Foreign
Currency and for the settlement of transactions by a central bank or other
public institutions of or within the international banking community or (2) any
currency unit or composite currency for the purposes for which it was
established. All payments of principal of, any premium and interest on, and any
additional amounts with respect to, any ACE INA debt security that are payable
in a Foreign Currency that ceases to be used by the government or governments
of issuance shall be made in U.S. dollars. (Section 1.1)

                                       53
<PAGE>

      In the event ACE INA effects covenant defeasance with respect to any ACE
INA debt securities and such ACE INA debt securities are declared due and
payable because of the occurrence of any Event of Default other than an Event
of Default with respect to any covenant as to which there has been covenant
defeasance, the amount in such Foreign Currency in which such ACE INA debt
securities are payable, and Government Obligations on deposit with the trustee,
will be sufficient to pay amounts due on such ACE INA debt securities at the
time of the stated maturity but may not be sufficient to pay amounts due on
such ACE INA debt securities at the time of the acceleration resulting from
such Event of Default. However, ACE INA and ACE would remain liable to make
payment of such amounts due at the time of acceleration.

Subordination of ACE INA Subordinated Debt Securities

      The ACE INA subordinated debt securities of each series will, to the
extent set forth in the ACE INA subordinated indenture, be subordinate in right
of payment to the prior payment in full of all Senior Indebtedness with respect
to such series. (Section 16.1 of the ACE INA subordinated indenture). Upon any
payment or distribution of assets of ACE INA of any kind or character, whether
in cash, property or securities, to creditors upon any dissolution, winding-up,
liquidation or reorganization of ACE INA, whether voluntary or involuntary, or
in bankruptcy, insolvency, receivership or other proceedings, all amounts due
upon all Senior Indebtedness with respect to the ACE INA subordinated debt
securities of any series will first be paid in full, or payment thereof
provided for in money in accordance with its terms, before the holders of ACE
INA subordinated debt securities of such series are entitled to receive or
retain any payment on account of principal of, or any premium or interest on,
or any additional amounts with respect to, the ACE INA subordinated debt
securities of such series, and to that end the holders of such Senior
Indebtedness shall be entitled to receive, for application to the payment
thereof, any payment or distribution of any kind or character, whether in cash,
property or securities, including any such payment or distribution which may be
payable or deliverable by reason of the payment of any other Indebtedness of
ACE INA being subordinated to the payment of ACE INA subordinated debt
securities of such series, which may be payable or deliverable in respect of
the ACE INA subordinated debt securities of such series upon any such
dissolution, winding-up, liquidation or reorganization or in any such
bankruptcy, insolvency, receivership or other proceeding. (Section 16.3 of the
ACE INA subordinated indenture)

      By reason of such subordination, in the event of liquidation or
insolvency of ACE INA, holders of Senior Indebtedness with respect to the ACE
INA subordinated debt securities of any series and holders of other obligations
of ACE INA that are not subordinated to such Senior Indebtedness may recover
more, ratably, than the holders of the ACE INA subordinated debt securities of
such series.

      Subject to the payment in full of all Senior Indebtedness with respect to
the ACE INA subordinated debt securities of any series, the rights of the
holders of the ACE INA subordinated debt securities of such series will be
subrogated to the rights of the holders of such Senior Indebtedness to receive
payments or distributions of cash, property or securities of ACE INA applicable
to such Senior Indebtedness until the principal of, any premium and interest
on, and any additional amounts with respect to, the ACE INA subordinated debt
securities of such series have been paid in full. (Section 16.4 of the ACE INA
subordinated indenture)

      No payment of principal (including redemption and sinking fund payments)
of or any premium or interest on or any additional amounts with respect to the
ACE INA subordinated debt securities of any series may be made by ACE INA (1)
if any Senior Indebtedness with respect to such series is not paid when due and
any applicable grace period with respect to such default has ended and such
default has not been cured or waived or ceased to exist, or (2) if the maturity
of any Senior Indebtedness with respect to such series has been accelerated
because of a default. (Section 16.2 of the ACE INA subordinated indenture)

      The ACE INA subordinated indenture does not limit or prohibit ACE INA
from incurring additional Senior Indebtedness, which may include Indebtedness
that is senior to the ACE INA subordinated debt securities of any series, but
subordinate to other obligations of ACE INA. The ACE INA senior debt securities
will constitute Senior Indebtedness with respect to the ACE INA subordinated
debt securities of each series under the ACE INA subordinated indenture.

                                       54
<PAGE>

      The term "Senior Indebtedness" means, with respect to the ACE INA
subordinated debt securities of any particular series, all Indebtedness of ACE
INA outstanding at any time, except (1) the ACE INA subordinated debt
securities of such series, (2) Indebtedness as to which, by the terms of the
instrument creating or evidencing the same, it is provided that such
Indebtedness is subordinated to or ranks equally with the ACE INA subordinated
debt securities of such series, (3) Indebtedness of ACE INA to an Affiliate of
ACE INA, (4) interest accruing after the filing of a petition initiating any
bankruptcy, insolvency or other similar proceeding unless such interest is an
allowed claim enforceable against ACE INA in a proceeding under federal or
state bankruptcy laws, (5) trade accounts payable and (6) any Indebtedness,
including all other debt securities and guarantees in respect of those debt
securities, initially issued to (x) any ACE Trust or (y) any trust, partnership
or other entity affiliated with ACE which is a financing vehicle of ACE or any
Affiliate of ACE in connection with an issuance by such entity of preferred
securities or other securities which are similar to the preferred securities
described under "Description of Preferred Securities" below that are guaranteed
by ACE pursuant to an instrument that ranks equally with or junior in right of
payment to the preferred securities guarantees described under "Description of
the Preferred Securities Guarantees" below. Senior Indebtedness with respect to
the ACE INA subordinated debt securities of any particular series shall
continue to be Senior Indebtedness with respect to the ACE INA subordinated
debt securities of such series and be entitled to the benefits of the
subordination provisions irrespective of any amendment, modification or waiver
of any term of such Senior Indebtedness. (Sections 1.1 and 16.8 of the ACE INA
subordinated indenture)

      The ACE INA subordinated indenture provides that the foregoing
subordination provisions, insofar as they relate to any particular series of
ACE INA subordinated debt securities, may be changed prior to such issuance.
Any such change would be described in the related prospectus supplement.

Subordination of ACE Guarantee of ACE INA Subordinated Debt Securities

      The ACE guarantee of ACE INA subordinated debt securities of each series
will, to the extent set forth in the ACE INA subordinated indenture, be
subordinate in right of payment to the prior payment in full of all ACE Senior
Indebtedness with respect to such series. (Section 18.1 of the ACE INA
subordinated indenture) Upon any payment or distribution of assets of ACE of
any kind or character, whether in cash, property or securities, to creditors
upon any dissolution, winding-up, liquidation or reorganization of ACE, whether
voluntary or involuntary, or in bankruptcy, insolvency, receivership or other
proceedings, all amounts due upon all ACE Senior Indebtedness with respect to
the ACE INA subordinated debt securities of any series will first be paid in
full, or payment thereof provided for in money in accordance with its terms,
before the holders of ACE INA subordinated debt securities of such series are
entitled to receive or retain any payment from ACE on account of principal of,
or any premium or interest on, or any additional amounts with respect to, the
ACE INA subordinated debt securities of such series, and to that end the
holders of such ACE Senior Indebtedness shall be entitled to receive, for
application to the payment thereof, any payment or distribution by ACE of any
kind or character, whether in cash, property or securities, including any such
payment or distribution which may be payable or deliverable by ACE by reason of
the payment of any other Indebtedness of ACE being subordinated to the payment
of ACE INA subordinated debt securities of such series, which may be payable or
deliverable by ACE in respect of the ACE INA subordinated debt securities of
such series upon any such dissolution, winding-up, liquidation or
reorganization or in any such bankruptcy, insolvency, receivership or other
proceeding. (Section 18.3 of the ACE INA subordinated indenture)

      By reason of such subordination, in the event of liquidation or
insolvency of ACE, holders of ACE Senior Indebtedness with respect to the ACE
INA subordinated debt securities of any series and holders of other obligations
of ACE that are not subordinated to such ACE Senior Indebtedness may recover
more, ratably, than the holders of the ACE INA subordinated debt securities of
such series.

      Subject to the payment in full of all ACE Senior Indebtedness with
respect to the ACE INA subordinated debt securities of any series, the rights
of the holders of the ACE INA subordinated debt securities of such series under
the ACE guarantee will be subrogated to the rights of the holders of such ACE
Senior Indebtedness to receive payments or distributions of cash, property or
securities of ACE applicable to such

                                       55
<PAGE>

ACE Senior Indebtedness until the principal of, any premium and interest on,
and any additional amounts with respect to, the ACE INA subordinated debt
securities of such series have been paid in full. (Section 18.4 of the ACE INA
subordinated indenture)

      No payment of principal (including redemption and sinking fund payments)
of or any premium or interest on or any additional amounts with respect to the
ACE INA subordinated debt securities of any series may be made by ACE (i) if
any ACE Senior Indebtedness with respect to such series is not paid when due
and any applicable grace period with respect to such default has ended and such
default has not been cured or waived or ceased to exist, or (ii) if the
maturity of any ACE Senior Indebtedness with respect to such series has been
accelerated because of a default. (Section 18.2 of the ACE INA subordinated
indenture)

      The ACE INA subordinated indenture does not limit or prohibit ACE from
incurring additional ACE Senior Indebtedness, which may include Indebtedness
that is senior to the ACE guarantee of the ACE INA subordinated debt securities
of any series, but subordinate to other obligations of ACE. The ACE senior debt
securities will constitute ACE Senior Indebtedness with respect to the ACE INA
subordinated debt securities of each series under the ACE INA subordinated
indenture.

      The term "ACE Senior Indebtedness" means, with respect to the ACE INA
subordinated debt securities of any particular series, all Indebtedness of ACE
outstanding at any time, except (1) ACE's obligations under the ACE guarantee
in respect of the ACE INA subordinated debt securities of such series, (2)
Indebtedness as to which, by the terms of the instrument creating or evidencing
the same, it is provided that such Indebtedness is subordinated to or ranks
equally with ACE's obligations under the ACE guarantee in respect of the ACE
subordinated debt securities of such series, (3) Indebtedness of ACE to an
Affiliate of ACE, (4) interest accruing after the filing of a petition
initiating any bankruptcy, insolvency or other similar proceeding unless such
interest is an allowed claim enforceable against ACE in a proceeding under
federal or state bankruptcy laws, (5) trade accounts payable, (6) ACE's
obligations under the ACE guarantee in respect of the ACE INA subordinated debt
securities of any series initially issued to (x) any ACE Trust or (y) any
trust, partnership or other entity affiliated with ACE which is a financing
vehicle of ACE or any Affiliate of ACE in connection with an issuance by such
entity of preferred securities or other securities which are similar to the
preferred securities described under "Description of Preferred Securities"
below that are guaranteed by ACE pursuant to an instrument that ranks equally
with a junior in right of payment to the preferred securities guarantees
described under "Description of Preferred Securities Guarantees" below and (7)
all preferred securities guarantees and all similar guarantees issued by ACE on
behalf of holders of preferred securities of an ACE Trust or other similar
preferred securities issued by any trust, partnership or other entity
affiliated with ACE which is a financing vehicle for ACE or any affiliate of
ACE.

      The ACE INA subordinated indenture provides that the foregoing
subordination provisions, insofar as they relate to any particular series of
ACE INA subordinated debt securities, may be changed prior to such issuance.
Any such change would be described in the applicable prospectus supplement.

New York Law to Govern

      The ACE INA indentures, the ACE INA debt securities and the ACE guarantee
will be governed by, and construed in accordance with, the laws of the State of
New York applicable to agreements made or instruments entered into and, in each
case, performed in that state. (Section 1.13)

                    DESCRIPTION OF THE WARRANTS TO PURCHASE
                      ORDINARY SHARES OR PREFERRED SHARES

      The following statements with respect to the ordinary share warrants and
preferred share warrants are summaries of, and subject to, the detailed
provisions of a stock warrant agreement to be entered into by ACE and a stock
warrant agent to be selected at the time of issue. The stock warrant agreement
may include or incorporate by reference standard warrant provisions
substantially in the form of the Standard Stock Warrant Provisions filed as an
exhibit to the registration statement of which this prospectus forms a part.

                                       56
<PAGE>

General

      The stock warrants, evidenced by stock warrant certificates, may be
issued under the stock warrant agreement independently or together with any
other securities offered by any prospectus supplement and may be attached to or
separate from such other offered securities. If stock warrants are offered, the
related prospectus supplement will describe the designation and terms of the
stock warrants, including without limitation the following:

    .  the offering price, if any;

    .  the designation and terms of the ordinary shares or preferred shares
       purchasable upon exercise of the stock warrants;

    .  if applicable, the date on and after which the stock warrants and the
       related offered securities will be separately transferable;

    .  the number of ordinary shares or preferred shares purchasable upon
       exercise of one stock warrant and the initial price at which such
       shares may be purchased upon exercise;

    .  the date on which the right to exercise the stock warrants shall
       commence and the date on which such right shall expire;

    .  a discussion of certain United States Federal income tax
       considerations;

    .  the call provisions, if any;

    .  the currency, currencies or currency units in which the offering
       price, if any, and exercise price are payable;

    .  the antidilution provisions of the stock warrants; and

    .  any other terms of the stock warrants.

      The ordinary shares or preferred shares issuable upon exercise of the
stock warrants will, when issued in accordance with the stock warrant
agreement, be fully paid and nonassessable.

Exercise of Stock Warrants

      Stock warrants may be exercised by surrendering to the stock warrant
agent the stock warrant certificate with the form of election to purchase on
the reverse thereof duly completed and signed by the warrantholder, or its duly
authorized agent (such signature to be guaranteed by a bank or trust company,
by a broker or dealer which is a member of the National Association of
Securities Dealers, Inc. or by a member of a national securities exchange),
indicating the warrantholder's election to exercise all or a portion of the
stock warrants evidenced by the certificate. Surrendered stock warrant
certificates shall be accompanied by payment of the aggregate exercise price of
the stock warrants to be exercised, as set forth in the related prospectus
supplement, in lawful money of the United States, unless otherwise provided in
the related prospectus supplement. Upon receipt thereof by the stock warrant
agent, the stock warrant agent will requisition from the transfer agent for the
ordinary shares or the preferred shares, as the case may be, for issuance and
delivery to or upon the written order of the exercising warrantholder, a
certificate representing the number of ordinary shares or preferred shares
purchased. If less than all of the stock warrants evidenced by any stock
warrant certificate are exercised, the stock warrant agent shall deliver to the
exercising warrantholder a new stock warrant certificate representing the
unexercised stock warrants.

Antidilution and Other Provisions

      The exercise price payable and the number of ordinary shares or preferred
shares purchasable upon the exercise of each stock warrant and the number of
stock warrants outstanding will be subject to adjustment in certain events,
including the issuance of a stock dividend to holders of ordinary shares or
preferred shares, respectively, or a combination, subdivision or
reclassification of ordinary shares or preferred shares, respectively. In lieu
of adjusting the number of ordinary shares or preferred shares purchasable upon
exercise of

                                       57
<PAGE>

each stock warrant, ACE may elect to adjust the number of stock warrants. No
adjustment in the number of shares purchasable upon exercise of the stock
warrants will be required until cumulative adjustments require an adjustment of
at least 1% thereof. ACE may, at its option, reduce the exercise price at any
time. No fractional shares will be issued upon exercise of stock warrants, but
ACE will pay the cash value of any fractional shares otherwise issuable.
Notwithstanding the foregoing, in case of any consolidation, merger, or sale or
conveyance of the property of ACE as an entirety or substantially as an
entirety, the holder of each outstanding stock warrant shall have the right to
the kind and amount of shares of stock and other securities and property
(including cash) receivable by a holder of the number of ordinary shares or
preferred shares into which such stock warrants were exercisable immediately
prior thereto.

No Rights as Shareholders

      Holders of stock warrants will not be entitled, by virtue of being such
holders, to vote, to consent, to receive dividends, to receive notice as
shareholders with respect to any meeting of shareholders for the election of
directors of ACE or any other matter, or to exercise any rights whatsoever as
shareholders of ACE.

            DESCRIPTION OF THE WARRANTS TO PURCHASE DEBT SECURITIES

      The following statements with respect to the debt warrants are summaries
of, and subject to, the detailed provisions of a debt warrant agreement to be
entered into by ACE and a debt warrant agent to be selected at the time of
issue. The debt warrant agreement may include or incorporate by reference
standard warrant provisions substantially in the form of the Standard Debt
Securities Warrant Provisions filed as an exhibit to the registration statement
of which this prospectus forms a part.

General

      The debt warrants, evidenced by debt warrant certificates, may be issued
under the debt warrant agreement independently or together with any other
securities offered by any prospectus supplement and may be attached to or
separate from such other offered securities. If debt warrants are offered, the
related prospectus supplement will describe the designation and terms of the
debt warrants, including without limitation the following:

    .  the offering price, if any;

    .  the designation, aggregate principal amount and terms of the ACE debt
       securities purchasable upon exercise of the debt warrants;

    .  if applicable, the date on and after which the debt warrants and the
       related offered securities will be separately transferable;

    .  the principal amount of ACE debt securities purchasable upon exercise
       of one debt warrant and the price at which such principal amount of
       ACE debt securities may be purchased upon exercise;

    .  the date on which the right to exercise the debt warrants shall
       commence and the date on which such right shall expire;

    .  a discussion of certain United States Federal income tax
       considerations;

    .  whether the warrants represented by the debt warrant certificates
       will be issued in registered or bearer form;

    .  the currency, currencies or currency units in which the offering
       price, if any, and exercise price are payable;

    .  the antidilution provisions of the debt warrants; and

    .  any other terms of the debt warrants.

                                       58
<PAGE>

      Warrantholders will not have any of the rights of holders of ACE debt
securities, including the right to receive the payment of principal of, any
premium or interest on, or any additional amounts with respect to, the ACE debt
securities or to enforce any of the covenants of the ACE debt securities or the
applicable ACE indenture except as otherwise provided in the applicable ACE
indenture.

Exercise of Debt Warrants

      Debt warrants may be exercised by surrendering the debt warrant
certificate at the office of the debt warrant agent, with the form of election
to purchase on the reverse side of the debt warrant certificate properly
completed and executed (with signature(s) guaranteed by a bank or trust
company, by a broker or dealer which is a member of the National Association of
Securities Dealers, Inc. or by a member of a national securities exchange), and
by payment in full of the exercise price, as set forth in the related
prospectus supplement. Upon the exercise of debt warrants, ACE will issue the
ACE debt securities in authorized denominations in accordance with the
instructions of the exercising warrantholder. If less than all of the debt
warrants evidenced by the debt warrant certificate are exercised, a new debt
warrant certificate will be issued for the remaining number of debt warrants.

                      DESCRIPTION OF PREFERRED SECURITIES

      Each ACE Trust will be governed by the terms of the applicable restated
trust agreement. Under the restated trust agreement of an ACE Trust, the ACE
Trust may issue, from time to time, only one series of preferred securities.
The preferred securities will have the terms set forth in the restated trust
agreement or made a part of the restated trust agreement by the Trust Indenture
Act, and described in the related prospectus supplement. These terms will
mirror the terms of the ACE INA subordinated debt securities purchased by the
ACE Trust using the proceeds from the sale of its preferred securities and its
common securities. The ACE INA subordinated debt securities issued to an ACE
Trust will be guaranteed by ACE on a subordinated basis and are referred to as
the "corresponding ACE INA subordinated debt securities" relating to that ACE
Trust. See "Use of Proceeds."

      The following summary sets forth the material terms and provisions of
each restated trust agreement and the preferred securities to which any
prospectus supplement relates. Because this summary is not complete, you should
refer to the form of restated trust agreement and to the Trust Indenture Act
for complete information regarding the terms and provisions of that agreement
and of the preferred securities, including the definitions of some of the terms
used below. The form of restated trust agreement filed as an exhibit to the
registration statement of which this prospectus forms a part is incorporated by
reference in this summary. Whenever particular sections or defined terms of a
restated trust agreement are referred to, such sections or defined terms are
incorporated herein by reference, and the statements in connection with which
such reference is made is qualified in its entirety by such reference.

Issuance, Status and Guarantee of Preferred Securities

      Under the terms of the restated trust agreement for each ACE Trust, the
Administrative Trustees will issue the preferred securities on behalf of that
ACE Trust. The preferred securities will represent preferred beneficial
interests in the ACE Trust and the holders of the preferred securities will be
entitled to a preference in certain circumstances as regards distributions and
amounts payable on redemption or liquidation over the common securities of such
ACE Trust, as well as other benefits under the corresponding restated trust
agreement. The preferred securities of an ACE Trust will rank equally, and
payments will be made on the preferred securities pro rata, with the common
securities of that ACE Trust except as described under "--Subordination of
Common Securities." The Property Trustee will hold legal title to the
corresponding ACE INA subordinated debt securities in trust for the benefit of
the holders of the related preferred securities and common securities. The
common securities and the preferred securities of an ACE Trust are collectively
referred to as the "trust securities" of that ACE Trust.

                                       59
<PAGE>

      ACE will issue a guarantee agreement for the benefit of the holders of
each ACE Trust's preferred securities (the "preferred securities guarantee" for
those preferred securities). Under each preferred securities guarantee, ACE
will guarantee on a subordinated basis payment of distributions on the related
preferred securities and amounts payable on redemption or liquidation of such
preferred securities, but only to the extent that the related ACE Trust has
funds on hand to make such payments. See "Description of Preferred Securities
Guarantees."

Distributions

      Distributions on the preferred securities will be cumulative, will
accumulate from the original issue date and will be payable on the dates as
specified in the related prospectus supplement. In the event that any date on
which distributions are payable on the preferred securities is not a Business
Day, payment of the distribution payable on such date will be made on the next
succeeding day that is a Business Day (and without any additional distributions
or other payment in respect of any such delay), except that, if such Business
Day is in the next succeeding calendar year, payment of such distribution shall
be made on the immediately preceding Business Day, in each case with the same
force and effect as if made on the date such payment was originally payable
(each date on which distributions are payable in accordance with the foregoing,
a "distribution date"). (Section 4.1). A "Business Day" is any day other than a
Saturday or a Sunday, or a day on which banking institutions in The City of New
York are authorized or required by law or executive order to remain closed or a
day on which the corporate trust office of the Property Trustee or the trustee
for the corresponding ACE INA subordinated debt securities is closed for
business. (Section 1.1).

      Distributions on each preferred security will be payable at a rate
specified in the related prospectus supplement. The amount of distributions
payable for any period will be computed on the basis of a 360-day year of
twelve 30-day months unless otherwise specified in the related prospectus
supplement. Distributions to which holders of preferred securities are entitled
will accumulate additional distributions at the rate per annum if and as
specified in the related prospectus supplement. References to "distributions"
include any accumulated or additional distributions unless otherwise stated.
(Section 4.1).

      If provided in the applicable prospectus supplement, ACE INA has the
right under the ACE INA subordinated indenture to defer the payment of interest
at any time or from time to time on any series of corresponding ACE INA
subordinated debt securities for an Extension Period which will be specified in
the related prospectus supplement. No Extension Period may extend beyond the
stated maturity of the corresponding ACE INA subordinated debt securities. See
"Description of ACE INA Debt Securities and ACE Guarantee--Option to Extend
Interest Payment Date." As a consequence of any such extension, distributions
on the corresponding preferred securities would be deferred (but would continue
to accumulate additional distributions at the rate per annum set forth in the
prospectus supplement for such preferred securities, which will match the
interest rate payable on the corresponding ACE INA subordinated debt securities
during the Extension Period) by the ACE Trust which issued such preferred
securities during any such Extension Period. (Section 4.1)

      The funds of each ACE Trust available for distribution to holders of its
preferred securities will be limited to payments under the corresponding ACE
INA subordinated debt securities in which the ACE Trust will invest the
proceeds from the issuance and sale of its trust securities. If ACE INA or ACE
does not make interest payments on those corresponding ACE INA subordinated
debt securities, the Property Trustee will not have funds available to pay
distributions on the related preferred securities. The payment of distributions
(if and to the extent the ACE Trust has funds legally available for the payment
of such distributions and cash sufficient to make such payments) is guaranteed
by ACE on a limited basis as set forth herein under "Description of Preferred
Securities Guarantees."

      Distributions on the preferred securities will be payable to the holders
thereof as they appear on the register of such ACE Trust on the relevant record
dates. As long as the preferred securities remain in book- entry form, the
record dates will be one Business Day prior to the relevant distribution dates.
Subject to any

                                       60
<PAGE>

applicable laws and regulations and the provisions of the applicable restated
trust agreement, each distribution payment will be made as described under
"Global Preferred Securities." In the event any preferred securities are not in
book-entry form, the relevant record date for such preferred securities will be
the date at least 15 days prior to the relevant distribution date, as specified
in the related prospectus supplement. (Section 4.1)

Redemption or Exchange

      Mandatory Redemption. Upon any repayment or redemption, in whole or in
part, of any corresponding ACE INA subordinated debt securities held by an ACE
Trust, whether at stated maturity, upon earlier redemption or otherwise, the
proceeds from such repayment or redemption shall simultaneously be applied by
the Property Trustee, upon not less than 30 nor more than 60 days notice to
holders of trust securities, to redeem, on a pro rata basis, preferred
securities and common securities having an aggregate stated liquidation amount
equal to the aggregate principal amount of the corresponding ACE INA
subordinated debt securities so repaid or redeemed. The redemption price per
trust security will be equal to the stated liquidation amount thereof plus
accumulated and unpaid distributions thereon to the date of redemption, plus
the related amount of premium, if any, and any additional amounts paid by ACE
INA or ACE upon the concurrent repayment or redemption of the corresponding ACE
INA subordinated debt securities (the "redemption price"). (Section 4.2) If
less than all of any series of corresponding ACE INA subordinated debt
securities are to be repaid or redeemed on a redemption date, then the proceeds
from such repayment or redemption shall be allocated to the redemption pro rata
of the related preferred securities and the common securities. (Section 4.2)

      ACE INA will have the right to redeem any series of corresponding ACE INA
subordinated debt securities (1) at any time, in whole but not in part, upon
the occurrence of a Special Event and subject to the further conditions
described under "Description of ACE INA Debt Securities and ACE Guarantee--
Redemption," or (2) as may be otherwise specified in the applicable prospectus
supplement.

      Special Event Redemption or Distribution of Corresponding ACE INA
Subordinated Debt Securities. If a Special Event relating to the preferred
securities and common securities of an ACE Trust shall occur and be continuing,
ACE INA has the right to redeem the corresponding ACE INA subordinated debt
securities, in whole but not in part, and thereby cause a mandatory redemption
of such preferred securities and common securities, in whole but not in part,
at the redemption price within 90 days following the occurrence of the Special
Event. At any time, ACE INA has the right to dissolve the related ACE Trust and
after satisfaction of the liabilities of creditors of such ACE Trust as
provided by applicable law, cause such corresponding ACE INA subordinated debt
securities to be distributed to the holders of such preferred securities and
common securities in liquidation of the ACE Trust. If ACE INA does not elect to
redeem the corresponding ACE INA subordinated debt securities upon the
occurrence of a Special Event, the applicable preferred securities will remain
outstanding, and in the event a Tax Event has occurred and is continuing,
Additional Sums may be payable on the corresponding ACE INA subordinated debt
securities. "Additional Sums" means the additional amounts as may be necessary
in order that the amount of distributions then due and payable by an ACE Trust
on the outstanding preferred securities and common securities of the ACE Trust
shall not be reduced as a result of any additional taxes, duties and other
governmental charges to which such ACE Trust has become subject as a result of
a Tax Event. (Section 1.1)

      On and from the date fixed for any distribution of corresponding ACE INA
subordinated debt securities upon dissolution of an ACE Trust (1) the trust
securities will no longer be deemed to be outstanding, (2) the depositary or
its nominee, as the record holder of the applicable preferred securities, will
receive a registered global certificate or certificates representing the
corresponding ACE INA subordinated debt securities to be delivered upon such
distribution, upon surrender of the related preferred securities certificates
for exchange and (3) any certificates representing such preferred securities
not so surrendered for exchange will be deemed to represent beneficial
interests in the corresponding ACE INA subordinated debt securities having an
aggregate principal amount equal to the aggregate stated liquidation amount of
such preferred securities, and accruing interest at the rate provided for in
such debt securities (which will equal the distribution rate on the

                                       61
<PAGE>

preferred securities) until such certificates are presented to the
Administrative Trustees or their agent for exchange. (Section 9.4)

      There can be no assurance as to the market prices for the preferred
securities or the corresponding ACE INA subordinated debt securities that may
be distributed in exchange for preferred securities if a dissolution and
liquidation of an ACE Trust were to occur. Accordingly, the preferred
securities that you may purchase, or the corresponding ACE INA subordinated
debt securities that you may receive on dissolution and liquidation of an ACE
Trust, may trade at a discount to the price that you paid to purchase the
preferred securities.

Redemption Procedures

      Preferred securities redeemed on each redemption date shall be redeemed
at the redemption price with the applicable proceeds from the contemporaneous
redemption of the corresponding ACE INA subordinated debt securities.
Redemptions of the preferred securities shall be made and the redemption price
shall be payable on each redemption date only to the extent that the related
ACE Trust has funds on hand available for the payment of such redemption price.
See also "--Subordination of Common Securities."

      If an ACE Trust gives a notice of redemption (which notice will be
irrevocable) in respect of its preferred securities, then, by 12:00 noon, New
York City time, on the redemption date, to the extent funds are available, the
Property Trustee will deposit irrevocably with the depositary for the preferred
securities funds sufficient to pay the applicable redemption price and will
give the depositary irrevocable instructions and authority to pay the
redemption price to the holders of such preferred securities. If such preferred
securities are no longer in book-entry form, the Property Trustee, to the
extent funds are available, will irrevocably deposit with the paying agent for
such preferred securities funds sufficient to pay the applicable redemption
price and will give such paying agent irrevocable instructions and authority to
pay the redemption price to the holders thereof upon surrender of their
certificates evidencing such preferred securities. Notwithstanding the
foregoing, distributions payable on or prior to the redemption date for any
preferred securities called for redemption shall be payable to the holders of
such preferred securities on the relevant record dates for the related
distribution dates. If notice of redemption shall have been given and funds
deposited as required, then immediately prior to the close of business on the
date of such deposit, all rights of the holders of such preferred securities so
called for redemption will cease, except the right of the holders of such
preferred securities to receive the redemption price, but without interest, and
such preferred securities will cease to be outstanding. In the event that any
date on which any redemption price is payable is not a Business Day, then
payment of the redemption price payable on such date will be made on the next
succeeding day which is a Business Day (and without any interest or other
payment in respect of any such delay), except that, if such Business Day falls
in the next calendar year, such payment will be made on the immediately
preceding Business Day, in each case with the same force and effect as if made
on such date. In the event that payment of the redemption price in respect of
preferred securities called for redemption is improperly withheld or refused
and not paid either by the ACE Trust or by ACE pursuant to the preferred
securities guarantee as described under "Description of Preferred Securities
Guarantees", distributions on such preferred securities will continue to
accumulate at the then applicable rate, from the redemption date originally
established by the ACE Trust for such preferred securities to the date such
redemption price is actually paid, in which case the actual payment date will
be the date fixed for redemption for purposes of calculating the redemption
price.

      Subject to applicable law (including, without limitation, United States
Federal securities law), ACE or its subsidiaries, including ACE INA, may at any
time and from time to time purchase outstanding preferred securities by tender,
in the open market or by private agreement.

      Payment of the redemption price on the preferred securities shall be made
to the applicable recordholders as they appear on the register for such
preferred securities on the relevant record date, which shall be one Business
Day prior to the relevant redemption date; provided, however, that in the event
that any preferred securities are not in book-entry form, the relevant record
date for such preferred securities shall be a date at least 15 days prior to
the redemption date, as specified in the applicable prospectus supplement.

                                       62
<PAGE>

      If less than all of the preferred securities and common securities issued
by an ACE Trust are to be redeemed on a redemption date, then the aggregate
liquidation amount of such preferred securities and common securities to be
redeemed shall be allocated pro rata to the preferred securities and the common
securities based upon the relative liquidation amounts of such classes. The
particular preferred securities to be redeemed shall be selected on a pro rata
basis not more than 60 days prior to the redemption date by the Property
Trustee from the outstanding preferred securities not previously called for
redemption, by such method (including without limitation by lot) as the
Property Trustee shall deem fair and appropriate. The Property Trustee shall
promptly notify the trust registrar in writing of the preferred securities
selected for redemption and, in the case of any preferred securities selected
for partial redemption, the liquidation amount thereof to be redeemed. For all
purposes of each restated trust agreement, unless the context otherwise
requires, all provisions relating to the redemption of preferred securities
shall relate, in the case of any preferred securities redeemed or to be
redeemed only in part, to the portion of the liquidation amount of preferred
securities which has been or is to be redeemed.

      Notice of any redemption will be mailed at least 30 days but not more
than 60 days before the redemption date to each holder of trust securities to
be redeemed at its registered address. Unless each of ACE INA and ACE defaults
in payment of the redemption price on the corresponding ACE INA subordinated
debt securities, on and after the redemption date interest will cease to accrue
on such ACE INA subordinated debt securities or portions thereof (and
distributions will cease to accrue on the related preferred securities or
portions thereof) called for redemption. (Section 4.2)

Subordination of Common Securities

      Payment of distributions on, and the redemption price of, each ACE
Trust's preferred securities and common securities, as applicable, shall be
made pro rata based on the liquidation amount of such preferred securities and
common securities; provided, however, that if on any distribution date or
redemption date an event of default under the corresponding ACE INA
subordinated debt securities shall have occurred and be continuing, no payment
of any distribution on, or redemption price of, any of the ACE Trust's common
securities, and no other payment on account of the redemption, liquidation or
other acquisition of such common securities, shall be made unless payment in
full in cash of all accumulated and unpaid distributions on all of the ACE
Trust's outstanding preferred securities for all distribution periods
terminating on or prior thereto, or in the case of payment of the redemption
price the full amount of such redemption price on all of the ACE Trust's
outstanding preferred securities then called for redemption, shall have been
made or provided for, and all funds available to the Property Trustee shall
first be applied to the payment in full in cash of all distributions on, or
redemption price of, the ACE Trust's preferred securities then due and payable.

      In the case of any Event of Default under the restated trust agreement
resulting from a event of default under the corresponding ACE INA subordinated
debt securities, the holder of such ACE Trust's common securities will be
deemed to have waived any right to act with respect to any such Event of
Default under the applicable restated trust agreement until the effect of all
such Events of Default with respect to such preferred securities have been
cured, waived or otherwise eliminated. Until any such Events of Default under
the applicable restated trust agreement with respect to the preferred
securities have been so cured, waived or otherwise eliminated, the Property
Trustee shall act solely on behalf of the holders of such preferred securities
and not on behalf of the holder of the ACE Trust's common securities, and only
the holders of such preferred securities will have the right to direct the
Property Trustee to act on their behalf. (Section 4.3)

Liquidation Distribution Upon Dissolution of ACE Trust

      Pursuant to each restated trust agreement, each ACE Trust shall
automatically dissolve upon expiration of its term and shall dissolve on the
first to occur of:

      1. certain events of bankruptcy, dissolution or liquidation of ACE INA
    or ACE;

                                       63
<PAGE>

      2. the written direction to the Property Trustee from ACE INA, as
    Depositor, at any time (which direction is optional and wholly within
    the discretion of ACE INA, as Depositor) to dissolve the ACE Trust and
    distribute corresponding ACE INA subordinated debt securities having an
    aggregate principal amount equal to the aggregate stated liquidation
    amount of the trust securities to the holders of the trust securities in
    exchange for the trust securities;

      3. the redemption of all of the ACE Trust's trust securities following
    a Special Event;

      4. the redemption of all of the ACE Trust's preferred securities as
    described under "Description of Preferred Securities--Redemption or
    Exchange--Mandatory Redemption"; and

      5. the entry of an order for the dissolution of the ACE Trust by a
    court of competent jurisdiction. (Section 9.2)

      If an early dissolution occurs as described in clause (1), (2) or (5)
above or upon the date designated for automatic dissolution of the ACE Trust,
the ACE Trust shall be liquidated by the ACE Trustees as expeditiously as the
ACE Trustees determine to be possible by distributing, after satisfaction of
liabilities to creditors of such ACE Trust as provided by applicable law, to
the holders of such trust securities corresponding ACE INA subordinated debt
securities having an aggregate principal amount equal to the aggregate stated
liquidation amount of the trust securities. However, if such distribution is
determined by the Property Trustee not to be practical, such holders will be
entitled to receive out of the assets of the ACE Trust available for
distribution to holders, after satisfaction of liabilities to creditors of such
ACE Trust as provided by applicable law, an amount equal to, in the case of
holders of preferred securities, the aggregate of the liquidation amount plus
accumulated and unpaid distributions thereon to the date of payment (such
amount being the "Liquidation Distribution"). If such Liquidation Distribution
can be paid only in part because such ACE Trust has insufficient assets
available to pay in full the aggregate Liquidation Distribution, then the
amounts payable directly by such ACE Trust on its preferred securities shall be
paid on a pro rata basis. The Holder of such ACE Trust's common securities will
be entitled to receive distributions upon any such liquidation pro rata with
the holders of its preferred securities, except that if an event of default
under the corresponding ACE INA subordinated debt securities has occurred and
is continuing, the preferred securities shall have a priority over the common
securities. (Section 9.4)

Events of Default; Notice

      Any one of the following events constitutes an "Event of Default" under
each restated trust agreement with respect to the applicable preferred
securities (whatever the reason for such Event of Default and whether it shall
be voluntary or involuntary or be effected by operation of law or pursuant to
any judgment, decree or order of any court or any order, rule or regulation of
any administrative or governmental body):

    (1) the occurrence of an event of default in respect of the
        corresponding ACE INA subordinated debt securities (see "Description
        of ACE INA Debt Securities and ACE Guarantee--Events of Default");
        or

    (2) default by the Property Trustee in the payment of any distribution
        when it becomes due and payable, and continuation of such default
        for a period of 30 days; or

    (3) default by the Property Trustee in the payment of any redemption
        price of any trust security when it becomes due and payable; or

    (4) default in the performance, or breach, in any material respect, of
        any covenant or warranty of the ACE Trustees in such restated trust
        agreement (other than a covenant or warranty a default in the
        performance of which or the breach of which is dealt with in clause
        (2) or (3) above), and continuation of such default or breach for a
        period of 60 days after there has been given, by registered or
        certified mail, to the defaulting ACE Trustee or Trustees by the
        holders of at least 25% in aggregate liquidation preference of the
        outstanding preferred securities of the applicable ACE Trust, a
        written notice specifying such default or breach and requiring it to
        be remedied and stating that such notice is a "Notice of Default"
        under such restated trust agreement; or

                                       64
<PAGE>

    (5) the occurrence of certain events of bankruptcy or insolvency with
        respect to the Property Trustee and the failure by ACE INA, as
        Depositor, to appoint a successor Property Trustee within 60 days
        thereof. (Section 1.1)

      Within five Business Days after the occurrence of any Event of Default
actually known to the Property Trustee, the Property Trustee shall transmit
notice of such Event of Default to the holders of such ACE Trust's preferred
securities, the Administrative Trustees and ACE INA, as Depositor, unless such
Event of Default shall have been cured or waived. (Section 8.2) ACE INA, as
Depositor, and the Administrative Trustees are required to file annually with
the Property Trustee a certificate as to whether or not they are in compliance
with all the conditions and covenants applicable to them under each restated
trust agreement. (Sections 8.15 and 8.16)

      If an event of default under the corresponding ACE INA subordinated debt
securities has occurred and is continuing, the preferred securities shall have
a preference over the common securities upon dissolution of each ACE Trust as
described above. See "--Liquidation Distribution Upon Dissolution of ACE
Trust." The existence of an Event of Default under the restated trust agreement
does not entitle the holders of preferred securities to accelerate the maturity
thereof.

Removal of ACE Trustees

      Unless a event of default under the corresponding ACE INA subordinated
debt securities shall have occurred and be continuing, any ACE Trustee may be
removed at any time by the holder of the common securities. If an event of
default under the corresponding ACE INA subordinated debt securities has
occurred and is continuing, the Property Trustee and the Delaware Trustee may
be removed at such time by the holders of a majority in liquidation amount of
the outstanding preferred securities. In no event will the holders of the
preferred securities have the right to vote to appoint, remove or replace the
Administrative Trustees, which voting rights are vested exclusively in the
holder of the common securities. No resignation or removal of an ACE Trustee
and no appointment of a successor trustee shall be effective until the
acceptance of appointment by the successor trustee in accordance with the
provisions of the applicable restated trust agreement.
(Section 8.10)

Co-Trustees and Separate Property Trustee

      Unless an Event of Default shall have occurred and be continuing, at any
time or times, for the purpose of meeting the legal requirements of the Trust
Indenture Act or of any jurisdiction in which any part of the property of any
ACE Trust may at the time be located, ACE INA, as Depositor, and the
Administrative Trustees shall have power to appoint one or more persons either
to act as a co-trustee, jointly with the Property Trustee, of all or any part
of the property of such ACE Trust, or to act as separate trustee of any such
property, in either case with such powers as may be provided in the instrument
of appointment, and to vest in such person or persons in such capacity any
property, title, right or power deemed necessary or desirable, subject to the
provisions of the applicable restated trust agreement. In case an event of
default under the corresponding ACE INA subordinated debt securities has
occurred and is continuing, the Property Trustee alone shall have power to make
such appointment. (Section 8.9)

Merger or Consolidation of ACE Trustees

      Any corporation into which the Property Trustee, the Delaware Trustee or
any Administrative Trustee that is not a natural person may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such ACE Trustee shall be
a party shall be the successor of such ACE Trustee under each restated trust
agreement, provided such corporation shall be otherwise qualified and eligible.
(Section 8.12)

                                       65
<PAGE>

Mergers, Consolidations, Amalgamations or Replacements of the ACE Trusts

      An ACE Trust may not merge with or into, convert into, consolidate,
amalgamate, or be replaced by, or convey, transfer or lease its properties and
assets substantially as an entirety to any corporation or other entity, except
as described below or as described in "Liquidation Distribution Upon
Dissolution of ACE Trust." An ACE Trust may, at the request of ACE INA, with
the consent of only the Administrative Trustees and without the consent of the
holders of the preferred securities, merge with or into, convert into,
consolidate, amalgamate, or be replaced by or convey, transfer or lease its
properties and assets substantially as an entirety to a trust organized as such
under the laws of any State, provided, that

      1. such successor entity either (a) expressly assumes all of the
    obligations of such ACE Trust with respect to the preferred securities
    or (b) substitutes for the preferred securities other securities having
    substantially the same terms as the preferred securities (the "Successor
    Securities") so long as the Successor Securities rank the same as the
    preferred securities rank in priority with respect to distributions and
    payments upon liquidation, redemption and otherwise,

      2. ACE expressly appoints a trustee of such successor entity
    possessing the same powers and duties as the Property Trustee as the
    holder of the corresponding ACE INA subordinated debt securities,

      3. the Successor Securities are listed or traded, or any Successor
    Securities will be listed upon notification of issuance, on any national
    securities exchange or other organization on which the preferred
    securities are then listed or traded, if any,

      4. such merger, conversion, consolidation, amalgamation, replacement,
    conveyance, transfer or lease does not cause the preferred securities
    (including any Successor Securities) to be downgraded by any nationally
    recognized statistical rating organization,

      5. such merger, conversion, consolidation, amalgamation, replacement,
    conveyance, transfer or lease does not adversely affect the rights,
    preferences and privileges of the holders of the preferred securities
    (including any Successor Securities) in any material respect,

      6. such successor entity has a purpose substantially identical to that
    of the ACE Trust,

      7. prior to such merger, conversion, consolidation, amalgamation,
    replacement, conveyance, transfer or lease, ACE INA has received an
    opinion from independent counsel to the ACE Trust experienced in such
    matters to the effect that (a) such merger, conversion, consolidation,
    amalgamation, replacement, conveyance, transfer or lease does not
    adversely affect the rights, preferences and privileges of the holders
    of the preferred securities (including any Successor Securities) in any
    material respect, and (b) following such merger, conversion,
    consolidation, amalgamation, replacement, conveyance, transfer or lease,
    neither the ACE Trust nor any successor entity will be required to
    register as an "investment company" under the Investment Company Act,
    and

      8. ACE INA or any permitted successor or assignee owns all of the
    common securities of such successor entity and guarantees the
    obligations of such successor entity under the Successor Securities at
    least to the extent provided by the preferred securities guarantee.

      Notwithstanding the foregoing, an ACE Trust shall not, except with the
consent of holders of 100% in liquidation amount of the preferred securities,
consolidate, amalgamate, merge with or into, convert into, or be replaced by or
convey, transfer or lease its properties and assets substantially as an
entirety to any other entity or permit any other entity to consolidate,
amalgamate, merge with or into, convert into, or replace it if such
consolidation, amalgamation, merger, replacement, conveyance, transfer or lease
would cause the ACE Trust or the successor entity to be classified as other
than a grantor trust for United States Federal income tax purposes. (Section
9.5)

                                       66
<PAGE>

Voting and Preemptive Rights

      Except as provided below and under "--Removal of ACE Trustees,"
"Description of ACE INA Debt Securities and ACE Guarantee--Events of Default,"
"Description of Preferred Securities Guarantees--Amendments and Assignment" and
as otherwise required by law and the applicable restated trust agreement, the
holders of the preferred securities will have no voting rights. Holders of the
preferred securities have no preemptive or similar rights. (Sections 5.14 and
6.1)

Amendment of Restated Trust Agreements

      Each restated trust agreement may be amended from time to time by ACE INA
and the ACE Trustees, without the consent of the holders of the trust
securities:

      1. to cure any ambiguity, correct or supplement any provisions in such
    restated trust agreement that may be inconsistent with any other
    provision, or to make any other provisions with respect to matters or
    questions arising under such restated trust agreement, which shall not
    be inconsistent with the other provisions of such restated trust
    agreement, or

      2. to modify, eliminate or add to any provisions of such restated
    trust agreement to such extent as shall be necessary to ensure that the
    ACE Trust will be classified for United States Federal income tax
    purposes as a grantor trust at all times that any trust securities are
    outstanding or to ensure that the ACE Trust will not be required to
    register as an "investment company" under the Investment Company Act;

provided, however, that in the case of clause (1), such action shall not
adversely affect in any material respect the interests of any holder of trust
securities. Any such amendments of a restated trust agreement shall become
effective when notice thereof is given to the holders of trust securities of
the applicable ACE Trust.

      Each restated trust agreement may be amended by the ACE Trustees and ACE
INA with the consent of holders representing not less than a majority (based
upon liquidation amounts) of the outstanding trust securities, and receipt by
the ACE Trustees of an opinion of counsel to the effect that such amendment or
the exercise of any power granted to the ACE Trustees in accordance with such
amendment will not affect the ACE Trust's status as a grantor trust for United
States Federal income tax purposes or the ACE Trust's exemption from status as
an "investment company" under the Investment Company Act. However, without the
consent of each holder of trust securities, such restated trust agreement may
not be amended to:

      1. change the amount or timing of any distribution on the trust
    securities or otherwise adversely affect the amount of any distribution
    required to be made in respect of the trust securities as of a specified
    date, or

      2. restrict the right of a holder of trust securities to institute
    suit for the enforcement of any such payment on or after such date.
    (Section 10.2)

      So long as any corresponding ACE INA subordinated debt securities are
held by the Property Trustee, the ACE Trustees shall not:

      1. direct the time, method and place of conducting any proceeding for
    any remedy available to the trustee under the ACE INA subordinated
    indenture, or executing any trust or power conferred on that trustee
    with respect to such corresponding ACE INA subordinated debt securities,

      2. waive any past default that is waivable under Section 5.13 of the
    ACE INA subordinated indenture (as described in "Description of the ACE
    INA Debt Securities and ACE Guarantee-- Modification and Waiver"),

      3. exercise any right to rescind or annul a declaration that the
    principal of all the ACE INA subordinated debt securities shall be due
    and payable, or

                                       67
<PAGE>

      4. consent to any amendment, modification or termination of the ACE
    INA subordinated indenture or such corresponding ACE INA subordinated
    debt securities, where such consent shall be required,

without, in each case, obtaining the prior approval of the holders of a
majority in aggregate liquidation amount of all outstanding preferred
securities.

      However, where a consent under the ACE INA subordinated indenture would
require the consent of each holder of corresponding ACE INA subordinated debt
securities affected thereby, no such consent shall be given by the Property
Trustee without the prior consent of each holder of the corresponding preferred
securities. The ACE Trustees shall not revoke any action previously authorized
or approved by a vote of the holders of the preferred securities except by
subsequent vote of the holders of the preferred securities. The Property
Trustee shall notify each holder of preferred securities of any notice of
default with respect to the corresponding ACE INA subordinated debt securities.
In addition to obtaining the foregoing approvals of the holders of the
preferred securities, prior to taking any of the foregoing actions, the ACE
Trustees shall obtain an opinion of counsel experienced in such matters to the
effect that the ACE Trust will not be classified as an association taxable as a
corporation for United States Federal income tax purposes on account of such
action. (Section 6.1)

      Any required approval or action of holders of preferred securities may be
given or taken at a meeting of holders of preferred securities convened for
such purpose or pursuant to written consent. The Property Trustee will cause a
notice of any meeting at which holders of preferred securities are entitled to
vote to be given to each holder of record of preferred securities in the manner
set forth in each restated trust agreement. (Sections 6.2, 6.3 and 6.6)

      No vote or consent of the holders of preferred securities will be
required for an ACE Trust to redeem and cancel its preferred securities in
accordance with the applicable restated trust agreement.

      Notwithstanding that holders of preferred securities are entitled to vote
or consent under any of the circumstances described above, any of the preferred
securities that are owned by ACE INA, the ACE Trustees or any affiliate of ACE
INA or any ACE Trustees, shall, for purposes of such vote or consent, be
treated as if they were not outstanding.

Global Preferred Securities

      The preferred securities of an ACE Trust may be issued in whole or in
part in the form of one or more global preferred securities that will be
deposited with, or on behalf of, the depositary identified in the prospectus
supplement.

      The specific terms of the depositary arrangement with respect to the
preferred securities of an ACE Trust will be described in the related
prospectus supplement. ACE INA anticipates that the following provisions will
generally apply to depositary arrangements.

      Upon the issuance of a global preferred security, and the deposit of such
global preferred security with or on behalf of the depositary, the depositary
for such global preferred security or its nominee will credit, on its bookentry
registration and transfer system, the respective aggregate liquidation amounts
of the individual preferred securities represented by such global preferred
securities to the accounts of participants. Such accounts shall be designated
by the underwriters or agents with respect to such preferred securities or by
ACE INA if such preferred securities are offered and sold directly by ACE INA.
Ownership of beneficial interests in a global preferred security will be
limited to participants or persons that may hold interests through
participants. Ownership of beneficial interests in such global preferred
security will be shown on, and the transfer of that ownership will be effected
only through, records maintained by the depositary or its nominee

                                       68
<PAGE>

(with respect to interests of participants) and the records of participants
(with respect to interests of persons who hold through participants). The laws
of some states require that certain purchasers of securities take physical
delivery of such securities in definitive form. Such limits and such laws may
impair the ability to transfer beneficial interests in a global preferred
security.

      So long as the depositary for a global preferred security, or its
nominee, is the registered owner of such global preferred security, such
depositary or such nominee, as the case may be, will be considered the sole
owner or holder of the preferred securities represented by such global
preferred security for all purposes under the restated trust agreement
governing such preferred securities. Except as provided below, owners of
beneficial interests in a global preferred security will not be entitled to
have any of the individual preferred securities represented by such global
preferred security registered in their names, will not receive or be entitled
to receive physical delivery of any such preferred securities in definitive
form and will not be considered the owners or holders thereof under the
restated trust agreement.

      Payments of any liquidation amount, premium or distributions in respect
of individual preferred securities registered in the name of a depositary or
its nominee will be made to the depositary or its nominee, as the case may be,
as the registered owner of the global preferred security representing such
preferred securities. None of ACE, ACE INA, the Property Trustee, any paying
agent, or the securities registrar for such preferred securities will have any
responsibility or liability for any aspect of the records relating to or
payments made on account of beneficial ownership interests of the global
preferred security representing such preferred securities or for maintaining,
supervising or reviewing any records relating to such beneficial ownership
interests.

      ACE INA expects that the depositary or its nominee, upon receipt of any
payment in respect of a global preferred security representing any ACE Trust's
preferred securities, will credit immediately participants' accounts with
payments in amounts proportionate to their respective beneficial interest in
the aggregate liquidation amount of such global preferred security for such
preferred securities as shown on the records of such depositary or its nominee.
ACE INA also expects that payments by participants to owners of beneficial
interests in such global preferred security held through such participants will
be governed by standing instructions and customary practices, as is now the
case with securities held for the accounts of customers in bearer form or
registered in "street name" and will be the responsibility of such
participants.

      Unless otherwise specified in the applicable prospectus supplement, the
restated trust agreement of each ACE Trust will provide that (1) if ACE INA
advises the ACE Trustees in writing that the depositary is no longer willing or
able to act as depositary and ACE fails to appoint a qualified successor within
90 days, (2) ACE INA at its option advises the ACE Trustees in writing that it
elects to terminate the book-entry system through the depositary or (3) after
the occurrence of an event of default under the corresponding ACE INA
subordinated debt securities, owners of preferred securities representing at
least a majority of liquidation amount of such preferred securities advise the
Property Trustee in writing that the continuation of a book-entry system
through the depositary is no longer in their best interests, then the global
preferred securities will be exchanged for preferred securities in definitive
form in accordance with the instructions of the depositary. It is expected that
such instructions may be based upon directions received by the depositary from
participants with respect to ownership of beneficial interests in global
preferred securities. Individual preferred securities so issued will be issued
in authorized denominations.

Payment and Paying Agency

      Payments of distributions in respect of the preferred securities shall be
made to the depositary, which shall credit the relevant accounts at the
depositary on the applicable distribution dates or, if any ACE Trust's
preferred securities are not held by the depositary, such payments shall be
made by check mailed to the address of the holder entitled thereto as such
address shall appear on the register that ACE Trust. (Section 4.4) Unless
otherwise specified in the applicable prospectus supplement, the paying agent
shall initially be The First

                                       69
<PAGE>

National Bank of Chicago and any co-paying agent chosen by The First National
Bank of Chicago and acceptable to the Administrative Trustees and ACE. The
paying agent shall be permitted to resign as paying agent upon 30 days written
notice to the Administrative Trustees, the Property Trustee and ACE INA. In the
event The First National Bank of Chicago shall no longer be the paying agent,
the Administrative Trustees shall appoint a successor (which shall be a bank or
trust company acceptable to the Administrative Trustees and ACE INA) to act as
paying agent. (Section 5.9)

Registrar and Transfer Agent

      Unless otherwise specified in the applicable prospectus supplement, The
First National Bank of Chicago will act as registrar and transfer agent for the
preferred securities.

      Registration of transfers and exchanges of preferred securities will be
effected without charge by or on behalf of each ACE Trust, but upon payment of
any tax or other governmental charges that may be imposed in connection with
any transfer or exchange. The ACE Trusts will not be required to register or
cause to be registered the transfer of their preferred securities after such
preferred securities have been called for redemption. (Section 5.4)

Information Concerning the Property Trustee

      The Property Trustee undertakes to perform only those duties specifically
set forth in each restated trust agreement, provided that it must exercise the
same degree of care as a prudent person would exercise in the conduct of his or
her own affairs. Subject to this provision, the Property Trustee is under no
obligation to exercise any of the powers vested in it by the applicable
restated trust agreement at the request of any holder of preferred securities
unless it is offered reasonable indemnity against the costs, expenses and
liabilities that might be incurred thereby. If in performing its duties under
the restated trust agreement, the Property Trustee is required to decide
between alternative causes of action, construe ambiguous provisions in the
applicable restated trust agreement or is unsure of the application of any
provision of the applicable restated trust agreement, and the matter is not one
on which holders of preferred securities are entitled under such restated trust
agreement to vote, then the Property Trustee shall take such action as is
directed by ACE INA. If it is not so directed, the Property Trustee shall take
such action as it deems advisable and in the best interests of the holders of
the trust securities and will have no liability except for its own bad faith,
negligence or willful misconduct. (Sections 8.1 and 8.3)

Administrative Trustees

      The Administrative Trustees are authorized and directed to conduct the
affairs of and to operate the ACE Trusts in such a way that no ACE Trust will
be deemed to be an "investment company" required to be registered under the
Investment Company Act or classified as an association taxable as a corporation
for United States Federal income tax purposes and so that the corresponding ACE
INA subordinated debt securities will be treated as indebtedness of ACE INA for
United States Federal income tax purposes. In this connection, ACE INA and the
Administrative Trustees are authorized to take any action not inconsistent with
applicable law, the certificate of trust of each ACE Trust or each restated
trust agreement, that ACE INA and the Administrative Trustees determine in
their discretion to be necessary or desirable for such purposes, as long as
such action does not materially adversely affect the interests of the holders
of the related preferred securities.

                 DESCRIPTION OF PREFERRED SECURITIES GUARANTEES

      Concurrently with the issuance by each ACE Trust of its preferred
securities, ACE will execute and deliver a preferred securities guarantee for
the benefit of the holders from time to time of such preferred securities. The
First National Bank of Chicago will act as indenture trustee ("Guarantee
Trustee") under each preferred securities guarantee for the purposes of
compliance with the Trust Indenture Act, and each preferred

                                       70
<PAGE>

securities guarantee will be qualified as an indenture under the Trust
Indenture Act. Because the following summary of certain provisions of the
preferred securities guarantees is not complete, you should refer to the form
of preferred securities guarantee and the Trust Indenture Act for more complete
information regarding the provisions of each preferred securities guarantee,
including the definitions of some of the terms used below. The form of the
preferred securities guarantee has been filed as an exhibit to the registration
statement of which this prospectus forms a part. Reference in this summary to
preferred securities means that ACE Trust's preferred securities to which a
preferred securities guarantee relates. The Guarantee Trustee will hold each
preferred securities guarantee for the benefit of the holders of the related
ACE Trust's preferred securities.

General

      ACE will irrevocably agree to pay in full on a subordinated basis, to the
extent described herein, the Guarantee Payments (as defined below) (without
duplication of amounts theretofore paid by or on behalf of the ACE Trust) to
the holders of the preferred securities, as and when due, regardless of any
defense, right of setoff or counterclaim that such ACE Trust may have or assert
other than the defense of payment. The following payments with respect to the
preferred securities, to the extent not paid by or on behalf of the related ACE
Trust (the "Guarantee Payments"), will be subject to the preferred securities
guarantee:

      1. any accrued and unpaid distributions required to be paid on such
    preferred securities, to the extent that the ACE Trust has funds on hand
    available for payment at such time,

      2. the redemption price, including all accrued and unpaid
    distributions to the redemption date, with respect to any preferred
    securities called for redemption, to the extent that the ACE Trust has
    funds on hand available for payment at such time, and

      3. upon a voluntary or involuntary dissolution, winding up or
    liquidation of the ACE Trust (unless the corresponding ACE INA
    subordinated debt securities are distributed to holders of such
    preferred securities), the lesser of (a) the Liquidation Distribution,
    to the extent such ACE Trust has funds available for payment at such
    time and (b) the amount of assets of such ACE Trust remaining available
    for distribution to holders of preferred securities.

      ACE's obligation to make a Guarantee Payment may be satisfied by direct
payment of the required amounts by ACE to the holders of the applicable
preferred securities or by causing the ACE Trust to pay such amounts to such
holders. (Section 5.1)

      Each preferred securities guarantee will be an irrevocable guarantee on a
subordinated basis of the related ACE Trust's payment obligations under the
preferred securities, but will apply only to the extent that such related ACE
Trust has funds sufficient to make such payments. Each preferred securities
guarantee is, to that extent, a guarantee of payment and not a guarantee of
collection. See "--Status of the Preferred Securities Guarantees."

      If ACE INA or ACE does not make interest payments on the corresponding
ACE INA subordinated debt securities held by an ACE Trust, the ACE Trust will
not be able to pay distributions on the preferred securities and will not have
funds legally available for payment. Each preferred securities guarantee will
rank subordinate and junior in right of payment to all Senior Indebtedness of
ACE (including all ACE debt securities and ACE's obligations as guarantor under
the ACE INA subordinated indenture) as described below under "--Status of the
Preferred Securities Guarantees" and in the related prospectus supplement.
Because ACE is a holding company, its rights and the rights of its creditors
(including the holders of preferred securities who are creditors of ACE by
virtue of a preferred securities guarantee) and shareholders, to participate in
any distribution of assets of any subsidiary upon such subsidiary's liquidation
or reorganization or otherwise would be subject to the prior claims of the
subsidiary's creditors, except to the extent that ACE may itself be a creditor
with recognized claims against the subsidiary. The right of creditors of ACE
(including the holders of preferred securities who are creditors of ACE by
virtue of a preferred securities guarantee) to participate in the distribution
of stock owned by ACE in certain of its subsidiaries, including ACE's insurance
subsidiaries, may

                                       71
<PAGE>

also be subject to approval by certain insurance regulatory authorities having
jurisdiction over such subsidiaries. Except as otherwise provided in the
applicable prospectus supplement, the preferred securities guarantees do not
limit the ability of ACE or ACE INA to incur or issue other secured or
unsecured debt, whether under an indenture or otherwise.

      ACE's obligations described herein and in any accompanying prospectus
supplement, through the applicable preferred securities guarantee, the ACE INA
subordinated indenture (including the ACE guarantee of the ACE INA subordinated
debt securities) and any supplemental indentures thereto and the expense
agreement described below, taken together, constitute a full, irrevocable and
unconditional guarantee by ACE of payments due on the preferred securities. No
single document standing alone or operating in conjunction with fewer than all
of the other documents constitutes such guarantee. It is only the combined
operation of these documents that has the effect of providing a full,
irrevocable and unconditional guarantee of the ACE Trust's obligations under
the preferred securities. See "The ACE Trusts," "Description of Preferred
Securities," and "Description of ACE INA Debt Securities and ACE Guarantee."

      ACE will also agree to guarantee the obligations of each ACE Trust with
respect to the common securities issued by the ACE Trust to the same extent as
under the preferred securities guarantee, except that if an Event of Default
under the ACE INA subordinated indenture has occurred and is continuing, the
holders of preferred securities under the preferred securities guarantee will
have priority over the holders of the common securities under the common
securities guarantee with respect to distributions and payments on liquidation,
redemption or otherwise.

Status of the Preferred Securities Guarantees

      Each preferred securities guarantee will constitute an unsecured
obligation of ACE and will rank subordinate and junior in right of payment to
all Senior Indebtedness of ACE (including all ACE debt securities and ACE's
obligations as guarantor under the ACE INA subordinate indenture). (Section
6.2) For purposes of any preferred securities guarantee, "Senior Indebtedness"
means all Indebtedness of ACE (including its obligations as guarantor under the
ACE INA subordinated indenture) outstanding at any time, except (a) the
Indebtedness under the preferred securities guarantee, (b) Indebtedness as to
which, by the terms of the instrument creating or evidencing the same, it is
provided that such Indebtedness is subordinated to or ranks equally with the
preferred securities guarantee or to other Indebtedness of ACE which is
subordinated to or ranks equally with the preferred securities guarantee, (c)
Indebtedness of ACE to an affiliate of ACE, (d) interest accruing after the
filing of a petition initiating any bankruptcy, insolvency or other similar
proceeding unless such interest is an allowed claim enforceable against ACE in
a proceeding under federal or state bankruptcy laws, (e) trade accounts payable
and (f) similar preferred securities guarantees issued by ACE on behalf of
holders of preferred securities of any other ACE Trust or any trust,
partnership or other entity affiliated with ACE which is a financing vehicle of
ACE or any affiliate of ACE in connection with the issuance by such entity of
preferred securities or other similar securities that are guaranteed by ACE
pursuant to an instrument that ranks equally with or junior in right of payment
to the preferred securities guarantee. "Indebtedness" has the same meaning
given to that term under the ACE indentures. (Section 1.1).

      Each preferred securities guarantee will rank equally with all other
similar preferred securities guarantees issued by ACE on behalf of holders of
preferred securities of any other ACE Trust or any trust, partnership or other
entity affiliated with ACE which is a financing vehicle of ACE or any affiliate
of ACE in connection with the issuance by such entity of preferred securities
or other similar securities that are guaranteed by ACE pursuant to an
instrument that ranks equally with or junior in right of payment to the
preferred securities guarantee. (Section 6.3). Each preferred securities
guarantee will constitute a guarantee of payment and not of collection. This
means that the guaranteed party may, to the extent permitted by law, institute
a legal proceeding directly against ACE to enforce its rights under the
preferred securities guarantee without first instituting a legal proceeding
against any other person or entity (including the applicable ACE Trust)
(Section 5.4). Each preferred securities guarantee will not be discharged
except by payment of the Guarantee Payments

                                       72
<PAGE>

in full to the extent not paid by the ACE Trust or upon distribution to the
holders of the preferred securities of the corresponding ACE INA subordinated
debt securities. None of the preferred securities guarantees places a
limitation on the amount of additional Indebtedness that may be incurred by ACE
or ACE INA. ACE expects from time to time to incur additional Indebtedness that
will rank senior to the preferred securities guarantees.

Payment of Additional Amounts

      ACE will make all Guarantee Payments pursuant to the preferred securities
guarantee without withholding or deduction at source for, or on account of, any
present or future taxes, fees, duties, assessments or governmental charges of
whatever nature imposed or levied by or on behalf of the Cayman Islands or
Bermuda (each, a "taxing jurisdiction") or any political subdivision or taxing
authority thereof or therein, unless such taxes, fees, duties, assessments or
governmental charges are required to be withheld or deducted by (x) the laws
(or any regulations or rulings promulgated thereunder) of a taxing jurisdiction
or any political subdivision or taxing authority thereof or therein or (y) an
official position regarding the application, administration, interpretation or
enforcement of any such laws, regulations or rulings (including, without
limitation, a holding by a court of competent jurisdiction or by a taxing
authority in a taxing jurisdiction or any political subdivision thereof). If a
withholding or deduction at source is required, ACE will, subject to certain
limitations and exceptions described below, pay to the holder of any related
preferred securities such additional amounts as may be necessary so that every
Guarantee Payment pursuant to the preferred securities guarantee made to such
holder, after such withholding or deduction, will not be less than the amount
provided for in such preferred securities guarantee to be then due and payable.

      ACE will not be required to pay any additional amounts for or on account
of:

      1. any tax, fee, duty, assessment or governmental charge of whatever
    nature which would not have been imposed but for the fact that such
    holder (a) was a resident, domiciliary or national of, or engaged in
    business or maintained a permanent establishment or was physically
    present in, the relevant taxing jurisdiction or any political
    subdivision thereof or otherwise had some connection with the relevant
    taxing jurisdiction other than by reason of the mere ownership of
    preferred securities, or receipt of payment under such preferred
    securities, (b) presented such preferred security for payment in the
    relevant taxing jurisdiction or any political subdivision thereof,
    unless such preferred security could not have been presented for payment
    elsewhere, or (c) presented such preferred security for payment more
    than 30 days after the date on which the payment in respect of such
    preferred security first became due and payable or provided for,
    whichever is later, except to the extent that the holder would have been
    entitled to such additional amounts if it had presented such preferred
    security for payment on any day within that 30-day period;

      2. any estate, inheritance, gift, sale, transfer, personal property or
    similar tax, assessment or other governmental charge;

      3. any tax, assessment or other governmental charge that is imposed or
    withheld by reason of the failure by the holder or the beneficial owner
    of such preferred security to comply with any reasonable request by ACE
    or the applicable ACE Trust addressed to the holder within 90 days of
    such request (a) to provide information concerning the nationality,
    residence or identity of the holder or such beneficial owner or (b) to
    make any declaration or other similar claim or satisfy any information
    or reporting requirement, which in either case is required or imposed by
    statute, treaty, regulation or administrative practice of the relevant
    taxing jurisdiction or any political subdivision thereof as a
    precondition to exemption from all or part of such tax, assessment or
    other governmental charge; or

      4. any combination of items (1), (2) and (3).

      In addition, ACE will not pay any additional amounts with respect to any
Guarantee Payment to any holder who is a fiduciary or partnership or other than
the sole beneficial owner of the related preferred security

                                       73
<PAGE>

to the extent such payment would be required by the laws of the relevant taxing
jurisdiction (or any political subdivision or relevant taxing authority thereof
or therein) to be included in the income for tax purposes of a beneficiary or
partner or settlor with respect to such fiduciary or a member of such
partnership or a beneficial owner who would not have been entitled to such
additional amounts had it been the holder of such preferred security. (Section
5.8)

Amendments and Assignment

      Except with respect to any changes which do not materially adversely
affect the rights of holders of the related preferred securities (in which case
no consent will be required), no preferred securities guarantee may be amended
without the prior approval of the holders of not less than a majority of the
aggregate liquidation amount of such outstanding preferred securities. (Section
8.2). All guarantees and agreements contained in each preferred securities
guarantee shall bind the successors, assigns, receivers, trustees and
representatives of ACE and shall inure to the benefit of the holders of the
related preferred securities then outstanding. (Section 8.1) Except in
connection with a consolidation, amalgamation or merger or conveyance, transfer
or lease involving ACE that is permitted under the ACE INA subordinated
indenture and under which the person formed by such consolidation or
amalgamation or into which ACE is merged or which acquires or leases the
properties and assets of ACE agrees in writing to perform ACE's obligations
under the preferred securities guarantee, ACE may not assign its obligations
thereunder.

Events of Default

      An event of default under each preferred securities guarantee will occur
upon the failure of ACE to perform any of its payment or other obligations
thereunder. The holders of not less than a majority in aggregate liquidation
amount of the related preferred securities have the right to direct the time,
method and place of conducting any proceeding for any remedy available to the
Guarantee Trustee in respect of such preferred securities guarantee or to
direct the exercise of any trust or power conferred upon the Guarantee Trustee
under such preferred securities guarantee. (Section 5.4)

      Any holder of the preferred securities may institute a legal proceeding
directly against ACE to enforce its rights under such preferred securities
guarantee without first instituting a legal proceeding against the ACE Trust,
the Guarantee Trustee or any other person or entity. (Section 5.4)

      ACE, as guarantor, is required to file annually with the Guarantee
Trustee a certificate as to whether or not ACE is in compliance with all the
conditions and covenants applicable to it under the preferred securities
guarantee. (Section 2.4)

Information Concerning the Guarantee Trustee

      The Guarantee Trustee, other than during the occurrence and continuance
of a default by ACE in performance of any preferred securities guarantee,
undertakes to perform only such duties as are specifically set forth in each
preferred securities guarantee and, after default with respect to any preferred
securities guarantee, must exercise the same degree of care and skill as a
prudent person would exercise or use in the conduct of his or her own affairs.
(Section 3.1). Subject to this provision, the Guarantee Trustee is under no
obligation to exercise any of the powers vested in it by any preferred
securities guarantee at the request of any holder of any preferred securities
unless it is offered reasonable indemnity against the costs, expenses, and
liabilities that might be incurred thereby. (Section 3.2)

Termination of the Preferred Securities Guarantees

      Each preferred securities guarantee will terminate and be of no further
force and effect upon (1) full payment of the redemption price of the related
preferred securities, (2) the distribution of the corresponding ACE INA
subordinated debt securities to the holders of the related preferred securities
or (3) upon full payment of the amounts payable upon liquidation of the related
ACE Trust. Each preferred securities guarantee will

                                       74
<PAGE>

continue to be effective or will be reinstated, as the case may be, if at any
time any holder of the related preferred securities must restore payment of any
sums paid with respect to such preferred securities or such preferred
securities guarantee. (Section 7.1)

New York Law to Govern

      Each preferred securities guarantee will be governed by and construed in
accordance with the laws of the State of New York applicable to agreements made
and performed in that state. (Section 8.5)

The Expense Agreement

      Pursuant to the expense agreement entered into by ACE under the restated
trust agreement, ACE will irrevocably and unconditionally guarantee to each
person or entity to whom an ACE Trust becomes indebted or liable, the full
payment of any costs, expenses or liabilities of the ACE Trust, other than
obligations of the ACE Trust to pay to the holders of the preferred securities
or other similar interests in the ACE Trust of the amounts due such holders
pursuant to the terms of the preferred securities or such other similar
interests, as the case may be.

                    DESCRIPTION OF STOCK PURCHASE CONTRACTS
                            AND STOCK PURCHASE UNITS

      ACE may issue stock purchase contracts, representing contracts obligating
holders to purchase from ACE, and obligating ACE to sell to the holders, a
specified number of ordinary shares at a future date or dates. The price per
ordinary share may be fixed at the time the stock purchase contracts are issued
or may be determined by reference to a specific formula set forth in the stock
purchase contracts. The stock purchase contracts may be issued separately or as
a part of stock purchase units consisting of a stock purchase contract and, as
security for the holder's obligations to purchase the ordinary shares under the
stock purchase contracts, either (1) senior debt securities or subordinated
debt securities of ACE INA, fully and unconditionally guaranteed by ACE, (2)
debt obligations of third parties, including U.S. Treasury securities, or (3)
preferred securities of ACE or an ACE Trust. The stock purchase contracts may
require us to make periodic payments to the holders of the stock purchase units
or vice versa, and such payments may be unsecured or prefunded on some basis.
The stock purchase contracts may require holders to secure their obligations in
a specified manner and in certain circumstances we may deliver newly issued
prepaid stock purchase contracts upon release to a holder of any collateral
securing such holder's obligations under the original stock purchase contract.

      The applicable prospectus supplement will describe the terms of any stock
purchase contracts or stock purchase units and, if applicable, prepaid stock
purchase contracts. The description in the prospectus supplement will not
purport to be complete and will be qualified in its entirety by reference to
(1) the stock purchase contracts, (2) the collateral arrangements and
depositary arrangements, if applicable, relating to such stock purchase
contracts or stock purchase units and (3) if applicable, the prepaid stock
purchase contracts and the document pursuant to which such prepaid stock
purchase contracts will be issued.

                              PLAN OF DISTRIBUTION

      ACE, ACE INA and/or any ACE Trust may sell offered securities in any one
or more of the following ways from time to time: (1) through agents; (2) to or
through underwriters; (3) through dealers; or (4) directly to purchasers. The
prospectus supplement with respect to the offered securities will set forth the
terms of the offering of the offered securities, including the name or names of
any underwriters, dealers or agents; the purchase price of the offered
securities and the proceeds to ACE, ACE INA and/or an ACE Trust from such sale;
any underwriting discounts and commissions or agency fees and other items
constituting underwriters' or agents' compensation; any initial public offering
price and any discounts or concessions allowed or reallowed

                                       75
<PAGE>

or paid to dealers and any securities exchange on which such offered securities
may be listed. Any initial public offering price, discounts or concessions
allowed or reallowed or paid to dealers may be changed from time to time.

      The distribution of the offered securities may be effected from time to
time in one or more transactions at a fixed price or prices, which may be
changed, at market prices prevailing at the time of sale, at prices related to
such prevailing market prices or at negotiated prices.

      Offers to purchase offered securities may be solicited by agents
designated by ACE from time to time. Any such agent involved in the offer or
sale of the offered securities in respect of which this prospectus is delivered
will be named, and any commissions payable by ACE, ACE INA and/or the
applicable ACE Trust to such agent will be set forth, in the applicable
prospectus supplement. Unless otherwise indicated in such prospectus
supplement, any such agent will be acting on a reasonable best efforts basis
for the period of its appointment. Any such agent may be deemed to be an
underwriter, as that term is defined in the Securities Act, of the offered
securities so offered and sold.

      If offered securities are sold by means of an underwritten offering, ACE,
ACE INA and/or the applicable ACE Trust will execute an underwriting agreement
with an underwriter or underwriters, and the names of the specific managing
underwriter or underwriters, as well as any other underwriters, and the terms
of the transaction, including commissions, discounts and any other compensation
of the underwriters and dealers, if any, will be set forth in the prospectus
supplement which will be used by the underwriters to make resales of the
offered securities. If underwriters are utilized in the sale of the offered
securities, the offered securities will be acquired by the underwriters for
their own account and may be resold from time to time in one or more
transactions, including negotiated transactions, at fixed public offering
prices or at varying prices determined by the underwriters at the time of sale.
Offered securities may be offered to the public either through underwriting
syndicates represented by managing underwriters or directly by the managing
underwriters. If any underwriter or underwriters are utilized in the sale of
the offered securities, unless otherwise indicated in the prospectus
supplement, the underwriting agreement will provide that the obligations of the
underwriters are subject to certain conditions precedent and that the
underwriters with respect to a sale of offered securities will be obligated to
purchase all such offered securities of a series if any are purchased.

      ACE, ACE INA and/or the applicable ACE Trust may grant to the
underwriters options to purchase additional offered securities, to cover over-
allotments, if any, at the public offering price (with additional underwriting
discounts or commissions), as may be set forth in the prospectus supplement
relating thereto. If ACE, ACE INA and/or the applicable ACE Trust grants any
over-allotment option, the terms of such over-allotment option will be set
forth in the prospectus supplement relating to such offered securities.

      If a dealer is utilized in the sales of offered securities in respect of
which this prospectus is delivered, ACE, ACE INA and/or the applicable ACE
Trust will sell such offered securities to the dealer as principal. The dealer
may then resell such offered securities to the public at varying prices to be
determined by such dealer at the time of resale. Any such dealer may be deemed
to be an underwriter, as such term is defined in the Securities Act, of the
offered securities so offered and sold. The name of the dealer and the terms of
the transaction will be set forth in the related prospectus supplement.

      Offers to purchase offered securities may be solicited directly by ACE,
ACE INA and/or the applicable ACE Trust and the sale thereof may be made by
ACE, ACE INA and/or the applicable ACE Trust directly to institutional
investors or others, who may be deemed to be underwriters within the meaning of
the Securities Act with respect to any resale thereof. The terms of any such
sales will be described in the related prospectus supplement.

      Offered securities may also be offered and sold, if so indicated in the
applicable prospectus supplement, in connection with a remarketing upon their
purchase, in accordance with a redemption or

                                       76
<PAGE>

repayment pursuant to their terms, or otherwise, by one or more firms
("remarketing firms"), acting as principals for their own accounts or as agents
for ACE, ACE INA and/or the applicable ACE Trust. Any remarketing firm will be
identified and the terms of its agreements, if any, with ACE, ACE INA and/or an
ACE Trust and its compensation will be described in the applicable prospectus
supplement. Remarketing firms may be deemed to be underwriters, as such term is
defined in the Securities Act, in connection with the offered securities
remarketed thereby.

      Agents, underwriters, dealers and remarketing firms may be entitled under
relevant agreements entered into with ACE, ACE INA and/or the applicable ACE
Trust to indemnification by ACE, ACE INA and/or the applicable ACE Trust
against certain civil liabilities, including liabilities under the Securities
Act that may arise from any untrue statement or alleged untrue statement of a
material fact or any omission or alleged omission to state a material fact in
this prospectus, any supplement or amendment hereto, or in the registration
statement of which this prospectus forms a part, or to contribution with
respect to payments which the agents, underwriters or dealers may be required
to make.

      If so indicated in the prospectus supplement, ACE, ACE INA and/or the
applicable ACE Trust will authorize underwriters or other persons acting as
ACE's, ACE INA's and/or the applicable ACE Trust's agents to solicit offers by
certain institutions to purchase offered securities from ACE, ACE INA and/or
the applicable ACE Trust, pursuant to contracts providing for payments and
delivery on a future date. Institutions with which such contracts may be made
include commercial and savings banks, insurance companies, pension funds,
investment companies, educational and charitable institutions and others, but
in all cases such institutions must be approved by ACE, ACE INA and/or the
applicable ACE Trust. The obligations of any purchaser under any such contract
will be subject to the condition that the purchase of the offered securities
shall not at the time of delivery be prohibited under the laws of the
jurisdiction to which such purchaser is subject. The underwriters and such
other agents will not have any responsibility in respect of the validity or
performance of such contracts.

      Each series of offered securities will be a new issue and, other than the
ordinary shares, which are listed on the NYSE, will have no established trading
market. ACE, ACE INA and/or the applicable ACE Trust may elect to list any
series of offered securities on an exchange, and in the case of the ordinary
shares, on any additional exchange, but, unless otherwise specified in the
applicable prospectus supplement, none of ACE, ACE INA or any ACE Trust shall
be obligated to do so. No assurance can be given as to the liquidity of the
trading market for any of the offered securities.

      Underwriters, dealers, agents and remarketing firms may be customers of,
engage in transactions with, or perform services for, ACE and its subsidiaries
in the ordinary course of business.

                                 LEGAL OPINIONS

      Certain legal matters with respect to United States and New York law will
be passed upon for ACE, ACE INA and the ACE Trusts by Mayer, Brown & Platt,
Chicago, Illinois. The validity of the preferred securities under Delaware law
will be passed upon on behalf of ACE, ACE INA and the ACE Trusts by Richards,
Layton & Finger, P.A., Wilmington, Delaware. Certain legal matters with respect
to Cayman Islands law will be passed upon for ACE by Maples and Calder, George
Town, Grand Cayman, Cayman Islands, British West Indies. Certain legal matters
with respect to Bermuda law will be passed upon for ACE by Conyers Dill &
Pearman, Hamilton, Bermuda. Certain legal matters will be passed upon for the
underwriters, dealers or agents, if any, by Brown & Wood LLP, New York, New
York. Mayer, Brown & Platt and Brown & Wood LLP will rely on the opinion of
Maples and Calder with respect to Cayman Islands law and the opinion of
Conyers, Dill & Pearman with respect to Bermuda law.

                                       77
<PAGE>

                                    EXPERTS

      The consolidated financial statements and financial statement schedules
incorporated in this prospectus by reference to ACE's Annual Report on Form 10-
K for the year ended December 31, 1999 have been so incorporated in reliance on
the reports of PricewaterhouseCoopers LLP, independent accountants, given on
the authority of said firm as experts in accounting and auditing. Any audited
financial statements and schedules that are incorporated or that are deemed to
be incorporated by reference into this prospectus that are the subject of a
report by independent accountants will be so incorporated by reference in
reliance upon such reports and upon the authority of such firms as experts in
accounting and auditing to the extent covered by consents of these accountants
filed with the SEC.

                     ENFORCEMENT OF CIVIL LIABILITIES UNDER
                     UNITED STATES FEDERAL SECURITIES LAWS

      ACE is a Cayman Islands company. In addition, some of its officers and
directors, as well as some of the experts named in this prospectus, reside
outside the United States, and all or much of its assets and their assets are
or may be located in jurisdictions outside the United States. Therefore,
investors may have difficulty effecting service of process within the United
States upon those persons or recovering against ACE or them on judgments of
U.S. courts, including judgments based upon the civil liability provisions of
the U.S. Federal securities laws. However, investors may serve ACE with process
in the United States with respect to actions against it arising out of or in
connection with violations of U.S. Federal securities laws relating to offers
and sales of the securities covered by this prospectus by serving CT
Corporation System, 1633 Broadway, New York, New York 10019, its United States
agent irrevocably appointed for that purpose.

      ACE has been advised by Maples and Calder, its Cayman Islands counsel,
that there is doubt as to whether the courts of the Cayman Islands would
enforce (i) judgments of U.S. courts based upon the civil liability provisions
of the U.S. Federal securities laws obtained in actions against it or its
directors and officers, as well as experts named in this prospectus, who reside
outside the United States or (ii) original actions brought in the Cayman
Islands against such persons or ACE predicated solely upon U.S. Federal
securities laws. ACE has also been advised by Maples and Calder that there is
no treaty in effect between the United States and the Cayman Islands providing
for such enforcement, and there are grounds upon which Cayman Islands courts
may not enforce judgments of United States courts. Certain remedies available
under the laws of United States jurisdictions, including certain remedies
available under the U.S. Federal securities laws, would not be allowed in
Cayman Islands courts as contrary to that nations's public policy.

                      WHERE YOU CAN FIND MORE INFORMATION

ACE

      ACE files annual, quarterly and special reports, proxy statements and
other information with the SEC. ACE's SEC filings are available to the public
over the Internet at the SEC's web site at http://www.sec.gov. You may also
read and copy any document ACE files with the SEC at its public reference
facilities in Washington, D.C., New York, New York or Chicago, Illinois. You
can also obtain copies of the documents at prescribed rates by writing to the
Public Reference Section of the SEC at 450 Fifth Street, N.W., Washington, D.C.
20549. Please call the SEC at 1-800-SEC-0330 for further information on the
operation of the public reference facilities. ACE's SEC filings are also
available at the office of the New York Stock Exchange, 20

                                       78
<PAGE>

Broad Street, New York, New York 10005. For further information on obtaining
copies of ACE's public filings at the NYSE, you should call (212) 656-5060.

      ACE is allowed to "incorporate by reference" the information it files
with the SEC, which means that ACE can disclose important information to you by
referring you to those documents. The information incorporated by reference is
an important part of this prospectus, and information that ACE files
subsequently with the SEC will automatically update and supersede the
information included and/or incorporated by reference in this prospectus. ACE
incorporates by reference the documents listed below and any future filings
made with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Securities
Exchange Act of 1934, as amended, after the initial filing of the registration
statement that contains this prospectus and prior to the time that ACE, ACE INA
and the ACE Trusts sell all of the securities offered by this prospectus:

    .  ACE's Annual Report on Form 10-K for the fiscal year ended December
       31, 1999; and

    .  ACE's Current Report on Form 8-K filed January 14, 2000;

      You may request a copy of these filings (other than exhibits, unless that
exhibit is specifically incorporated by reference into that filing) at no cost,
by writing or telephoning ACE at the following address:

      Investor Relations
      ACE Limited
      The ACE Building
      30 Woodbourne Avenue
      Hamilton, HM 08, Bermuda
      Telephone: (441) 299-9283
ACE INA

      ACE INA is a newly formed entity and has no direct operations. ACE INA is
directly and indirectly wholly owned by ACE. The obligations of ACE INA under
its debt securities will be fully and unconditionally guaranteed by ACE. See
"Description of ACE INA Debt Securities and ACE Guarantee." ACE INA is not
currently subject to the information reporting requirements under the Exchange
Act. ACE INA will become subject to the reporting requirements upon the
effectiveness of the registration statement that contains this prospectus,
although ACE INA intends to seek and expects to receive an exemption from those
requirements. So long as any guaranteed debt securities of ACE INA are
outstanding, ACE will include in the footnotes to its audited consolidated
financial statements summarized consolidated financial information concerning
ACE INA.

The ACE Trusts

      There are no separate financial statements of the ACE Trusts in this
prospectus. ACE does not believe the financial statements would be helpful to
the holders of the preferred securities of the ACE Trusts because:

    .  ACE, a reporting company under the Exchange Act, will directly or
       indirectly own all of the voting securities of each ACE Trust;

    .  None of the ACE Trusts has any independent operations or proposes to
       engage in any activity other than issuing securities representing
       undivided beneficial interests in the assets of the ACE Trust and
       investing the proceeds in subordinated debt securities issued by ACE
       INA and fully and unconditionally guaranteed by ACE; and

    .  The obligations of each ACE Trust under the preferred securities will
       be fully and unconditionally guaranteed by ACE. See "Description of
       ACE INA Debt Securities and ACE Guarantee" and "Description of
       Preferred Securities Guarantees."

      None of the ACE Trusts is currently subject to the information reporting
requirements of the Exchange Act. Each ACE Trust will become subject to the
requirements upon the effectiveness of the registration statement that contains
this prospectus, although each ACE Trust intends to seek and expects to receive
an exemption from those requirements. If the ACE Trusts did not receive such an
exemption, the expenses of operating the ACE Trusts would increase, as would
the likelihood that ACE would exercise its option to dissolve and liquidate the
ACE Trusts early.

                                       79
<PAGE>

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

                               11,000,000 Shares

                                  ACE Limited

                                  ACE Limited

                      ----------------------------------

                             Prospectus Supplement

                               September 6, 2000

                      ----------------------------------


                         Banc of America Securities LLC


--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission