Holding(s) in Company

Amlin Plc
                  

TR-1(i): NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached (ii):

Amlin plc

2. Reason for the notification (please state Yes/No):

An acquisition or disposal of voting rights: Yes

An acquisition or disposal of financial instruments which may result in the
acquisition of shares already issued to which voting rights are attached:

An event changing the breakdown of voting rights:

Other (please specify) :

3. Full name of person(s) subject to the notification obligation (iii):

AMVESCAP PLC

4. Full name of shareholder(s) (if different from 3.) (iv):

5. Date of the transaction (and date on which the threshold is crossed or
reached if different) (v):

30 April 2007

6. Date on which issuer notified:

1 May 2007

7. Threshold(s) that is/are crossed or reached:

10% to 9%

8. Notified details:

A: Voting rights attached to shares

-0-
*T
Class/type of shares if   Situation previous to the Triggering transaction (vi)
 possible using the ISIN
 CODE
                          Number of shares           Number of voting Rights
                                                      (viii)
GB0000319581              53,444,188                 53,444,188
*T

Resulting situation after the triggering transaction (vii)

-0-
*T
Class/type of shares if Number of shares     Number of voting rights (ix)   % of voting rights
 possible using the ISIN
 CODE
                        Direct               Direct (x)  Indirect (xi)      Direct    Indirect
GB0000319581            53,506,926                       53,506,926                   9.99
*T

B: Financial Instruments

Resulting situation after the triggering transaction (xii)

-0-
*T
Type of       Expiration Date    Exercise/Conversion   Number of voting rights % of voting rights
 financial     (xiii)             Period/ Date (xiv)    that may be acquired if
 instrument                                             the instrument is
                                                        exercised/ converted.
*T

Total (A+B)

-0-
*T
Number of voting rights % of voting rights
53,506,926              9.99
*T

9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable (xv):

Registered holders are:

Brown Brothers Harriman (New Jersey) - 31,042

Bank of Ireland - Dublin - 734,036

Bank of New York - 146,154

Bank of New York, Brussels - 62,831

Chase Bank - 134,408

Chase Nominees - 890,103

Vidacos Nominees - 36,747,333

HSBC Bank - 938,530

Japan Trustee Services Bank - 3,444

Mellon Bank, Pittsburgh - 464,735

State Street Trust & Banking - 6,620,862

Trust & Custody Services - 8,350

Northern Trust Company, London - 827,693

AiM - 5,897,405

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease to hold:

12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:

14. Contact name:

15. Contact telephone number:

Annex to Notification Of Major Interests In Shares (xvi)

A: Identity of the person or legal entity subject to the notification obligation

Full name (including legal form for legal entities):

AMVESCAP PLC

Contact address (registered office for legal entities):

30 Finsbury Square, London EC2A 1AG

Phone number:

020 7065 4000

Other useful information (at least legal representative for legal persons):

Fax: [phone]

B: Identity of the notifier, if applicable (xvii)

Full name:

Charles Pender, Group Company Secretary, Amlin plc

Contact address:

St Helen's, 1 Undershaft, London, EC3A 8ND

Phone number:

020 7746 1000

Other useful information (e.g. functional relationship with the person or legal
entity subject to the notification obligation):