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):

JPMorgan Chase & Co

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

-0-
*T
J.P. Morgan International Bank Limited
J.P. Morgan Investment Management Inc.
JF Asset Management (Taiwan) Limited
JPMorgan Asset Management (UK) Limited
*T

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

6 October 2008

6. Date on which issuer notified:

7 October 2008

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

5%

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)
GB00B2988H17               37,394,451                  37,394,451
*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 (x)   Indirect (xi)    Direct     Indirect
GB00B2988H17             19,624,490                         19,624,490                  4.19
*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
19,624,490               4.19
*T

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

Total disclosable holding for JPMorgan Chase & Co. :19,624,490 (4.19%)

Holdings by controlled undertakings of JPMorgan Chase & Co. are as follows:

-0-
*T
JPMorgan Asset Management (UK) Limited
J.P. Morgan International Bank Limited
JF Asset Management (Taiwan) Limited
J.P. Morgan Investment Management Inc.
*T

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:

Charles Pender, Group Company Secretary

15. Contact telephone number:

020 7746 1000

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):

Contact address (registered office for legal entities):

Phone number:

Jay Supaya 020 7325 4513

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

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

Full name:

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):

C: Additional information :