Holding(s) in Company

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):

Tullett Prebon 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: Market Transfer from Direct Funds to Indirect Funds ()

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

Aviva plc & its subsidiaries

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

BNY Norwich Union Nominees Limited (3,177,368)*

Chase GA Group Nominees Limited (9,199,975)*

Chase Nominees Limited (1,006,154)*

CUIM Nominee Limited (2,040,544)*

*denotes direct interest

Chase Nominees Limited (3,025,324)

Vidacos Nominees Limited (1,124,430)

5. Date of the transaction and date on which the threshold is crossed or
reached (v): 17 September 2008

6. Date on which issuer notified: 18 September 2008

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

6% to 7% Change at Direct Interest Level.

8. Notified details:                                                           

A: Voting rights attached to shares

Class/type of shares

if possible using the ISIN CODE Situation previous to the Triggering
transaction (vi)

GB00B1H0DZ51   Number of Shares   Number of Voting Rights (viii)

               18,297,304         18,297,304

Class/type of shares

if possible using the ISIN CODE Resulting situation after the triggering
transaction(vii)

GB00B1H0DZ51   Number of shares   Number of voting rights (ix)  % of voting rights

               Direct             Direct (x)  Indirect (xi)    Direct Indirect

               15,424,041         15,424,041  4,149,754        7.16%  1.93%

B: Financial Instruments                                                       
                                                                               
Resulting situation after the triggering transaction (xii)                     
                                                                               
Type of         Expiration  Exercise/           Number of voting    % of voting
financial       date (xiii) Conversion Period/  rights that may be  rights     
instrument                  Date (xiv)          acquired if the                
                                                instrument is                  
                                                exercised/                     
                                                converted.                     
                                                                               
Total (A+B)                                                                    
                                                                               
Number of voting rights                % of voting rights                      
                                                                               
19,573,795                             9.09%                                   

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

See Section 4.

Proxy Voting:

10. Name of the proxy holder: See Section 4.

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

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

13. Additional information: Figures are based on a total number of

voting rights of 215,313,584

14. Contact name: Neil Whittaker

15. Contact telephone number: 01603 684420