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 ( )

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: On market transfer between indirect and direct 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 (4,671,083)*
Chase GA Group Nominees Limited (11,332,960)*
Chase Nominees Limited (917,899)*
CUIM Nominee Limited (3,353,137)*

*denotes direct interest

Chase Nominees Limited (1,124,241)
CUIM Nominee Limited (176,692)
Vidacos Nominees Limited (2,288,391)

5. Date of the transaction and date on which the threshold is crossed or
reached (v): 29 January 2008

6. Date on which issuer notified: 30 January 2008

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

13% to 11% Change at Combined 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)

             27,908,903         27,908,903

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

              20,275,079       20,275,079  3,589,324        9.52%   1.69%

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                      
                                                                               
23,864,403                             11.21%                                  

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 212,968,819

14. Contact name: Neil Whittaker

15. Contact telephone number: 01603 684 420