Holding(s) in Company

TR-1: Notifications of Major Interests in Shares                                 
                                                                                 
1. Identity of the issuer or the underlying issuer of existing shares to which   
voting rights are attached:                                                      
                                                                                 
Carnival plc                                                                     
                                                                                 
2. Reason for notification                                         [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      Aviva plc & its subsidiaries           
notification                                                                     
obligation:                                                                      
                                                                                 
4. Full name of shareholder(s) (if        Registered Holder:                     
different from 3):                                                               
                                          BNY Norwich Union Nominees             
                                                                                 
                                          Limited 1,664,444*                     
                                                                                 
                                          BT Globenet Nominees Limited 2,068*    
                                                                                 
                                          Chase GA Group Nominees                
                                                                                 
                                          Limited 3,414,480*                     
                                                                                 
                                          Chase Nominees Limited 290,632*        
                                                                                 
                                          CUIM Nominee Limited 1,162,339*        
                                                                                 
                                          Vidacos Nominees Limited 3,390*        
                                                                                 
                                          * denotes direct interest              
                                                                                 
                                          R C Greig Nominees Limited 1,750       
                                                                                 
                                          Aviva SpA 3,523                        
                                                                                 
                                          BNP Paribas - London 27,499            
                                                                                 
                                          Chase Nominees Limited 753,339         
                                                                                 
                                          State Street Nominees Limited 312,924  
                                                                                 
                                          Vidacos Nominees Limited 74,597        
                                                                                 
5. Date of transaction (and date on which 24 April 2008                          
the                                                                              
threshold is crossed or reached if                                               
different):                                                                      
                                                                                 
6. Date on which issuer notified:         25 April 2008                          
                                                                                 
7. Threshold(s) that is/are crossed or    5% to 4% Change at Combined Interest   
reached:                                  level                                  
                                                                                 
8: Notified Details                                                              
                                                                                 
A: Voting rights attached to shares                                              
                                                                                 
Class/type of  Situation previous            Resulting situation after           
shares                 to                    the triggering transaction          
                 the triggering                                                  
                  transaction                                                    
                                                                                 
If possible   Number of Number of  Number of       Number of       Percentage of 
use            shares     voting     shares      voting rights     voting rights 
ISIN code                 rights                                                 
                                                                                 
                                     Direct  Direct   Indirect  Direct Indirect
                                                                                 
Ordinary      8,140,929  8,140,929  6,537,353 6,537,353 1,173,632 4.06%   0.73%  
Shares                                                                           
GB0031215220                                                                     
                                                                                 
B: Financial Instruments                                                         
                                                                                 
Resulting situation after the triggering transaction                             
                                                                                 
                                      N/A                                        
                                                                                 
Total (A+B)                                                                      
                                                                                 
Number of voting rights                 Percentage of voting rights              
                                                                                 
7,710,985                               4.79%                                    
                                                                                 
9. Chain of controlled undertakings through which the voting rights and /or the  
financial instruments are effectively held, if applicable:                       
                                                                                 
                                 See Section 4                                   
                                                                                 
Proxy Voting:                                                                    
                                                                                 
10. Name of proxy holder:         See Section 4                                  
                                                                                 
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:       Figures are based on a total number of voting  
                                  rights of 160,840,539.                         
                                                                                 
14 Contact name:                  Neil Whittaker                                 
                                                                                 
15. Contact telephone name:       01603 684420