TR-1: Notifications of Major Interests in Shares

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           N/A        
may result in the                                                              
acquisition of shares already issued to which voting rights                    
are attached                                                                   
                                                                               
An event changing the breakdown of voting rights                    N/A        
                                                                               
Other (please specify):                                             N/A        
                                                                               
3. Full name of person(s) subject to    Prudential plc Group of Companies      
notification                                                                   
obligation:                                                                    
                                                                               
4. Full name of shareholder(s) (if      Registered Holder:                     
different from 3):                                                             
                                        Through Prudential plc:                
                                                                               
                                        JP MORGAN NOMINEES                     
                                                                               
                                        MAGIM HSBC GIS NOM(UK) SALI            
                                                                               
                                        PRUCLT HSBC GIS NOM(UK) PAC AC         
                                                                               
                                        PRUCLT HSBC GIS NOM(UK) PPL AC         
                                                                               
                                        PRUCLT HSBC GIS NOM(UK)EQBF AC         
                                                                               
                                        PRUCLT HSBC GIS NOM(UK)MNBF AC         
                                                                               
                                        PRUCLT HSBC GIS NOM(UK)PENE AC         
                                                                               
                                        PRUDENTIAL HOLBORN PENSIONS LD         
                                                                               
                                        Through The Prudential Assurance       
                                        Company Limited:                       
                                                                               
                                        MAGIM HSBC GIS NOM(UK) SALI            
                                                                               
                                        PRUCLT HSBC GIS NOM(UK) PAC AC         
                                                                               
                                        PRUCLT HSBC GIS NOM(UK) PPL AC         
                                                                               
5. Date of transaction (and date on     21 May 2008                            
which the                                                                      
threshold is crossed or reached if                                             
different):                                                                    
                                                                               
6. Date on which issuer notified:       22 May 2008                            
                                                                               
7. Threshold(s) that is/are crossed or  3.17% (by Prudential Assurance Company 
reached:                                Limited)                               
                                                                               
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      6,561,972  6,561,972 6,760,794 6,760,794          3.17%          
Shares                                                                         
GB0031215220                                                                   
                                                                               
B: Financial Instruments                                                       
                                                                               
Resulting situation after the triggering transaction                           
                                                                               
                                      N/A                                      
                                                                               
Total (A+B)                                                                    
                                                                               
Number of voting rights                Percentage of voting rights             
                                                                               
6,760,794                              3.17%                                   
                                                                               
9. Chain of controlled undertakings through which the voting rights and /or the
financial instruments are effectively held, if applicable:                     
                                                                               
Prudential plc (parent Company)                                                
                                                                               
The Prudential Assurance Company Limited (wholly owned subsidiary of Prudential
plc)                                                                           
                                                                               
Proxy Voting:                                                                  
                                                                               
10. Name of proxy holder:        N/A                                           
                                                                               
11. Number of voting rights      N/A                                           
proxy                                                                          
holder will cease to hold:                                                     
                                                                               
12. Date on which proxy holder   N/A                                           
will                                                                           
cease to hold voting rights:                                                   
                                                                               
13. Additional information:      The Prudential Assurance Company Limited (a   
                                 wholly owned subsidiary of Prudential plc) has
                                 moved to a 3% notifiable interest triggering  
                                 this notification.                            
                                                                               
                                 Percentage holdings are calculated using an   
                                 issued share capital of 213,210,870 ORD       
                                 USD1.66 shares.                               
                                                                               
14 Contact name:                 Arnaldo Perez, Corporate Secretary            
                                                                               
15. Contact telephone name:      305-599-2600