Holding in Company

    Financial Services Authority



TR-1i:               notification of major interests in shares


                                                                                        
1. Identity of the issuer or the underlying issuer of existing          Cambridge Mineral Resources plc
shares to which voting rights are attachedii:                                            
                                                                                        
                                                                                        
                                                                                        
2. Reason for the notification     (please tick the appropriate box or boxes)                      
                                                                                                   
An acquisition or disposal of voting rights                                                           X                
                                                                                                       
                                                                                                       
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                                                      X 
                                                                                                       
                                                                                                       
Other (please specify):                                                                                
                                                                                                       
                                                                                        
3. Full name of person(s) subject to the notification obligation                 Barclays PLC
   iii:                                                                                       

                                                                                        
4. Full name of shareholder(s) (if different from 3.)iv:                    Barclays Stockbrokers Ltd
                                                                                        
                                                                                        
5. Date of the transaction (and date on which the threshold is                 16 September 2008
crossed or reached if different)v:                                                      

                                                                                        
6. Date on which issuer notified:                                              17 September 2008
                                                                                        
                                                                                        
7. Threshold(s) that is/are crossed or reached:                                     9% to 8%
                                                                                        
8. Notified details:                                                
                                                                    



A: Voting rights attached to shares

Class/type    of  Situation   previous   to  Resulting situation after the triggering transaction vii
shares            the            Triggering  
                  transaction    vi
   if   possible  
using  the  ISIN
CODE

                 Number of    Number of     Number  of   Number of voting rights ix      % of voting rights
                 Shares       Voting        shares                                    
                              Rights viii   
                               
                                                         Direct  x     Indirect xi    Direct        Indirect
                                                                                                     
                                                                                                     
                                                                                                     
                                                                                                     
                                                                                                     
GB0001826303      26,841,726   26,841,726    27,744,256   0             27,744,256        0.00       8.48
                                                                                                     




B: Financial Instruments

Resulting situation after the triggering transaction xii

Type of financial     Expiration      Exercise/ Conversion       Number of voting rights      % of voting
instrument            date xiii       Period/ Date xiv           that may be acquired if      rights
                                                                 the instrument is            
                                                                 exercised/ converted.
                                                                 
                                                                                              
                                                                                              


Total (A+B)

Number of voting rights                               % of voting rights
                                                      
                                                      
                                                      
         27,744,256                                                 8.48
                                                                                 


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

Barclays Stockbrokers Ltd


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:                                  Geoff Smith
                                              
                                              
15. Contact telephone number:                      020 7116 2913
                                              


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Cambridge Mineral Resources Plc