HAR - Harmony Gold Mining Company Limited - Close-out of Australian Hedge Book  
HARMONY GOLD MINING COMPANY LIMITED                                             
Incorporated in 1950                                                            
Registration number 1950/038232/06                                              
Share code: HAR                                                                 
NASDAQ, NYSE: HMY                                                               
ISIN: ZAE000015228                                                              
CLOSE-OUT OF AUSTRALIAN HEDGE BOOK                                              
Johannesburg, 18 May 2007. Harmony announced today that it has closed out the   
remainder of the Australian hedge book inherited with the acquisition of the    
Hill 50 mine in Western Australia. 230 000 ounces were closed out at an average 
spot rate of A$ 809oz, for a total cost of A $75.8 million (R 436 million).     
These positions had a negative marked-to-market of A$ 78.6 million (R 460.7     
million) for the quarter ending 31 March 2007 at an average forward price of A$ 
517.78 per ounce.                                                               
Issued by Harmony Gold Mining Company Limited                                   
18 May 2007                                                                     
For more details contact:                                                       
Amelia Soares                                                                   
General Manager, Investor Relations                                             
on +27(0)82 654 9241                                                            
or                                                                              
Lizelle du Toit                                                                 
Investor Relations Officer                                                      
on +27(0)82 465 1244                                                            
Date: 18/05/2007 15:09:10 Supplied by www.sharenet.co.za                     
Produced by the JSE SENS Department                             .