HARMONY GOLD MINING COMPANY LIMITED - EXTENSION OF THE CLOSING DATE OF THE      
SUBSEQUENT OFFER                                                                
Harmony Gold Mining Company Limited                                             
(Incorporated in the Republic of South Africa)                                  
(Registration number 1950/038232/06)                                            
Share code: HAR     ISIN: ZAE000015228                                          
("Harmony")                                                                     
21 January 2005                                                                 
Extension of the closing date of the subsequent offer                           
Harmony announces that, whilst it is awaiting the outcome of the investigation  
of the proposed merger by the Competition Authorities of South Africa, the      
expected closing date of the subsequent offer is hereby extended to 12.00 p.m.  
(South African time) on Friday, 18 March 2005.                                  
Harmony will notify shareholders by means of a public announcement of any       
amendment to the expected closing date of the subsequent offer set out above.   
Harmony announces that as at 12.00 p.m. (South African time) on 20 January 2005 
valid acceptances of the subsequent offer had been received in respect of a     
total of 44 416 Gold Fields shares. Harmony considers this level of acceptances 
to be entirely consistent with customary market practice where an offer is still
awaiting approval from the competition authorities                              
In addition, as previously announced, Harmony has received an irrevocable       
undertaking from Norilsk to accept the subsequent offer in respect of 98,467,758
Gold Fields shares, representing approximately 20.03% of the entire issued share
capital of Gold Fields. The extension of the closing date of the subsequent     
offer does not impact the Norilsk"s irrevocable undertaking.                    
Accordingly, Harmony now either owns, has received valid acceptances of the     
subsequent offer or has an irrevocable undertaking to accept the subsequent     
offer in respect of a total of 155,077,569 Gold Fields shares representing      
approximately 31.5% of the entire issued share capital of Gold Fields.          
ENDS                                                                            
Issued by (direct line, mobile, email):                                         
Harmony Gold                                                                    
Ferdi Dippenaar          +27 11 684 0140     +27 82 807 3684                    
Corne Bobbert            +27 11 684 0146     +27 83 380 6614                    
South Africa - Beachhead Media & Investor Relations                             
Jennifer Cohen           +27 11 214 2401 +27 82 468 6469    jennifer@bmsa.co.za 
Patrick Lawlor      +27 11 214 2410     +27 82 459 6709     patrick@bmsa.co.za  
United States - Financial Dynamics Business Communications                      
Hollis Rafkin-Sax   +1 212 850 5789     +1 917 509 0255  hrafkin-sax@fd-us.com  
Torie Pennington    +1 212 850 5629     +1 917 838 1369  tpennington@fd-us.com  
United Kingdom - Financial Dynamics Business Communications                     
Nic Bennett         +44 207 269 7115   +44 7979 536 619       nic.bennett@fd.com
Charles Watenphul   +44 207 269 7216   +44 7866 438 013 charles.watenphul@fd.com
US Information Agent - MacKenzie Partners, Inc                                  
Daniel Burch        +1 212 929 5500              proxy@mackenziepartners.com    
Steve Balet         +1 800 322 2885                                             
Unless the context otherwise requires, the definitions contained in the offer   
document or the registration statement sent to Gold Fields shareholders have the
same meaning in this announcement.                                              
In connection with the proposed merger, Harmony has filed with the U.S.         
Securities and Exchange Commission ("SEC"), a registration statement on Form F- 
4, which includes a preliminary prospectus and related exchange offer materials,
to register the Harmony ordinary shares (including Harmony ordinary shares      
represented by Harmony ADSs) to be issued in exchange for the remainder of Gold 
Fields ordinary shares held by Gold Fields shareholders resident in the United  
States and for Gold Fields ADSs held by Gold Fields shareholders wherever       
resident, as well as a Statement on Schedule TO.  Investors and holders of Gold 
Fields securities are strongly advised to read the registration statement and   
the preliminary prospectus, the related exchange offer materials and the final  
prospectus (when available), the Statement on Schedule TO and any other relevant
documents filed with the SEC, as well as any amendments and supplements to those
documents, because they contain important information.  Investors and holders of
Gold Fields securities may obtain free copies of the registration statement, the
preliminary and final prospectus (when available) and related exchange offer    
materials and the Statement on Schedule TO, as well as other relevant documents 
filed or to be filed with the SEC, at the SEC"s web site at www.sec.gov.  The   
preliminary prospectus and other transaction-related documents may be obtained  
for free from MacKenzie Partners, Inc., the information agent for the U.S.      
offer, at the following address: 105 Madison Avenue, New York, New York 10016;  
telephone 1 212 929 5500 (call collect) or 1 800 322 2885 (toll-free call); e-  
mail proxy@mackenziepartners.com.                                               
This communication is for information purposes only.  It shall not constitute an
offer to purchase or exchange or the solicitation of an offer to sell or        
exchange any securities of Gold Fields or an offer to sell or exchange or the   
solicitation of an offer to buy or exchange any securities of Harmony in the US,
nor shall there be any sale or exchange of securities in any jurisdiction in    
which such offer, solicitation or sale or exchange would be unlawful prior to   
the registration or qualification under the laws of such jurisdiction.  The     
distribution of this communication may, in some countries, be restricted by law 
or regulation.  Accordingly, persons who come into possession of this document  
should inform themselves of and observe these restrictions.  The solicitation of
offers to buy Gold Fields ordinary shares (including Gold Fields ordinary shares
represented by Gold Fields ADSs) in the US will only be made pursuant to a      
prospectus and related offer materials that Harmony has sent to holders of Gold 
Fields securities.  The Harmony ordinary shares (including Harmony ordinary     
shares represented by Harmony ADSs) may not be sold, nor may offers to buy be   
accepted, in the US prior to the time the registration statement becomes        
effective.  No offering of securities shall be made in the US except by means of
a prospectus meeting the requirements of Section 10 of the United States        
Securities Act of 1933, as amended.                                             
The directors of Harmony accept responsibility for the information contained in 
this announcement.  To the best of the knowledge and belief of the directors of 
Harmony (who have taken all reasonable care to ensure that such is the case),   
the information contained in this announcement is in accordance with the facts  
and does not omit anything likely to affect the import of such information.     
Date: 21/01/2005 05:12:25 PM Supplied by www.sharenet.co.za                     
Produced by the JSE SENS Department