<PAGE>
NOTES:

1. A certificated or "own name" dematerialised shareholder may insert the name
of a proxy or the names of two alternatives proxies of the certificated or "own
name" dematerialised shareholder's choice in the space/s provided, with or
without deleting "the chairman of the general meeting"; but any such deletion
must be initialed by the certificated or "own name" dematerialised shareholder.
The person whose name appears first on the form of proxy and who is present at
the general meeting will be entitled to act as proxy to the exclusion of those
whose names follow.

2. A certificated or "own name" dematerialised shareholder's instructions to the
proxy must be indicated by the insertion of the relevant number of votes
exercisable by that shareholder in the appropriate box provided. Failure to
comply with the above will be deemed to authorise the proxy to vote or to
abstain from voting at the general meeting as he/she deems fit in respect of all
the certificated shareholders' votes exercisable thereat. A certificated or "own
name" dematerialised shareholder or his proxy is not obligated to use all the
votes exercisable by the shareholder or by his proxy, but the total of the votes
cast and in respect of which abstention is recorded may not exceed the total of
votes exercisable by the certificated or "own name" dematerialised shareholder
or by his/her proxy.

3. This duly completed form of proxy must be received by the Company's transfer
secretaries. Ultra Registrar (Proprietary) Limited, 11 Diagonal Street,
Johannesburg, 2001 (PO Box 4844, Johannesburg, 2000) or Capita Registrars, The
Registry, 34 Beckenham Road, Beckenham, Kent BR3 4TU, England, by no later than
48 hours before the time fixed for the general meeting.

4. The completion and lodging of this form of proxy will not preclude the
relevant certificated or "own name" dematerialised shareholder from attending
the general meeting and speaking and voting in person thereat to the exclusion
of any proxy appointed in terms hereof.

5. Documentary evidence establishing the authority of a person signing this form
of proxy in a representative or other legal capacity must be attached to this
form or proxy unless previously recorded by the Company's transfer secretaries
or waived by the chairman of the general meeting.

6. Every person present and entitled to vote at the general annual meeting as a
registered member or as a representative of a body corporate shall on a show of
hands have one vote only, irrespective of the number of shares such person holds
or represents, but in the event of a poll, such person or representative, will
have one vote per share.

7. Any alteration or correction made to this form of proxy must be initialled by
the signatory/ies.

8. Dematerialised shareholders other those with "own name" registration who wish
to attend the general meeting must request their Central Securities Depositary
Participants ("CSDP") or broker to provide them with a Letter of Representation
or they must instruct their CSDP or broker to vote by proxy on their behalf in
terms of the agreement entered into between the shareholders and their CSDP or
broker.

                               (HARMONY(TM) LOGO)

HARMONY GOLD MINING COMPANY LIMITED
Incorporated in the Republic of South Africa
Registration Number 1950/038232/06
("Harmony" or "Company")

JSE Share code: HAR   NYSE Share Code: HMY   ISIN Code : ZAE 000015228

DIRECTORS: P T Motsepe (Chairman), Z B Swanepoel (Chief Executive), F Abbott, F
Dippenaar, V N Fakude, T S A Grobicki, W M Gule, Dr. D.S. Lushaba, R. P. Menell,
M Motloba, Dr M Z Nkosi, M F Fleming, V N Qangule, Lord Renwick of Clifton
KCMG*, CML Savage

SECRETARY: MP van der Walt

*    British

Please refer to the Annual Report for details of the Company's directors and
management, its major shareholders, material changes, litigation, directors'
interests in securities, share capital and the Directors' Responsibility
Statement.

NOTICE TO SHAREHOLDERS

Notice is hereby given that the annual general meeting of Harmony will be held
on Friday, 12 November 2004 at 10:00 at Harmony's Corporate Offices,
Randfontein Office Park, corner Main Reef Road and Ward Avenue, Randfontein for
the following purposes:

     1. to receive and adopt the audited financial statements of the Company for
     the year ended 30 June 2004, including the reports of the directors and
     auditors.

     2. to fix the remuneration of the directors. In addition to the standard
     director's fee, shareholders will be requested to agree to an additional
     R4000 per day to be paid to a non-executive director who performs any
     additional duties over and above his or her normal duties as non-executive
     director.

     3. to re-elect a number of directors by way of a single resolution.

     4. to re-elect Dr M Z Nkosi, Mr R P Menell, Mr M Motloba and Ms N V
     Qangule, who have been appointed by the board as directors in terms of the
     Articles of Association of the Company (a short CV of each director appears
     in the Annual Report to which this notice is attached ("Annual Report")
     under the heading "Directorate");

     5. to re-elect Mr F Dippenaar, Ms V N Fakude and Dr S Lushaba, who retire
     by rotation and have made themselves available for re-election, as
     directors in terms of the Articles of Association of the Company (a short
     CV of each director appears in the Annual Report under the heading
     "Directorate") and

     6. to consider and if deemed fit to pass with or without modification the
     following ordinary and special resolutions, the reasons for and the effects
     of the special resolutions being stated below.

SPECIAL RESOLUTION NUMBER 1

"Resolved that the authorised ordinary share capital of the Company be increased
from Illegible cents each to R225 000 000 divided into 450 000 000 ordinary
shares at 50 cents each by the creation of 100 000 000 new ordinary shares of 50
cents each ranking pari passu in all respects with the existing ordinary shares
in the authorised share capital of the Company."

     The reason for this special resolution number 1 is to ensure that the
Company has sufficient authorised but unissued shares available for the purpose
of future opportunities. The effect of this special resolution number 1 is to
create 1 00 000 000 new ordinary shares and thereby increase the authorised
ordinary share capital of the Company from R175 000 000 to R225 000 000.

SPECIAL RESOLUTION NUMBER 2

"Resolved that the Company may, as a general approval in terms section Illegible
the Companies Act, 1973 Illegible 1973), as amended, acquire, from time to time,
such number of its securities at such price or prices and on such other terms
and conditions as the directors may from time to time determine, but subject to
the requirements from time to time, of any stock exchange upon which the
Company's securities may be quoted or listed and to the following requirements
of the JSE Securities Exchange South Africa ("JSE").

     (A) the repurchase of securities shall be effected through the order book
     operated by the JSE trading system and done without any prior understanding
     or arrangement between the Company and the counter party;

     (B) the repurchase of securities must be authorised by the Company's
     Articles of Association;

     (C) the authority shall be valid only until the next annual general meeting
     of the Company or for 15 months from the date on which this special
     resolution is passed, whichever period is shorter;

     (D) repurchases may not be made at a price more than 10% above the weighted
     average of the market value for the securities for the five business days
     immediately preceding the date on which the transaction is effected;

     (E) at any point in time, the Company may only appoint one agent to effect
     any repurchase(s) on the Company's behalf;

     (F) the Company may only undertake a repurchase of the securities if, after
     such repurchase, it still complies with the Listings Requirements of the
     JSE concerning shareholder spread requirements; and

     (G) the Company or its subsidiaries may not repurchase the Company's shares
     during a prohibited period, as defined in the Listings Requirements of the
     JSE."

          The reason for and effect of special resolution number 2 is to
generally approve, in terms of section 85(2) of the Companies Act, 1973 (Act 61
of 1973), as amended (Act"), the acquisition by the Company of securities issued
by it, subject to the

Listings Requirements of the JSE Securities Exchange South Africa ("JSE"). The
directors intend to utilise this authority at such time or times in respect of
such number of securities, at such price and or such terms as they may consider
appropriate in the circumstances from time to time, provided that any repurchase
of securities should not, in the aggregate, in this financial year exceed 20% of
the Company's issued securities of the class concerned. Accordingly, the method
by which the Company intends to acquire its securities, the maximum number of
securities which will be acquired and the price(s) and date(s) at which the
acquisition(s) is (are) to take place are not presently known. In considering
whether or not to act in terms of this general authority the directors will
ensure for a period of 12 months after the date of the notice of general meeting
that:

     (A) the Company and its subsidiaries ("Group") will be able, in the
     ordinary course of business, to pay its debts;

     (B) the consolidated assets of the Company and the Group will be in excess
     of the consolidated liabilities of the Company and the Group. For this
     purpose, the assets and liabilities will be recognised and measured in
     accordance with the accounting policies used in the latest audited annual
     group financial statements;

     (C) the Company and the Group will have adequate capital and reserves; and

     (D) the working capital of the Company and the Group will be adequate for
     ordinary business purposes.

     When the Company has cumulatively repurchased 3% of the initial number of
the relevant class of securities and for each 3% in aggregate of the initial
number of that class acquired thereafter, the Company will publish an
announcement giving details thereof in accordance with Rule 11.27 of the
Listings Requirements of the JSE.

     The Company undertakes that it will not enter the market to repurchase the
Company's securities in terms of this general authority until such time as the
Company's sponsor has provided written confirmation to the JSE regarding the
adequacy of the Company's working capital in accordance with Schedule 25 of the
Listings Requirements of the JSE.
<PAGE>
ORDINARY RESOLUTION NUMBER 1

"Resolved that the directors of the Company be and are hereby authorised to
allot and issue, after providing for the requirements of the Harmony (1994)
Share Option Scheme, the harmony (2001) Share Option Scheme and the Harmony
(2003) Share Option Scheme, all or any of the remaining unissued securities in
the capital of the Company at such time or times to such person or persons or
bodies corporate upon such terms and conditions as the directors may from time
to time at their sole discretion determine, subject to the provisions of the
Companies Act, 1973 (Act 6) if 1973), as amended, and the Listings Requirements
of the JSE Securities Exchange of South Africa."

     This ordinary resolution is required in order to comply with the provisions
of section 221 of the Act.

ORDINARY RESOLUTION NUMBER 2

"Resolved that the directors of the Company be and are hereby authorised to
allot and issue equity securities (including the grant or issue of options or
securities that are convertible into an existing class of equity securities) for
cash (or the extinction of a liability, obligation or commitment, restraint(s),
or settlement or expenses) on such terms and conditions as the directors may
from time to time at their sole discretion deem fit, as and when suitable
opportunities arise therefor, but subject to the following requirements of the
JSE Securities Exchange South Africa ("JSE"):

     (A) the equity securities which are the subject of the issue for cash must
     be of a class already in issue, or where this is not the case, must be
     limited to such securities or rights that are convertible into a class
     already in issue;

     (B) the equity securities must be issued to public shareholders, as defined
     in the Listings Requirements of the JSE and not to related parties;

     (C) the equity securities which are the subject of general issues for cash;

          (I) in the aggregate in any one financial year may not exceed 15% of
          the relevant number of equity securities in issue of that class (for
          purposes of determining the securities comprising the 15% number in
          any one year, account must be taken of the dilution effect, in the
          year of issue of options/convertible securities, by including the
          number of any equity securities which may be issued in future arising
          out of the issue of such options/convertible securities);

          (II) of a particular class, will be aggregated with any securities
          that are compulsory convertible into securities of that class, and, in
          the case of the issue of compulsory convertible securities, aggregated
          with the securities of that class into which they are compulsory
          convertible;

          (III) as regards the number of securities which may be issued (the 15%
          number), shall be based on the number of securities of that class in
          issue added to those that may be issued in future (arising from the
          conversion of options/convertible securities), at the date of such
          application:

               (1) less any securities of the class issued, or to be in future
               arising from options/convertible securities issued, during the
               current year;

               (2) plus any securities of that class to be issued pursuant to:

                    (aa) a rights issue which has been announced is irrevocable
                    and is fully underwritten; or

                    (bb) an acquisition which has had final terms announced may
                    be included, as though they were securities in issue as at
                    the date of application;

     (D) the maximum discount at which equity securities may be issued is 10% of
     the weighted average traded price of such securities measured over the 30
     business days prior to the date that the price of the issue is determined
     or agreed by the directors of the Company. The JSE will be consulted for a
     ruling if the Company's securities have not traded in such 30 business day
     period."

          The approval of a 75% majority of the votes cast by shareholders
present or represented by proxy at the annual general meeting is required for
this resolution to be effective. This resolution, if approved by shareholders,
shall be valid util the Company's next annual general meeting or for 15 months
from the date of the resolution, whichever is the shorter.

          After the Company has issued equity securities in terms of this
general authority representing, on a cumulative basis within the current
financial year, 5% or more of the number of equity securities in issue prior to
that issue, the Company will publish an announcement containing full details of
the issue in accordance with Rule 11.22 of the Listings Requirements of the JSE.

VOTING AND PROXIES

Each shareholder of Harmony who, being an individual, is present in person or by
proxy, or, being a company, is represented at the general meeting, is entitled
to one vote on a show of hands. On a poll, each shareholder present in person or
by proxy or represented shall have one vote for every share held by such
shareholder. A shareholder entitled to attend and vote at the meeting may
appoint one or more proxies to attend, speak and vote in his stead. A proxy need
not be a shareholder of Harmony.

     Certificated shareholders and own name dematerialised shareholders who are
unable to attend the general meeting, but wish to be represented thereat must
complete and return the attached form of proxy to the transfer secretaries of
Harmony, being Ultra Registrars (Proprietary) Limited or Capita Registrars, to
reach them by no later than 9:00 on 10 November 2004. The completion of a form
of proxy will not preclude a shareholder from attending, speaking and voting at
the general meeting to the exclusion of the proxy so appointed.

     Dematerialised shareholders other than those who have elected "own name"
registration who wish to attend the general meeting must request their Central
Securities Depositary Participant ("CSDP") or broker to provide them with a
letter of representation or must instruct their CSDP or broker to vote by proxy
on their behalf in terms of the agreement entered into between the shareholder
and its CSDP or broker.

By order of the Board


/s/ MP van der Walt
-------------------------------------
Harmony Gold Mining Company Limited
MP van der Walt
Secretary
Virginia

3 September 2004

HARMONY GOLD MINING COMPANY LIMITED                           (HARMONY(TM) LOGO)
Incorporated in the Republic of South Africa
Registration Number 1950/038232/06
("Harmony" or "Company")

JSE Share code: HAR   NYSE Share Code: HMY   ISIN Code: ZAE 000015228

                                   PROXY FORM

For use of certified shareholders of Harmony ("shareholders") at the annual
general meeting of Harmony to be held at 10:00 on Friday, 12 November 2004, at
Harmony's Corporate Office, Randfontein Office Park, corner of Main Reef Road
and Ward Avenue, Randfontein, and any adjournment thereof ("the general
meeting").

I/We ___________________________________________________________________________

________________________________________________________ (NAME IN BLOCK LETTERS)

being the holder/s of _________________ shares in the Company, do hereby appoint

1. __________________________________________________________ or failing him/her

2. __________________________________________________________ or failing him/her

3. the chairman of the general meeting,

as my/our proxy to act for me/us and on my/our behalf at the general meeting,
which will be held for the purpose of considering and, if deemed fit, passing,
with or without modification, the special and ordinary resolutions to be
proposed thereat and at any adjournment thereof, and to vote for or against the
resolutions and/or abstain from voting in respect of the shares registered in
my/our name/s, in accordance with the following instructions (see note 2):

<TABLE>
<CAPTION>
                                              FOR   AGAINST   ABSTAIN
                                              ---   -------   -------
<S>            <C>                            <C>   <C>       <C>
RESOLUTION 1   Adoption of 2003 audited
               Financial Statements

RESOLUTION 2   To fix the remuneration
               of directors

RESOLUTION 3   To elect and re-elect a
               number of directors by
               single resolution

RESOLUTION 4   To re-elect directors in
               terms of the Company's
               Articles of Association:

               R Menell

               M Motloba

               Dr M Z Nkosi

               N V Qangule

RESOLUTION 5   To re-elect directors in
               terms of the Company's
               Articles of Association.

               F Dippenaar

               N Fakude

               Dr S Lushaba

SPECIAL        To increase the
RESOLUTION     authorised share
NUMBER 1       capital

SPECIAL        To grant authority for
RESOLUTION     repurchases of
NUMBER 2       securities

ORDINARY       To place the balance
RESOLUTION     of the unissued securities
NUMBER 1       of the Company under the
               control of the directors

ORDINARY       To authorise the directors
RESOLUTION     to issue securities for cash
NUMBER 2
</TABLE>

Signed at ____________________________________ on ________________________ 2004.

Signature ______________________________________________________________________

Assisted by me (where applicable) ______________________________________________

(Note: A shareholder entitled to attend and vote is entitled to appoint a proxy
to attend, speak and vote in his/ her stead. Such proxy need not also be a
shareholder of the Company).

PLEASE READ THE NOTE ON THE FOLLOWING PAGE UNDER THE HEADING "NOTES".