6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6­K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a­16 OR 15d­16 UNDER THE

SECURITIES EXCHANGE ACT OF 1934

For February 21, 2025

Harmony Gold Mining Company Limited

Randfontein Office Park

Corner Main Reef Road and Ward Avenue Randfontein, 1759

South Africa

(Address of principal executive offices)

*-­

(Indicate by check mark whether the registrant files or will file annual reports under cover of

Form 20­ F or Form 40­F.)

Form 20F ☒ Form 40F ☐

(Indicate by check mark whether the registrant by furnishing the information contained in this form is also thereby furnishing the information to the Commission pursuant to Rule 12g3­2(b) under the Securities Exchange Act of 1934.)

Yes ☐ No ☒

Harmony Gold Mining Company Limited

Registration number 1950/038232/06

Incorporated in the Republic of South Africa

ISIN: ZAE000015228

JSE share code: HAR

(“Harmony”)

Harmony deeply saddened to report a loss-of-life incident at Mponeng mine

Johannesburg, Friday, 21 February 2025. Harmony Gold Mining Company Limited (“Harmony” and/or “the Company”) deeply regrets to report a loss of life incident as a result of a fall of ground following a seismic event at Mponeng mine, near Carletonville, yesterday morning.

All relevant authorities and stakeholders have been informed and an investigation, led by the Department of Mineral and Petroleum Resources (DMPR), has begun.

Beyers Nel, the Group Chief Executive Officer of Harmony says: “The safety and wellbeing of our employees is, and will always be, our number one priority. This tragic loss of life is devastating. We extend our heartfelt condolences to his family and friends. We are committed to zero harm, and yet recent events remind us that we must do more with urgency, with unity, and with unwavering resolve.”

Harmony held a Visible Felt Leadership day on Wednesday, to reinforce the emphasis on safety and to reiterate to Harmonites that they have the right to withdraw from any area where they may feel unsafe.

Ends.

For more details contact:

Chipo Morapedi-Mrara

Head of Communications

+27 (0)60 571 0797

Or

Jared Coetzer

Head of Investor Relations

+27 (0)82 746 4120

Or

Mashego Mashego

Executive Director

+27 (0)82 767 1072

21 February 2025

Sponsor:

J.P. Morgan Equities South Africa Proprietary Limited.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on

its behalf by the undersigned, thereunto duly authorized.