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Sibanye Stillwater Limited

Incorporated in the Republic of South Africa

Registration number 2014/243852/06

Share codes: SSW (JSE) and SBSW (NYSE)

ISIN – ZAE000259701

Issuer code: SSW

(“Sibanye

-Stillwater”,”the Company” and/or “the Group”)

Registered Address:

Constantia Office Park

Bridgeview House • Building 11 • Ground Floor

Cnr 14th Avenue & Hendrik Potgieter Road

Exhibit 99.1

Weltevreden Park • 1709

Postal Address:

Private Bag X5 • Westonaria • 1780

Tel +27 11 278 9600 • Fax +27 11 278 9863

Website: www.sibanyestillwater.com

MARKET RELEASE

Dealings in securities

Johannesburg, 6 September 2021. Sibanye-Stillwater (Tickers JSE: SSW and NYSE: SBSW) in compliance
with paragraphs 3.63 to 3.74 of the JSE Limited Listings Requirements, discloses the following:

Name

E Dorward-King

Position

Independent Non-Executive Director

Company

Sibanye Stillwater Limited

Nature of interest

Direct and Beneficial

Nature of transaction

On market purchase of ADRs

Transaction Date

31 August 2021

Number of Shares

1,300

Class of Security

ADR

Market Price per share

US$16.248

Total Value

US$21,122.40

In terms of paragraph 3.66 of the Listings Requirements, the necessary clearance to deal in the above
securities has been obtained.

Investor relations contact:

Email:

ir@sibanyestillwater.com

James Wellsted
Head of Investor Relations
Tel: +27 (0) 83 453 4014
Website: www.sibanyestillwater.com

Sponsor: J.P. Morgan Equities South Africa Proprietary Limited