Appointment of Senior Independent Non-Executive Director

THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION

FOR IMMEDIATE RELEASE

13 October 2026

LSE: PDL

Petra Diamonds Limited

(the "Company")

Appointment of Senior Independent Non-Executive Director

The Board is pleased to announce the appointment of Piers Marsden, as the new Senior Independent Non-Executive Director of the Company with immediate effect.

Piers is a Chartered Accountant with over 20 years' experience in turnarounds and capital restructurings, predominantly in the mining and resources sectors. He has served as an independent director, a shareholder-nominated director and as Chief Restructuring Officer in various companies, including listed companies on JSE. He has worked in various Executive roles in the past, while he currently serves as a Founding Director of Matuson & Associates, which is a boutique consulting firm specialising in restructuring & turnarounds. 

The Board welcomes Piers Marsden and looks forward to his contribution in helping the Board navigate this challenging period for the Company.

Change to Board Sub-Committees

As a result of Lerato Molebatsi taking over as Interim Chair, and the appointment of Piers Marsden, the following changes have also been implemented to the Board's sub-committees:

• Senior Independent Non-Executive Director: with immediate effect, Piers Marsden takes over this role from Lerato Molebatsi. Piers also joins all the Board sub-committees as a member.
• Remuneration and Nomination Committee: the two committees will now be consolidated into one with Lerato Molebatsi being appointed as Chair, immediately.

The person responsible for releasing this announcement is Tumi Dakada, Acting General Counsel and Company Secretary of the Company.

FURTHER INFORMATION

For further information, please contact:

Investor Relations, London

       Telephone: [phone]

Julia Stone and Kelsey Traynor   [e-mail]

About Petra Diamonds Limited

Petra Diamonds is a leading independent diamond mining group and a supplier of gem quality rough diamonds to the international market. The Company's portfolio incorporates interests in two underground mines in South Africa (Cullinan Mine and Finsch). The Group's principal operating asset is Cullinan Mine. Finsch entered business rescue on 29 May 2026.

Petra strives to conduct all operations according to the highest ethical standards and only operates in countries which are members of the Kimberley Process. The Company aims to generate tangible value for each of its stakeholders, thereby contributing to the socio-economic development of its host countries and supporting long-term sustainable operations to the benefit of its employees, partners and communities.

Petra is quoted on the Main Market of the London Stock Exchange under the ticker 'PDL'. The Company's loan notes, due in 2030, are listed on EuroNext Dublin (Irish Stock Exchange). For more information, visit www.petradiamonds.com.

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