REG-Petra Diamonds: Tailings Storage Facility wall breach at Williamson

Petra DiamondsAnnouncement

07/11/2022 10:45

FOR IMMEDIATE RELEASE

 7 November 2022   LSE: PDL 

Petra Diamonds Limited
(“Petra”) or the (“Company”)

Tailings Storage Facility wall breach at Williamson in Tanzania

Petra announces that earlier today the eastern wall of the Tailings Storage
Facility (TSF) at the Williamson mine was breached, resulting in flooding away
from the pit which has extended into certain areas outside of the mine lease
area.

Williamson’s management are at the affected areas together with the Regional
and District Commissioners. Government and Mine emergency response teams have
been mobilised. To date, no injuries or fatalities have been confirmed and the
teams on the ground are engaging with community members to keep them away from
the affected area.

A CEO-led team is being sent to the site to assist the mine team and to
provide any support required. Williamson’s management is working closely
with local and regional authorities and Petra will provide further updates as
information becomes available.  Mine production has been suspended pending an
investigation into the incident.

Petra currently has a 75% shareholding in Williamson Diamonds Limited, with
the Government of Tanzania owns the remaining 25%.

This announcement includes inside information as defined in Article 7 of the
UK Market Abuse Regulation No. 596/2014 and is being released on behalf of
Petra by the Company Secretary.

For further information, please contact:

Petra Diamonds, London                 Telephone: +44 20 7494
8203

Patrick Pittaway                     
            investorrelations@petradiamonds.com         

Julia Stone

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 three underground producing mines in South
Africa (Finsch, Cullinan Mine and Koffiefontein) and one open pit mine in
Tanzania (Williamson).

Petra's strategy is to focus on value rather than volume production by
optimising recoveries from its high-quality asset base in order to maximise
their efficiency and profitability. The Group has a significant resource base
of 226.6 million carats, which supports the potential for long-life
operations.

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 with a premium listing on the Main Market of the London Stock
Exchange under the ticker 'PDL'. The Company’s notes due in 2026 are listed
on the Irish Stock Exchange and admitted to trading on the Global Exchange
Market. For more information, visit www.petradiamonds.com.



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