Human rights

Background information

The below items refer to incidents regarding Williamson mine in Tanzania. In May 2025 the Group sold its entire interest in the mine.

In May 2020, Leigh Day notified the Boards of Petra Diamonds Limited (“PDL”) and Williamson Diamonds Limited (“WDL”) that it had issued claim forms in the High Court of England and Wales on behalf of 32 anonymous individuals in relation to alleged breaches of human rights, personal injuries and deaths suffered at and surrounding the Mine, arising from the security operations. Additionally, in November 2020 RAID published a report outlining similar allegations, during the same period. Leigh Day subsequently expanded the number of anonymous claimants to 72 while RAID expanded the scope of their own allegations.

WDL and Petra have taken the human rights allegations mentioned above extremely seriously. They have sought to gain a full understanding of the allegations through an independent investigation, with the aim of supporting the provision of balanced and fair remedy, in the interest of all parties, and to put in place preventative measures. Petra formed an independent Board Sub-Committee comprised entirely of independent Non-executive Directors to oversee the matters and undertake an investigation into the allegations. The Sub-Committee was supported in its investigation by the specialist external investigator Control Risks, in conjunction with lawyers Freshfields Bruckhaus Deringer LLP.

On 12 May 2021 Petra announced that it had reached a settlement, on a no admission of liability basis, in relation to claims brought in London by Leigh Day, on behalf of the anonymous claimants, in relation to alleged breaches of human rights, associated with third-party security operations, within the SML.

On 14 May 2025 Petra announced the sale of its entire shareholding in the entity that holds its interest in Williamson Diamonds Limited (WDL), together with all shareholder loans owed to Petra, to Pink Diamonds Investments Limited (Pink Diamonds) for a headline consideration of up to US$16 million.

This transaction was completed following the receipt of approval from the Tanzanian Fair Competition Commission. This transaction represented an important milestone, bringing the mine back under consolidated Tanzanian ownership.

The Company has agreed to fund the remedies determined by the IGM and, notwithstanding the completion of the sale by the Company to Pink Diamonds on 14 May 2025 of its stake in WDL, which owns the Williamson Mine, the Company will continue to fund the remedies determined by the IGM as well as various restorative justice projects (RJPs) that provide sustainable benefits to the communities located close to the mine. Under the terms of the share purchase agreement between the Company and Pink Diamonds, Pink Diamonds has provided

Please see below Petra’s public disclosures regarding the allegations detailed above.

Please see below the responses Petra has sent to RAID regarding the allegations.

Additional Documents

Sustainability
Petra Diamonds
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