Freedom United and Eritrea Focus have launched a campaign to urge Nevsun's biggest shareholders to divest from the company due to alleged use of forced labour in its Eritrean mines. BlackRock Fund Managers have divested from Nevsun while M & G investments has said it will continue to engage with the management of Nevsun to ensure it continues to improve human rights and employment standards. Nevsun denies  use of forced labour in its mines.