Nearly 7,000 plaintiffs from South Africa and Lesotho have so far signed up to a class action suit against four South African gold companies, claiming they were responsible for the workers having contracted deadly silicosis. The principal targets of the suit are AngloGold Ashanti (listed in London), Gold Fields and Harmony Gold, along with DRD Gold.
See http://www.minesandcommunities.org/article.php?a=11581&l=1.
See also http://www.iol.co.za/business/business-news/news-in-brief-1.1262123?showComments=true.