The mine’s indigenous tree nursery represents one of the largest of its kind in which several rare species considered of conservation significance have been successfully propagated for the first time. Amongst them are more than 90 that appear in the IUCN Red List of Threatened Species, as either Critically Endangered, Endangered or Vulnerable. Most notably, two of the successfully propagated Critically Endangered trees are listed amongst the world’s 100 most threatened animal, plant and fungus species. The mine’s arboretum was established to showcase efforts in protecting and conserving indigenous trees of conservation importance. The collection comprises specimens either rescued from disturbed areas of the mine or grown in the nursery.