Most of the waste that Glencore generates is broken rock, tailings, slag and other mineral residues from the processing of ore and ore concentrates. Our assets have management systems and dedicated facilities to dispose of mineral residues while preventing environmental contamination. Through our group-wide dam integrity and safety assurance program, we require our TSFs to be audited by Klohn Crippen Berger  (KCB), one of the world’s leading experts on integrity and safety of tailing storage facilities...Dam failure is the greatest risk for our TSFs, as disclosed in our Annual Report. Our dam safety assurance programme assesses our tailings and water dams in line with international leading practice...