JSE-listed mining companies clear the dust hanging over many African mine dumps .Lonmin, Glencore, Kumba, BHP Billiton, Anglo American Platinum and Anglo American have published details of their managed tailings storage facilities that is where they. This comes as ethical investors with $10.3 trillion in assets under management, sent a letter to 683 listed extractives companies in April. They requested disclosure on every individual tailing facility under these miners’ control, asking for the information to be made public within 45 days. Adam Matthews, Director of Ethics and Engagement at the Church of England Pensions Board joins CNBC Africa more.