Since the fall of apartheid, the ANC's foundation of power has revolved around promoting social and economic equality through Black Economic Empowerment initiatives such as subsidizing electricity, water and housing for those who were excluded from the formal economy for much of the 20th century. Many of these disenfranchised people work in the mining sector. Though South Africa is the world's largest producer of platinum-group metals, the largest exporter of manganese and chromium, the third-largest exporter of iron ore, and a major producer of diamonds, gold and coal, many feel that the common citizen receives little benefit from its mining industry. As a result, the ANC has made a point of seeking reform in the country's mining sector to bring accountability to companies that, as exporters, have always been externally minded.