The nearby Sikalima stream is another cause of friction between the Chinese-run mine and the cattle-herding community in the area, who rely on it as a source of drinking water.
With the latest technology, says Cho, the bank can measure the profitability of every branch employee and customer, mine its customer database and run sophisticated risk-management and credit-analysis programs.
She said the huge Marange diamond fields of eastern Zimbabwe are operated by military-run syndicates who beat or kill miners who don't mine for them or pay bribes.
China Metallurgical Group, the Chinese state-run company slated to take control of the coal deposits, said it had no idea children were used to mine coal in the area.