Earlier, deputy minister of Minerals, Prof Shukrani Manya said Cyanide was the most preferred and recommended chemical to replace mercury in gold refinery that despites of causing health effects to people, plants and environment, it gives less than 30 percent of gold recovery therefore give small scale miners low profit.
read more... https://africanminingbrief.com/tanzania-government-plans-bulk-procurement-of-mercury/
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