https://www.mining.com/de-beers-expands-pilot-scheme-sierra-leone-sell-ethically-sourced-diamonds/
De Beers expands pilot scheme in Sierra Leone to sell ethically sourced diamonds - MINING.COM
Apr 24, 2019 - Decision was made to give more artisanal and small-scale miners (ASM) the opportunity to benefit from the program, which helps them trace route of their...