SESSION 3: MAPPING THE VALUE CHAIN OF GOLD - CASE OF .Identify the key value drivers and risks encountered in the value chain; . Gold mining activities . Inadequate means to identify Artisanal and Small Scale.value chain in small scale mining,Implementing due diligence in gold supply chains - OECDImplementing due diligence in gold supply chains. Potential role for the World Bank's Communities and Artisanal and Small-Scale Mining Initiative (CASM). 1.