犯罪、法律与司法科学与技术80–90% of gold purchased and exported is now refined in Ghana– Sammy Gyamfi - MyJoyOnlineMyJoyOnline·1 个来源·阅读 1 分钟·3周前·归档于2026年10月13日GhanaGhana Gold BoardGhana Gold Board (GoldBod)Sammy GyamfiSilverdomestic refineriesforeign exchange generationgold tradinglegal and other civil recovery measureslocal refining报告问题