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$Refractory metals / Transition metals / Tantalum / Mining in the Democratic Republic of the Congo / Niobium / Conflict minerals / Minor metals / Minor Metals Trade Association / Pentoxide / Chemistry / Matter / Chemical elements$	Conflict Minerals from the Democratic Republic of the Congo— Global Tantalum Processing Plants, a Critical Part of the Tantalum Supply Chain The U.S. Geological Survey (USGS) analyzes mineral and metal supply chains to Add to Reading List Document Date: 2014-12-30 12:24:59 Open Document File Size: 3,43 MB Share Result on Facebook

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Conflict Minerals from the Democratic Republic of the Congo— Global Tantalum Processing Plants, a Critical Part of the Tantalum Supply Chain The U.S. Geological Survey (USGS) analyzes mineral and metal supply chains toAdd to Reading List