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On the trail of tantalum: tracking a conflict mineral - Mining Technology
20 Apr 2016 "Because of the high cost of mining some of these areas, the DRC and to disclose whether they are receiving tantalum, tungsten, tin, and gold from the trail of tantalum from mine to processing plant, and smelter to factory
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List of smelters / refiners - Konica Minolta
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EX. 1.01 - Conflict Minerals Report 12.31.18 - Qualcomm
31 Dec 2018 refiners (processing facilities) may not participate in the Responsible Minerals minerals (columbite-tantalite (coltan), cassiterite, gold, wolframite or their tantalum, tin and tungsten) that are necessary to the functionality or
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Almalyk Mining and Metallurgical Complex (AMMC). Uzbekistan. Gold This list contains the tantalum, tin, tungsten, and gold smelters/refiners we confirmed are Canada. Gold. JSC Ekaterinburg Non-Ferrous Metal Processing Plant.
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