Do No Harm: Excluding Conflict Minerals from the Supply Chain Global Witness (July 2010)

From Mine to Mobile Phone: The Conflict Minerals Supply Chain The Enough Project

Digging In: Recent Developments on Conflict Minerals The Enough Project (January 2010)

Report by the United Nations Group of Experts on the Democratic Republic of the Congo UN Security Council (November 2009)

Trading Conflict For Development: Utilising the Trade in Minerals from Eastern DR Congo for Development Resource Consulting Service (April 2009)

Comprehensive Approach To Congos Conflict Minerals The Enough Project (April 2009)

Tantalum Revealed: What We Should Know ProactiveInvestors.com

Tantalum A supplement to Mining Journal

February 28, 2007 Commerce Resources Corp. and Tantalum - Ed Hone, Edmond Oklahoma

January 2007 Tantalum U.S. Geological Survey, Mineral Commodity Summaries

January 2007 Columbium (Niobium) U.S. Geological Survey, Mineral Commodity Summaries

Mineral Resources Bulletin 22 Tantalum in Western Australia by J.M. Fetherston

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