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Links:
[1] http://www.riotinto.com/whatweproduce/northamerica.asp
[2] http://latimesblogs.latimes.com/lanow/2010/01/workers-locked-out-at-borax-mines-in-boron-in-growing-labor-dispute.html
[3] http://www.borax.com/
[4] http://www.cleveland.com/business/index.ssf/2009/04/alcoa_press.html
[5] http://www.forgemag.com/Articles/Industry_News/BNP_GUID_9-5-2006_A_10000000000000708395
[6] http://li326-157.members.linode.com/system/files/Boron-P1280723.jpg