600 Massachusetts Ave, NW, Suite 400, Washington, DC, 20001, 
3) AMERICAN PUBLIC POWER ASSOCIATION
4) ANGLO AMERICAN SERVICES (UK) LIMITED
7) BOSTON METAL
8) CF&I STEEL L.P. (D/B/A ROCKY MOUNTAIN STEEL MILLS)
10) DE BEERS UK LIMITED (DBUK)
11) DTEK INTERNATIONAL LIMITED
13) ELLIOTT INVESTMENT MANAGEMENT L.P.
14) ENERGOS INFRASTRUCTURE MANAGEMENT LLC
16) EREBOR
17) FELIX GOLD ALASKA TREASURE CREEK INC. USA
18) GABRIEL COUTO
19) GRUPO CARRINHO