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)
11) DE BEERS UK LIMITED (DBUK)
12) DTEK INTERNATIONAL LIMITED
14) ELEMENT TECHNICAL SERVICES
15) ELLIOTT INVESTMENT MANAGEMENT L.P.
16) ENERGOS INFRASTRUCTURE MANAGEMENT LLC
18) EREBOR
19) FELIX GOLD ALASKA TREASURE CREEK INC. USA
20) GRUPO CARRINHO