AEP – American Electric Power
AES
Atco Power
Ameren
Basin Electric
Black Hills Power
Canadian Gas & Power
CFE/ JLP
CINERGY
Cogentrix
Constellation Energy
Consumers Energy
Dominion
DP&L
Duke Energy
Dynegy
First Energy
Georgia Power
GenOn Energy
Great River Energy
Kinder Morgan
Midwest Energy
Minnesota Power
Mirant
Nebraska Power
New Brunswick Power
NRG
Pacifcorp
Plainfield-Greenleaf Power
Progress Energy
PPL
Reliant Energy
SaskPower
South Carolina Electric & Gas
Southern Company
Talen Energy
TECO – Tampa Power
Trans Alta
TXU
Wheelabrator
Xcel Energy
Antamina
Asarco
BHP Worsley
Barrick Gold
Casarones Lumina Copper
Codero Rojo
Collahuasi
Dolores Gold
Dry Fork
Eagle Rock
Endako
Flaconbridge
Freeport McMoran Copper & Gold
Goldcorp
Hochschild Mining
INCO
Ivanhoe Mines
Kennecott Copper
Kensington Gold
KFX
Los Pelambres
Noranda Mining
OCI
Oyu Tolgoi
Peabody Energy
Phelps Dodge
Pirquitas Mine
Rio Tinto
Santa Cruz
San Cristobal
Searles Valley Minerals
Semafo Burkina Faso
Sherwin Alumina
Triton Coal
Southern Peru Copper
SQM
U.S. Gypsum
U.S. Steel
Aker Kvaerner
AMEC
Barr Engineering
Bateman Engineering
Bechtel
Burns & McDonnell
C.B.C.L. Engineers
Fluor
FLS
FMC
Kilborn Engineering
Krupp
Roberts & Schaefer
SNC Lavalin
Stone & Webster – SHAW Group
SKM
Burns & McDonnell
Sarge & Lundy
Sandwell
Tenova Takraf
ThyssenKrupp
Wardrop
Worley Parsons
Domtar Industries
NORPAC
Weyerhaeuser
Smart Papers
RockTenn
VERSO Paper
CEMEX
Cementos BioBio
Essroc
Henosa
Holcim Cement
Inland Cement
LaFarge Cement
Lehigh Hanson
Titan Cement