Yamana Gold, Inc.
Hi-Crush Partners LP
Alamos Gold, Inc.
Pretium Resources, Inc.
Cameco Corp.
NexGen Energy Ltd.
Lithium Americas Corp.
Almaden Minerals Ltd.
BHP Group Plc
Martin Marietta Materials, Inc.
Osisko Gold Royalties Ltd.
Coeur Mining, Inc.
Mechel PAO
SilverCrest Metals, Inc.
Companhia Siderurgica Nacional
Ciner Resources LP
General Moly, Inc.
Golden Star Resources Ltd.
Seabridge Gold, Inc.
Entrée Resources Ltd.
United States Lime & Minerals, Inc.
Louisiana-Pacific Corp.
Nexa Resources SA
Paramount Gold Nevada Corp.
Kinross Gold Corp.
Avino Silver & Gold Mines Ltd.
McEwen Mining, Inc.
Americas Silver Corp.
USG Corp.
Uranium Energy Corp.
First Majestic Silver Corp.
Rio Tinto Plc
Vulcan Materials Co.
New Gold, Inc.
Auryn Resources, Inc.
Pope Resources LP
CRH Plc
Silvercorp Metals, Inc.
Trilogy Metals, Inc.
MAG Silver Corp.
