All Engineering/EPC/EPCM in United States

Independent Mining Consultants, Inc.

Krech Ojard & Associates, Inc.

OTR OnSite

Redwave Solutions-US LLC

TPD

Costmine

MWH Global

Heyl & Patterson Equipment

GEI Consultants, Inc.

Geokon

SpinTek Filtration, Inc.

Kappes, Cassiday & Associates