Powder River Proppants

Western Proppants, LLC

Mining

Denver, Colorado

Powder River Inc

Machinery Manufacturing

Provo, Utah

Midwest Mining Group

Financial Services

JHW services

Oil and Gas

Williston , North Dakota

U S Chemical

Chemical Manufacturing

Watertown, WI

Asama Coldwater Manufacturing (ACM)

Motor Vehicle Manufacturing

Coldwater, Michigan

Powder

Retail

POWDER & BULK SOLUCIONES INTEGRALES S.A.

Mechanical Or Industrial Engineering

Lima, Lima

Monad

Oil and Gas

Douglas, Wyoming

Metal Agency

Marketing Services

Tampa, Florida