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Providing mine engineering services to the world's mining industry since 1983.

Independent Mining Consultants, Inc. (IMC) was founded in 1983 by Michael Hester, John Marek, and Herb Welhener. Prior to starting IMC, all three had established substantial careers in the mine engineering and consulting fields. IMC's personnel has remained consistent in the more than 33 year history of the corporation.

Contact Us

IMC personnel can be contacted through our main office.

Independent Mining Consultants, Inc.
3560 East Gas Road
Tucson, Arizona 85714
General Inquiries: 

Information regarding Independent Mining Consultants services, can be made via telephone or email. Please feel free to contact us!

Mr. John M. Marek

Vice President
Mr. Herbert E. Welhener

Vice President
Mr. Michael G. Hester

Joseph McNaughton

Anh Nguyen

Jacob Richey

General Inquiries
Ms. S. Yvette Gengler - Senior Geological Engineer

Our Recent Projects

View our Project Map »

  • Marathon Project

    Stillwater Mining Co.

    Ontario, Canada
  • Camp Grant Quarry

    Broken Hill Proprietary

    Arizona, USA
  • Stibnite Gold

    Midas Gold Corp.

    Idaho, USA
  • Aği Daği-Kirazli

    Alamos Gold Inc.

    Canakkale, Turkey
  • King-King

    MDC America Inc.

    Mindanao, Philippines
  • Los Filos

    Goldcorp, Inc.

    Guerrero, Mexico
  • CEMEX Gypsum

    National Gypsum Co.

    Arizona, USA
  • Minera Tres Valles (MTV) Copper Project

    Sprott Resource Holdings, Inc

    Salamanca, Chile
  • Amulsar Gold

    Lydian International Ltd.

    Vayots Dzor, Armenia
  • La Preciosa

    Coeur Mining, Inc.

    Durango, Mexico