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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 »

  • Wilhelm Project

    Blue Circle Cement, Inc.

    California, USA
  • La Yaqui - Cerro Pelon

    Alamos Gold Inc.

    Sonora, Mexico
  • Orogrande Garnet

    Orogrande Garnet Co.

    New Mexico, USA
  • Sonora Lithium Project

    Bacanora Minerals Ltd.

    Sonora, Mexico
  • Sunward Materials

    Sunward Materials

    Arizona, USA
  • Sishen Mine Iscor

    P & H Equipment

    Eastern Cape, South Africa
  • CEMEX Gypsum

    National Gypsum Co.

    Arizona, USA
  • Redding Quarry (Calaveras Cement)

    Lehigh Cement Company LLC

    California, USA
  • Tulkubash Gold Project

    Chaarat Gold Holdings, Ltd

    Chuy Region, Kyrgyzstan Republic
  • Camp Grant Quarry

    Broken Hill Proprietary

    Arizona, USA