International Institute of Minerals Appraisers

P.O. Box 1123, Golden, Colorado, USA 80402

Executive Committee

The Executive Committee oversees and manages the operations of the Institute.

Darwin Werthessen, Jr.

IIMA President

  • CohnReznick
  • 674 Summer Street
  • Bridgewater, Massachusetts, USA 02324
  • Phone No: 1-508-846-6799
  • Cell No: 1-508-846-6799
  • Email: dwerthessen@gmail.com

Betsy M. Suppes

IIMA Vice-President

Zack Smith

IIMA Secretary

Charles G. Howard

IIMA Treasurer

  • Howard Engineering, Inc.
  • 411 Main Street
  • Mount Hope, West Virginia, USA 25880
  • Phone No: 1-304-877-6665
  • Fax No: 1-304-877-6664
  • Email: MiningEngineerWV@gmail.com

David Shetler

IIMA Past President

  • Black River, Ltd.
  • 250 W. Nottingham, Suite 310
  • San Antonio, Texas, USA 78209
  • Phone No: 1-210-744-5372
  • Email: jds2@bentrockoil.com

Previous Years Executive Committee

Years President Vice-President Secretary Treasurer Past President
2024 Darwin Werthessen Betsy Suppes Zack Smith Charles G. Howard David Shetler
2023 David Shetler Darwin Werthessen Betsy Suppes Charles G. Howard John B. Gustavson
2022 David Shetler Darwin Werthessen Betsy Suppes Charles G. Howard John B. Gustavson
2021 John B. Gustavson David Shetler Darwin Werthessen Charles G. Howard Timothy S. Knobloch
2020 John B. Gustavson David Shetler Darwin Werthessen Charles G. Howard Timothy S. Knobloch
2019 Timothy S. Knobloch John B. Gustavson David Shetler Charles G. Howard John J. Manes
2018 Timothy S. Knobloch John B. Gustavson David Shetler Charles G. Howard John J. Manes
2017 John J. Manes John B. Gustavson Timothy S. Knobloch Charles G. Howard Fredric L. Pirkle
2016 John J. Manes John B. Gustavson Timothy S. Knobloch Charles G. Howard Fredric L. Pirkle
2015 John J. Manes John B. Gustavson Timothy S. Knobloch Charles G. Howard Fredric L. Pirkle
2014 John J. Manes John B. Gustavson Timothy S. Knobloch Charles G. Howard Fredric L. Pirkle
2013 Fredric L. Pirkle Mitch Albert John J. Manes Charles G. Howard John B. Gustavson
2012 Fredric L. Pirkle Mitch Albert John J. Manes Charles G. Howard John B. Gustvason
2011 John B. Gustavson John J. Manes Don Warnken William Bagby Bob Frahme
2010 John B. Gustavson John J. Manes Don Warnken William Bagby Bob Frahme
2009 John B. Gustavson John Chance Don Warnken William Bagby Bob Frahme
2008 John B. Gustavson John Chance Don Warnken William Bagby Bob Frahme
2007 Bob Frahme Charles Melbye John B. Gustavson William Bagby Michael Cartwright
2006 Michael Cartwright Charles Melbye John B. Gustavson Bob Frahme Don Warnken
2005 Don Warnken Michael Cartwright John B. Gustavson Alan Stagg Edwin Moritz
2004 Edwin Moritz Don Warnken John B. Gustavson Alan Stagg Sam Pickering
2003 Sam Pickering Edwin Moritz John B. Gustavson Lawrence Gregg Trevor Ellis
2002 Trevor Ellis Sam Pickering John B. Gustavson Edwin Moritz Michael Cartwright
2001 Trevor Ellis Sam Pickering John B. Gustavson Edwin Moritz Michael Cartwright
2000 Michael Cartwright Trevor Ellis John B. Gustavson Edwin Moritz
1999 Michael Cartwright Trevor Ellis John B. Gustavson Edwin Moritz
1998 Michael Cartwright Trevor Ellis J. Paul Fly Edwin Moritz John B. Gustavson
1997 John B. Gustavson Michael Cartwright J. Paul Fly Trevor Ellis
1996 John B. Gustavson Don Warnken J. Paul Fly Trevor Ellis
1995 John B. Gustavson Don Warnken J. Paul Fly Trevor Ellis