Douglass T. Simpson

President and Chief Executive Officer

Mr. Simpson has been with Corgenix since 1992. Prior to joining Corgenix, he was Managing Partner at Venture Marketing Group in Austin, Texas, a health care and biotechnology marketing firm, and in that capacity, served as a consultant to the Company from 1990 until 1992. From 1984 to 1990, Mr. Simpson was employed by Kallestad Diagnostics, Inc., a global diagnostics company that was acquired by Sanofi Diagnostics Pasteur where Mr. Simpson served as Vice President of Marketing, in charge of all marketing and business development activities worldwide. From 1973 to 1984, Mr. Simpson held various marketing positions at Helena Laboratories Corporation. Mr. Simpson holds B.S. and M.S. degrees in Biology and Chemistry from Lamar University in Beaumont, Texas.

William H. Critchfield

Senior Vice President Operations and Finance and Chief Financial Officer

Mr. Critchfield joined the Company in 2000. Prior to joining Corgenix, Mr. Critchfield was Executive Vice President and Chief Financial Officer of U.S. Medical, Inc., a Denver, Colorado based privately held distributor of capital medical equipment. From 1994 through 1999, he served as President and Chief Financial Officer of W.L.C. Enterprises, Inc., a retail business holding company. From 1991 to 1994, Mr. Critchfield served as Executive Vice President and Chief Financial Officer of Air Methods Corporation, the leading U.S. company in the air medical transportation industry and is the successor company to Cell Technology, Inc., a publicly traded biotechnology company, where he served in a similar capacity from 1987-1991. From 1986 through 1987, he served as Vice President of Finance and Administration for Biostar Medical Products, Inc., a developer and manufacturer of diagnostic immunoassays. In the past, Mr. Critchfield also served as Vice President of Finance for Nuclear Pharmacy, Inc., formerly a publicly traded company and the world’s largest chain of centralized radiopharmacies. Mr. Critchfield is a certified public accountant in Colorado. He graduated magna cum laude from California State University-Northridge with a B.S. degree in Business Administration and Accounting.

Luis R. Lopez, M.D.

Chief Medical Officer

Dr. Lopez founded the Company in 1990. From 1987 to 1990, Dr. Lopez was Vice President of Clinical Affairs at BioStar Medical Products, Inc., a Boulder, Colorado diagnostics firm. From 1986 to 1987, he served as Research Associate with the Rheumatology Division of the University of Colorado Health Sciences Center, Denver, Colorado. From 1980 to 1986, he was Professor of Immunology at Cayetano Heredia University School of Medicine in Lima, Peru, during which time he also maintained a medical practice with the Allergy and Clinical Immunology group at Clinica Ricardo Palma in Lima. From 1978 to 1980, Dr. Lopez held a fellowship in Clinical Immunology at the University of Colorado Health Sciences Center. He received his M.D. degree in 1974 from Cayetano Heredia University School of Medicine in Lima, Peru. He is a clinical member of the American College of Rheumatology, and a corresponding member of the American Academy of Allergy, Asthma and Immunology. Dr. Lopez is licensed to practice medicine in Colorado, and is widely published in the areas of immunology and autoimmune disease.

Taryn G. Reynolds

Vice President Information Technology and Facilities

Mr. Reynolds joined the Company in 1992. Prior to joining Corgenix, Mr. Reynolds held executive positions at Brinker International, MJAR Corporation and M&S Incorporated, international and Colorado based property, operational and financial management firms.

Ann L. Steinbarger

Senior Vice President Sales and Marketing

Ms. Steinbarger joined the Company in 1996. From 1976 to 1996, Ms. Steinbarger was with Boehringer Mannheim Corporation, one of the world’s leading medical diagnostic companies, now part of Roche Diagnostics. At Boehringer she served in a series of increasingly important sales management positions. Ms. Steinbarger holds a B.S. degree in Microbiology from Purdue University in West Lafayette, Indiana.