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Humic Products Trade Association
Legal Address:
PO Box 963
Spring Green, Wisconsin 53588

Mailing Address:
c/o Leonardite Products
PO Box 548
Williston, North Dakota 58802

eMail Address:

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HPTA Board Members (2019/2020):
President:  Russell Taylor, Live Earth (435.286.2222)
Vice President: Lyndon Smith, Bio Huma Netics, Inc. (480.961.1220)
Secretary: Cherie Harms, Leonardite Products (701.572.7659)
Science Advisor: Dan Olk, USDA  (515.294.8412)
Member at Large: David Chinn, Monty’s Plant Food Company (502.489.9888)
Member at Large: Mark Turner, The Catalyst Products Group (480.814.8318)

Methodology and Plant Food Coordinator: Lawrence Mayhew, EAM Consulting, (608.583.3095)
Marketing / Project Management: Melody Garoutte (