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The Team

Executive Leadership
Nathan Brooks
Chief Executive Officer
Robert Karpiuk
Chief Technical Officer
Graham Billey
Chief Operating Officer
Gordon Rumschlag
Chief Quality Officer
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About Arbor Botanicals

Arbor Botanicals is a manufacturing and consulting company focused on bringing innovative solutions to the hemp and cannabis industries.

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Nathan Brooks

Chief Executive Officer

  • nate@arborbotanicals.com
  • (833) 987-2282

With over six years of experience and active participation in Michigan’s medical marijuana program, Nathan has worked on growing and cultivation facility design, extraction facility design, and extraction training. He has helped to launch numerous grow facilities and redesigned underperforming facilities to increase output and minimize expenses. He has an established network among the medical community within Michigan and in other states that have legalized medical cannabis. Nathan has also worked as a field engineer and technical consultant in water treatment across a broad range of industries, including Pharmaceutical, Agricultural, Automotive, and waste processing. His focus was on designing systems that optimized water usage and minimized chemical consumption, saving companies hundreds of thousands of dollars a year and lowering their environmental impact. Nathan also has extensive experience in sales and marketing and has been a top sales performer in both B2B and consumer markets. Nathan received a BSE in Chemical Engineering from the University of Michigan.

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Robert Karpiuk

Chief Technical Officer

  • bob@arborbotanicals.com

Mr. Karpiuk has served several companies over the past thirty-five years holding positions of Director of Manufacturing, General Manager, and President. Mr. Karpiuk’s career has spanned multiple industries, from food production and extraction to biodiesel and ethanol. He was responsible for constructing thirty-five production plants nationwide. He has practiced extraction for 50 years with solvents of CO2, methanol, hexane, 3C ethanol, isopropanol, and water. He has run hundreds of cannabis extraction batches along with subsequent purification steps. Mr. Karpiuk has run extractions on lab-scale of grams, pilot plant of pounds, and industrial extractions of 5000 tons per day of raw materials. He has experience in related fields of environmental permitting, fire suppression, government licensing, and general business startups. Mr. Karpiuk received a BS in Chemistry from the University of Michigan and later an MBA.

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Graham Billey

Production Manager

  • graham@arborbotanicals.com

Graham has seven years of experience as an engineer in manufacturing and logistics, successfully incorporating Lean processes to improve quality and reduce inefficiencies across a wide range of businesses, including medical devices, fire detection, high-tech fiber optic assembly manufacturing, and LTL trucking. Graham’s strong background in continuous improvement and analytics has improved our manufacturing process through statistical process controls, inventory management techniques, and data-driven process improvements. Graham received a BSE in Biomedical Engineering from the University of Michigan, an MSE in Biotechnology from the University of Michigan, and an MS in Data Analytics from the Georgia Institute of Technology.

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Gordon Rumschlag

Quality Manager

  • gordon@arborbotanicals.com

Gordon has a Bachelor of Science Degree in Biology and Chemistry from Alma College. He also worked in multiple research laboratories at Alma College and Wayne State University. Through this work, he has authored multiple peer-reviewed publications. After earning his degree, Gordon accepted a position working in the medical device and supply industry. In his position, Gordon has a variety of responsibilities including, but not limited to, ensuring Good Manufacturing Practices (GMPs) are being followed, creating and developing manufacturing protocols and procedures, and identifying, validating, and incorporating new technology and processes into the manufacturing department. Gordon has earned a graduate certificate in public health.