Mike Rath serves as Senior VP of Commodities for Darling Ingredients and is Chair of Clean Fuels Alliance America. At Darling Ingredients, he is responsible for all finished product sales, risk management, rail transportation and energy procurement. The company operates 66 rendering and used cooking oil plants in the North America, supplying fats and waste oils to the biomass-based diesel market. Previously Rath worked at ADM for 21 years in various roles, dedicated to biodiesel and renewables development in the last few years. He is a graduate of the University of Nebraska with a Bachelor of Science in Agriculture Economics

David Allen is Vice President and Chief Sustainability Officer for PepsiCo Foods North America (PFNA), which includes Frito-Lay North America (FLNA) and Quaker Foods North America (QFNA). In this role, he is responsible for driving PFNA’s execution of its PepsiCo Positive (pep+) sustainability goals and vision to build a more sustainable food system and reduce environmental impact.

David began his career with PepsiCo as an engineer in 1996. He spent 20 years in various field manufacturing and distribution leadership roles across the U.S., giving him significant breadth and depth of supply chain experience.

Prior to his current role, David served as the Senior Director of Quality and Food Safety for PFNA. He holds a bachelor’s degree in mechanical engineering from Texas A&M University.

Adam Buttgenbach is the Director of Fleet Engineering and Sustainability at PepsiCo. He leads the team in designing equipment that improves safety, reliability, and sustainability performance across the PepsiCo fleet. As one of the largest private fleets in North America, the team has led scaled deployments of electric and alternative fuel-powered vehicles to decarbonize its operations. As part of its pep+ initiatives, PepsiCo announced a goal to achieve net-zero emissions across its value chain by 2040.

Prior to PepsiCo, Adam spent time in agriculture transportation, the utility industry, and armored logistics. His experience includes specialized over-dimensional freight, custom equipment designs, and 3PL management. Adam holds a bachelor’s degree in Ag Business from the California Polytechnic State University and a master’s in Supply Chain Management from the Massachusetts Institute of Technology.

Colin Huwyler is a veteran of the renewable fuels industry. Prior to becoming CEO of Optimus, he was the founder and CEO of Fossil Free Fuel, a renewable fuel company, and was the Director of Research and Technology at Steel City Biofuels, a biodiesel program of Penn State University. Huwyler is the co-inventor on a number of Optimus patents, holds a B.S. in Mechanical Engineering from the University of Pittsburgh, and earned a certificate in Entrepreneurial Leadership from Carnegie Mellon University’s Tepper School of Business.

Tom serves as the Director of Outreach and Development for Clean Fuels Alliance America. Tom works to establish synergistic relationships for the benefit of the biodiesel industry with key stakeholders including feed stock suppliers, state soybean associations, fuel suppliers, end-users, policy makers, government agencies and environmental/ health groups. Tom also works to identify and access resources that will address the needs of the organization and the industry.

Previously, Tom spent 12 years as the Director of Field Services for the Missouri Soybean Association. Tom was responsible for developing soy based industrial products and turning them into value-added opportunities for Missouri soybean producers. Tom has worked on biodiesel for twelve years in Missouri helping to develop state biodiesel policies, regulations and markets. Tom is a 1987 graduate of University of Illinois with a Bachelor of Science degree in Agricultural Economics.

Scott Fenwick serves as the Technical Director for Clean Fuels Alliance America. Fenwick leads the advancement of core member services for technical and quality assurance support issues. He provides key support for technical aspects needed by biodiesel stakeholders including both producer members, obligated parties and fuel users to effectively position the biodiesel industry. Additionally, he educates key decision makers to help build industry credibility. In addition to coordinating the OEM and fuel quality programs under Clean Fuels Alliance America, Fenwick has also been elected to chair the ASTM D02 Committee covering all Petroleum Products, Liquid Fuels and Lubricants. He also coordinates other international biodiesel and fuel activities for other standards development organizations. After serving as Chairman of the BQ-9000 Commission, he is now a liaison to the National Biodiesel Accreditation Commission. Previously, Fenwick was involved with the fuel inspection industry for nearly 25 years and managed several fuel testing laboratories. After attending Purdue University, he also worked for Archer Daniels Midland Company organizing their Biofuels Technical Services.