Gevo Inc. has hired Chris Ryan as vice president of business development–downstream. In this role, he will be responsible for business development in converting isobutanol into chemicals, jet fuel, gasoline, diesel and fuel blendstocks. Ryan comes to Gevo with more than 15 years of strategic leadership, business development, research and product development in biobased materials. Most recently, he served as chief operating officer and chief technology officer for NatureWorks LLC. As a founding member of NatureWorks, Ryan was involved in the development and commercialization of the company's new biobased polymer from lab-scale production through the introduction and growth of polylactic acid through its $300 million world-scale production facility.