Kemin AgriFoods North America has promoted Lew Lewis to senior key account manager. In this role, Lewis serves as the Kemin AgriFoods representative to customers in Arkansas, Missouri, Kansas, Oklahoma, Mississippi, Louisiana and Texas. Also promoted was Kristi Krafka to vice president of regulatory affairs, quality assurance and quality control. In this role, Krafka provides strategic and operational regulatory expertise and leadership for regulatory approvals and monitors the quality of Kemin products to achieve the company's commercial objectives.