MARSHALL — Updates that allowed the Archer Daniels Midland plant in Marshall to process more corn starch for customers are online and hitting goals, plant manager Eric McVey said this week. McVey said the plant expansions were completed about a year ago, and have been up and running. The increased starch production is helping meet demand from ADM customers, he said. McVey and ADM staff were at the Marshall Area Chamber of Commerce’s Business After Hours event earlier this week to help answer questions from the public about the Marshall corn plant. Employees had hands-on stations ...