Missouri’s newest ethanol plant will be next to a corn mill adjacent to the Southeast Missouri Regional Port Authority in Scott City. SEMO Milling says the plant will produce 100-million gallons of ethanol a year. Backers hope the plant can be producing late next year with 30 to 40 employees. Missouri has three ethanol plants now and a fourth coming on line this fall. Combined, they will produce 156-million gallons. Two other plants have been proposed for southeast Missouri, in addition to the one at the port authority. Developers of those two say they also will produce 100-million gallons a year. It takes 36-million bushels of corn to make 100-million gallons of ethanol.