A part of Hormel's Specialty Foods business, CytoSport is the maker of Muscle Milk.

AUSTIN, MINN. — Hormel Foods plans to close its CytoSport manufacturing plant in Benicia, Calif., in June and shift production to its Century Foods plant in Wisconsin as well as to third-party manufacturing plants near Benicia. The company incurred a $4.5 million charge during the second quarter of fiscal 2015, ended April 26.