Dow Chemical Co. Announced At Least 400 Layoffs at Midland, Mich. Headquarters January 31, 2009 No Comments on Dow Chemical Co. Announced At Least 400 Layoffs at Midland, Mich. Headquarters Post View 1 Dow Chemical Co announced on Friday that they will be laying off between 400 and 500 workers near their Midland, Michigan headquarters. The layoffs come…