Hamilton Journal News
IMPORTANT DATES IN MIDDLETOWN STEELMAKING HISTORY Dec. 27, 1899: Company was incorporated as the American Rolling Mill Co. April 7, 1994: The name Armco was replaced by AK Steel.
April 7, 2017: The company celebrated the grand opening of its new Research and Innovation Center in Middletown.
March 13, 2020: ClevelandCliffs announced it had purchased AK Steel for
Feb. 26, 2021: ClevelandCliffs sent out an email announcing it was changing name of AK Steel.