Steel HarbisonWalker International Introduces MULE-R October 24, 2019 Innovation Steel HarbisonWalker International Expands White Cloud, Michigan Manufacturing Complex July 30, 2019 Facilities Manufacturing Steel White Cloud Plant HarbisonWalker International Celebrates New Investments in White Cloud, Michigan Manufacturing Facility July 25, 2019 Community Events Facilities Manufacturing Steel White Cloud Plant HarbisonWalker targets 25% refractories capacity increase May 23, 2019 AIST Steel HarbisonWalker scaling up US refractories output to meet higher steel demand May 23, 2019 AIST Steel HarbisonWalker International Investing to Increase Capacity May 23, 2019 AIST Steel