US: Lehigh Hanson has started construction work on a US$600m upgrade to its Mitchell cement plant. The groundbreaking ceremony follows approval of an air permit by the Indiana Department of Environmental Management (IDEM) in July 2019, according to WBIW radio. The subsidiary of Germany’s HeidelbergCement is building a new production line to replace the existing three lines at the site. Start-up for the line is scheduled for the third quarter of 2022.
