ArcelorMittal announced plans reported today to modernise the hot-strip mill at its Calvert, Alabama facility using SMS Group technology, part of a capital upgrade programme aimed at improving strip quality and operational flexibility. The trade press coverage on August 22, 2025 indicated the project will introduce SMS Group’s hot-rolling and process-control systems, intended to raise throughput consistency and enable tighter gauge tolerances for high-value automotive and industrial grades. ArcelorMittal’s Calvert complex, a major US flat-steel site, has been a focal point for prior capacity investments; the announced modernisation is positioned to support product mix shifts toward higher-value coated and advanced high-strength steels demanded by OEMs. The article noted timing and budget figures in the initial reports were described as subject to final approval and supplier contracting, and that the upgrade aligns with broader sector efforts to upgrade ageing hot-strip assets to meet tighter product specifications and efficiency targets. The move follows industry trends of targeted mill modernisations to preserve competitiveness amid higher energy and feedstock costs.