Metallus Earns AS9100D Certification

CANTON, Ohio, Aug. 4, 2026 /PRNewswire/ -- Metallus (NYSE: MTUS), a leader in high-quality specialty metals, manufactured components, and supply chain solutions, today announced it has achieved AS9100D certification, a globally recognized quality management standard for the aerospace and defense industries.

The certification was awarded following a comprehensive independent assessment of Metallus' quality management system, processes and controls. AS9100D builds upon the ISO 9001:2015 framework and includes additional requirements related to risk management, product traceability, process verification and product safety. The certification applies to the design, manufacture and distribution of high-performance metal bar and seamless mechanical tubing products produced at Metallus' Canton, Ohio facilities, including Faircrest, Gambrinus and Harrison. The certification is valid through June 2029.