U.S. Steel announced plans to invest approximately $3 billion to upgrade the hot-strip mill at Mon Valley Works and increase annual production capacity to 3.5 million tonnes. The new equipment will incorporate the latest technologies and is scheduled to begin operations in the second half of 2029.
U.S. Steel announced plans to build a new hot-strip mill at the Edgar Thomson Plant of Mon Valley Works in Pennsylvania, as part of the Nippon Steel Group. The investment will total approximately $3 billion and forms part of Nippon Steel's overall $11 billion U.S. investment plan.
The new mill will incorporate advanced equipment, including a walking-beam reheating furnace and sizing press, replacing aging existing facilities to improve productivity, energy efficiency and yield, while stabilizing quality. Construction will begin after the necessary permits and approvals are obtained, with operations scheduled to start in the second half of 2029.
The upgrade will increase annual production capacity from approximately 2.2 million tonnes to approximately 3.5 million tonnes. This represents an increase of approximately 1.3 million tonnes, or roughly 60% on a capacity basis. The companies aim to strengthen their supply capacity and competitiveness for steel products used in the automotive, appliance and energy sectors.
Nippon Steel positions U.S. Steel as a core base for its North American strategy and emphasized that the investment will support stable supply to the Americas market and contribute to local communities through job creation.