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FILE – In this June 28, 2018, file photo, rolls of finished steel are seen at the U.S. Steel Granite City Works facility in Granite City, Ill. United States Steel Corp. announced plans to improve its facilities in western Pennsylvania. (AP Photo/Jeff Roberson, File)

(Pittsburgh) — U.S. Steel will invest more than $1 billion on state-of-the-art facilities in western Pennsylvania that it says will improve its steelmaking efficiency and reduce emissions at its Mon Valley Works operations.

The company says new casting and rolling technology at its Edgar Thompson Plant will allow it to combine thin slab casting and hot rolled band production into one process, the first of its kind in the U.S. The steelmaker said Thursday that a new cogeneration facility at its Clairton Plant will feature an emissions control system that can convert some of the coke oven gas generated there into electricity to power other parts of the plant.

U.S. Steel Corp., based in Pittsburgh, expects the first coil production from the new facility in 2022.