USS-Posco Industries (UPI) to close, sell plant in 2023 or 2024 The Pittsburg, CA based finished steel producer USS-Posco Industries (UPI) will close its doors in 2023. UPI manufactures hot rolled pickled and oiled, cold rolled coil, hot dipped galvanized and tin plate. Although unconfirmed, the facility was reportedly purchased by Amazon for use as […]
