COVID-19 Pushes POSCO's Steel Business Into The Red, But A Cyclical Bounce Will ComeSeeking Alpha • 08/06/20
U. S. Steel Acquires Remaining 50 Percent Ownership Interest in USS-POSCO Industries (UPI) From POSCO-California CorporationGlobeNewsWire • 03/01/20
Korea Steel: POSCO Rally Justified But Momentum Insufficient For SustainabilitySeeking Alpha • 11/26/19