上海充通大学 材料科学与工程学院 Top steel-producing companies 2012 School of Materials Science and Enginecring.SITU million tonnes crude steel production Rank Company Tonnage 1 ArcelorMittal 93.6 2 Nippon Steel Sumitomo Metal Corporation 47.9 3 Hebei Group 42.8 4 Baosteel Group 42.7 5 POSCO 39.9 6 Wuhan Group 36.4 7 Shagang Group 32.3 8 Shougang Group 31.4 9 JFE 30.4 10 Ansteel Group 30.2 http://worldsteel.org/statistics/top- producers.htmlTop steel -producing companies 2012 million tonnes crude steel production http://worldsteel.org/statistics/top￾producers.html