The World Steel Association has published the 2010 edition of World Steel in Figures.
The largest five steel producing worldsteel member companies in 2009 were:
| Rank | Country | Volume | Share |
| 1 | ArcelorMittal | 77.5 | 6.3% |
| 2 | Baosteel | 31.3 | 2.6% |
| 3 | POSCO | 31.1 | 2.5% |
| 4 | Nippon Steel | 26.5 | 2.2% |
| 5 | JFE | 25.8 | 2.1% |
In million tonnes
They accounted for 15.7% of global output
Source: worldsteel (13 Jul 2010)
