From the market structure,the steel industry was consid-ered as backbone of a country's industries in the past.Ina single country, generally there will be phenomenon ofmonopoly, therefore,compared to other industries,global-ization and large-scale of steel industry have been lagged behind.The production proportion of world's top five steel enterprises isincreased slightly from 12% in 1989 to 14.9% in 1999.