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The steel industry is the basic industry of the national economy. This paper aims at the problems that the organization structure and scale efficiency of the steel industry in China are not completely reasonable. By analyzing the evolution data of the industrial concentration of China, Japan, the United States and South Korea, the steel industry can be optimized for China. The structure can learn from and learn from the experience and lessons. The results of the study show that: Steel companies should pay attention to clear market positioning and improve their own competitiveness, rather than blindly seeking to expand their scale; the increase in industrial concentration of the steel industry is the result of an objective choice to adapt to market competition, not the result of subjective decisions; the development of enterprises must have an international perspective, and attach importance to strategic cooperation with related industrial enterprises.

Comparative Study on Industrial Concentration Degree of China, Japan, USA, Korea Steel Industry