According to the author's summary and investigation of relevant data, by the end of 2005, there are 90 countries and regions that can produce extruded aluminum, with a total of 2012 plants, with a production capacity of 18,500 kt/a and an average production capacity of 9.2 kt/a; About 8000 extruders; in 2005, the world's total output of extruded materials is 1100kt, capacity utilization rate is about 59.5%, and the highest in Japan is 88%; global ratio of aluminum strip production to extrusion production is 58:42, construction extrusion The ratio of aluminum to industrial extruded aluminum is 55.5:44.5. The 10 countries and regions with the largest production capacity are: China, the United States, Japan, Italy, Spain, Germany, South Korea, Russia, Taiwan Province of China, and Turkey. Their production capacity accounts for 72% of the world's total production capacity. The production capacity of the top 5 countries accounts for 57.9% of the total global production capacity.