In 2023, most of the polyester filament production projects were concentrated in Jiangsu Province, especially in northern Jiangsu, such as Siyang and Suqian. The production scale in Jiangsu Province accounted for 78.7% of the total national production. However, with the gradual transfer of polyester filament production projects to Jiangsu in recent years, the supply in Jiangsu Province has increased significantly. In 2023, the supply accounted for about 25% of the total national supply, an increase of about 2% year-on-year.
  It is expected that there will only be one project with a scale of 300000 tons in Jiangsu region. However, based on the analysis of the scale of enterprise industrial park projects, there is still a production plan of over 4 million tons in Jiangsu region from 2025 to 2029. In the future, the production capacity of polyester filament will mainly be concentrated in Jiangsu, Fujian, Anhui and other regions. At the same time, enterprises with smaller production capacity or outdated equipment in Jiangsu, Zhejiang, and Fujian regions are expected to exit, Therefore, overall, the proportion of production capacity supply in Jiangsu region will gradually increase to around 35% in the future, which is expected to increase by 10 percentage points compared to 2023.