A brief analysis of China's polypropylene import and export in 2021 In 2021, China's polypropylene import and export volume changed greatly. Especially in the case of the rapid increase in domestic production capacity and output in 2021, the import volume will drop sharply and the export volume will rise sharply. 1. The import volume has dropped by a wide margin Figure 1 Comparison of polypropylene imports in 2021 According to customs statistics, polypropylene imports totally in 2021 reach 4,798,100 tons, down 26.8% from 6,555,200 tons in 2020, with an average annual import price of $1,311.59 per ton. Among.