Spandex outperformed in 2021 compared with nylon and polyester fibers.Spandex witnessed the highest profit, with profit of spandex 40D as high as 10,000-20,000yuan/mt. The cash flow of polyester POY 150D and FDY 150D was at 370yuan/mt and 30yuan/mt respectively after cost moved up. FDY saw apparentl