54023300 under HS Code SYNTHETIC FILAMENT YARN (OTHER THAN SEWING THREAD), NOT PUT UP FOR RETAIL SALE, INCLUDING SYNTHETIC MONOFILAMENT OF LESS THAN 67 DECITEX TEXTURED YARN :OF POLYESTERS, 54024700 under HS Code OTHER SYNTHETIC FILAMENT YARN (OTHER THAN SEWING THREAD), NOT PUT UP FOR RETAIL SALE, INCLUDING SYNTHETIC MONOFILAMENT OF LESS THAN 67 DECITEX OTHER YARN, SINGLE, UNTWISTED OR WITH A TWIST NOT EXCEEDING 50 TURNS PER METRE : OF POLYESTERS, and 54025100 under HS Code SYNTHETIC FILAMENT YARN (OTHER THAN SEWING THREAD), NOT PUT UP FOR RETAIL SALE, INCLUDING SYNTHETIC MONOFILAMENT OF LESS THAN 67 DECITEX OTHER YARN, SINGLE, WITH A TWIST EXCEEDING 50 TURNS PER METRE : OF NYLON OR OTHER POLYAMIDES were the top imported HS Codes by T & A ASSOCIATES in 2021.