520612000000 under HS Code COTTON YARN (OTHER THAN SEWING THREAD), CONTAINING LESS THAN 85% BY WEIGHT OF COTTON, NOT PUT UP FOR RETAIL SALE - SINGLE YARN, OF UNCOMBED FIBRES : MEASURING LESS THAN 714.29 DECITEX BUT NOT LESS THAN 232.56 DECITEX (EXCEEDING 14 METRICNUMBER BUT NOT EXCEEDING 43 METRIC NUMBER), 550953000000 under HS Code YARN (OTHER THAN SEWING THREAD) OF SYNTHETIC STAPLE FIBRES, NOT PUT UP FOR RETAIL SALE - OTHER YARN, OF POLYESTER STAPLE FIBRES : MIXED MAINLY OR SOLELY WITH COTTON, and 550911000000 under HS Code YARN (OTHER THAN SEWING THREAD) OF SYNTHETIC STAPLE FIBRES, NOT PUT UP FOR RETAIL SALE - CONTAINING 85% OR MORE BY WEIGHT OF STAPLE FIBRES OF NYLON OR OTHER POLYAMIDES : SINGLE YARN. were the top exported HS Codes by ZE SE TEKSTIL ITHALAT IHRACAT SANAYI VE TICARET LIMITED SIRKETI in 2021.