HSN heading 5509 falls under Chapter 55 — man-made staple fibres. It breaks down into 18 sub-codes listed below.
Sub-codes under 5509 (18)
550911
SINGLE YARN
550912
MULTIPLE (FOLDED) OR CABLED YARN
550921
SINGLE YARN
550922
MULTIPLE (FOLDED) OR CABLED YARN
550931
SINGLE YARN
550932
MULTIPLE (FOLDED) OR CABLED YARN
550941
SINGLE YARN :
550942
MULTIPLE (FOLDED) OR CABLED YARN :
550951
MIXED MAINLY OR SOLELY WITH ARTIFICIAL STAPLE FIBRES
550952
MIXED MAINLY OR SOLELY WITH WOOL OR FINE ANIMAL HAIR
550953
MIXED MAINLY OR SOLELY WITH COTTON
550959
OTHER
550961
MIXED MAINLY OR SOLELY WITH WOOL OR FINE ANIMAL HAIR
550962
MIXED MAINLY OR SOLELY WITH COTTON
550969
OTHER
550991
MIXED MAINLY OR SOLELY WITH WOOL OR FINE ANIMAL HAIR
550992
MIXED MAINLY OR SOLELY WITH COTTON
550999
Other:
About HSN heading 5509
The 4-digit code 5509 is an HSN heading — a mid-level grouping that breaks down further into 6-digit sub-headings and 8-digit tariff items. Choose the most specific sub-code that matches your supply so the GST rate, e-invoice schema, and GSTR-1 HSN summary all line up correctly. It sits inside Chapter 55, which covers man-made staple fibres.