HS Code 2508.40
Clays (excluding expanded clays of heading no. 6806); n.e.c. in heading no. 2508, whether or not calcined
2508.40.01
General Duty: Free
Clays, (not including expanded clays of heading 6806), nesoi, whether or not calcined
2508.40.01.10
THN
Common blue clay and other ball clays
2508.40.01.20
THN
Decolorizing earths and fuller's earth
2508.40.01.50
THN