Heading 2518: Dolomite, whether or not calcined or sintered, including dolomite roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape:

From Chapter 25: Chapter 25

HTS Codes (10-Digit)

HTS Code Description General Duty
2518100000
Dolomite, whether or not calcined or sintered, including dolomite roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape Dolomite, not calcined or sintered
 Free
2518200000
Dolomite, whether or not calcined or sintered, including dolomite roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape Calcined or sintered dolomite
 3%