2518.20.00.00
Calcined or sintered dolomite
Classification path
- 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
Rates of duty
- General (MFN)
- 3%
- Column 2Cuba, North Korea, Russia, Belarus
- 30%
- Unit of quantity
- t
Trade agreement rates
Related lines in heading 2518
About 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
Heading 2518 covers dolomite, including dolomite that has been calcined or sintered, and dolomite roughly trimmed or cut into rectangular blocks or slabs. It is split by whether the dolomite is not calcined or sintered, or is calcined or sintered.
Full guide to heading 2518Products in this heading
- Raw dolomite rock
- Dolomite blocks for building
- Dolomite slabs for paving
- Calcined dolomite
- Sintered dolomite
- Dolomite for refractory use
Frequently asked questions
What is the HTS code for uncalcined dolomite?
Uncalcined dolomite is classified under 2518.10.00.00, with a general (MFN) rate of Free.
What is the duty on calcined or sintered dolomite?
Calcined or sintered dolomite is classified under 2518.20.00.00, with a general (MFN) rate of 3%.
How do I classify dolomite blocks or slabs?
If the dolomite is not calcined or sintered, use 2518.10.00.00, general (MFN) Free. If it is calcined or sintered, use 2518.20.00.00, general (MFN) 3%.
Source: USITC Harmonized Tariff Schedule, retrieved October 21, 2026.