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
2 declarable lines
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.
Products in this heading
- Raw dolomite rock
- Dolomite blocks for building
- Dolomite slabs for paving
- Calcined dolomite
- Sintered dolomite
- Dolomite for refractory use
How to choose the right subheading
- Check whether the dolomite is not calcined or sintered, or has been calcined or sintered.
- Confirm the material is dolomite rather than marble, granite, magnesite, or gypsum.
- For blocks or slabs, check whether they are roughly trimmed or merely cut into rectangular shapes.
- Do not decide by end use alone; the calcined or sintered condition controls the subheading.
Often confused with
- Heading 2515Marble blocks or slabs
Marble is a different calcareous stone covered by heading 2515.
- Heading 2516Granite blocks or slabs
Granite is a different monumental or building stone.
- Heading 2519Magnesite
Natural magnesium carbonate is classified in heading 2519, not as dolomite.
- Heading 2520Gypsum
Gypsum and anhydrite are separate mineral products.
- Heading 2517Crushed dolomite for aggregate
Crushed stone for concrete, road metal, or ballast is generally heading 2517.
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%.
Guide written from the official schedule text. Rates quoted are general (MFN) rates; check the line page for trade agreement rates and the classification of your exact product.