HTSUS, United States
3816.00.10.00
Dolomite ramming mix
Classification path
- Refractory cements, mortars, concretes and similar compositions, including dolomite ramming mix, other than products of heading 3801
- Dolomite ramming mix
Rates of duty
- General (MFN)
- Free
- Column 2Cuba, North Korea, Russia, Belarus
- 30%
- Unit of quantity
- t
Related lines in heading 3816
About heading 3816
Refractory cements, mortars, concretes and similar compositions, including dolomite ramming mix, other than products of heading 3801
Heading 3816 covers refractory cements, mortars, concretes and similar compositions, including dolomite ramming mix, but not products of heading 3801. The declarable lines split dolomite ramming mix from other compositions. Other compositions are split into clay and other.
Full guide to heading 3816Products in this heading
- Dolomite ramming mix
- Clay-based refractory mortar
- Non-clay refractory mortar
- Refractory castable concrete mix
- Refractory gunning mix
- Refractory patching cement
- Refractory furnace lining concrete
Frequently asked questions
What is the HTS code for dolomite ramming mix?
Use 3816.00.10.00; the general (MFN) rate is Free.
What is the duty on clay-based refractory mortar?
The general (MFN) rate for 3816.00.20.10 is 3%.
How do I classify refractory concrete that is not dolomite and not clay-based?
Classify it in 3816.00.20.50; the general (MFN) rate is 3%.
Source: USITC Harmonized Tariff Schedule, retrieved October 22, 2026.