2523.90.00.00
Other hydraulic cements
Classification path
- Portland cement, aluminous cement, slag cement, supersulfate cement and similar hydraulic cements, whether or not colored or in the form of clinkers
- Other hydraulic cements
Rates of duty
- General (MFN)
- Free
- Column 2Cuba, North Korea, Russia, Belarus
- $1.32/t, including weight of container
- Unit of quantity
- t
Related lines in heading 2523
About heading 2523
Portland cement, aluminous cement, slag cement, supersulfate cement and similar hydraulic cements, whether or not colored or in the form of clinkers
Heading 2523 covers hydraulic cements and cement clinkers, whether or not colored. The heading splits first by product type: clinkers, portland cement (split into white and other), aluminous cement, and all other hydraulic cements such as slag and supersulfate cements. All declarable lines in this heading carry a general (MFN) duty rate of Free.
Full guide to heading 2523Products in this heading
- Portland cement clinkers
- Ordinary gray portland cement
- White portland cement, including artificially colored white cement
- Aluminous (high alumina) cement
- Slag cement
- Supersulfate cement
- Other hydraulic cements not named elsewhere in the heading
Frequently asked questions
What is the HTS code for portland cement?
Other (gray) portland cement falls under 2523.29.00.00, which carries a general (MFN) rate of Free. White portland cement, whether or not artificially colored, is classified under 2523.21.00.00, also at a general (MFN) rate of Free.
What is the duty on cement clinkers?
Cement clinkers are classified under 2523.10.00.00 and the general (MFN) duty rate is Free.
How do I classify aluminous cement?
Aluminous cement is provided for separately in heading 2523 under 2523.30.00.00, with a general (MFN) rate of Free. It is not grouped with portland cement subheadings.
Source: USITC Harmonized Tariff Schedule, retrieved October 21, 2026.