Portland cement, aluminous cement, slag cement, supersulfate cement and similar hydraulic cements, whether or not colored or in the form of clinkers
5 declarable lines
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.
Products 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
How to choose the right subheading
- Decide whether the goods are clinkers, which are unfinished kiln product, or finished cement.
- Identify whether the cement is portland, aluminous, or another hydraulic type such as slag or supersulfate.
- For portland cement, decide whether it is white cement or other (gray) portland cement.
- Note that coloring does not move white portland cement out of its subheading.
- Check that the product is a hydraulic cement and not a lime, gypsum plaster, or a finished concrete article.
Often confused with
- Heading 2520Gypsum plaster and calcined gypsum-based plasters
Gypsum plasters are classified in heading 2520, not with hydraulic cements.
- Heading 2522Quicklime, slaked lime and hydraulic lime
Lime products are covered by heading 2522.
- Heading 3816Refractory cements, mortars and similar refractory compositions
Refractory cements and mortars are chemical preparations in heading 3816.
- Heading 2524Asbestos
Asbestos is a separate mineral heading and is not a hydraulic cement.
- Heading 6810Cement concrete blocks, bricks, tiles and other articles of cement
Finished articles of cement or concrete are classified in heading 6810, not as cement in bulk.
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.
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.