3824.92.00.00
Polyglycol esters of methylphosphonic acid.
Classification path
- Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included
- Other
- Polyglycol esters of methylphosphonic acid.
Rates of duty
- General (MFN)
- 5%
- Column 2Cuba, North Korea, Russia, Belarus
- 25%
- Unit of quantity
- kg
Trade agreement rates
Related lines in heading 3824
- 3824.10.00.00Prepared binders for foundry molds or cores6%
- 3824.30.00.00Nonagglomerated metal carbides mixed together or with metallic binders3.6%
- 3824.40.10.00Containing 5 percent or more by weight of one or more aromatic or modified aromatic substances6.5%
- 3824.40.20.00Consisting wholly of inorganic substancesFree
- 3824.40.50.00Prepared additives for cements, mortars or concretes / Other5%
- 3824.50.00.10Nonrefractory mortars and concretes / WetFree
- 3824.50.00.50Nonrefractory mortars and concretes / OtherFree
- 3824.60.00.00Sorbitol other than that of subheading 2905.444.9%
- 3824.81.00.00Containing oxirane (ethylene oxide)5%
- 3824.82.10.00Chlorinated but not otherwise halogenated6.5%
- 3824.82.90.00Goods specified in subheading note 3 to this chapter / Other3.7%
- 3824.83.00.00Containing tris(2,3-dibromopropyl) phospate5%
About heading 3824
Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included
Heading 3824 covers prepared binders for foundry molds or cores, plus chemical products and preparations of the chemical or allied industries that are not named in another heading. It is split first by specific product groups (binders, metal carbides, cement additives, mortars, sorbitol), then by goods listed in subheading note 3, and finally by residual chemical mixtures under 3824.99.
Full guide to heading 3824Products in this heading
- Prepared binder for foundry sand molds or cores
- Nonagglomerated metal carbide powder mixed with a metallic binder
- Liquid additive for cement, mortar or concrete
- Nonrefractory wet mortar or concrete mix
- Sorbitol powder other than the sorbitol of heading 2905
- Cultured crystals weighing 2.5 g or more, in ingots
- Lithium nickel cobalt manganese oxide cathode powder
- Electroless plating solution for printed circuit boards
Frequently asked questions
What is the HTS code for prepared additives for cement or mortar?
Prepared additives consisting wholly of inorganic substances are 3824.40.20.00 at a general (MFN) rate of Free. Other prepared additives are 3824.40.50.00 at a general (MFN) rate of 5%, and those with 5% or more aromatic substances are 3824.40.10.00 at 6.5%.
What is the duty on nonrefractory mortar or concrete?
Wet nonrefractory mortars and concretes are 3824.50.00.10 at a general (MFN) rate of Free, and other nonrefractory mortars and concretes are 3824.50.00.50, also Free. Refractory compositions are not classified here.
How do I classify sorbitol?
Sorbitol other than that of subheading 2905.44 is 3824.60.00.00 at a general (MFN) rate of 4.9%. If the goods are the sorbitol of 2905.44, they are classified in heading 2905 instead.
Source: USITC Harmonized Tariff Schedule, retrieved October 21, 2026.