Heading 2826

Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts

8 declarable lines

Heading 2826 covers inorganic fluorine salts: fluorides, fluorosilicates, fluoroaluminates and other complex fluorine salts. It is split first by type, with a separate line for aluminum fluoride, a group for other fluorides divided by cation (ammonium, sodium, other), a line for synthetic cryolite, and a residual group for fluorosilicates and other complex salts. Most lines carry low or free general (MFN) rates.

Products in this heading

Aluminum fluoride
Ammonium fluoride
Sodium fluoride
Synthetic cryolite (sodium hexafluoroaluminate)
Sodium fluorosilicate
Potassium fluorosilicate
Lithium hexafluorophosphate for battery electrolytes
Fluoroaluminate salts

How to choose the right subheading

Decide whether the product is a fluoride or a fluorosilicate, fluoroaluminate or other complex fluorine salt.
For plain fluorides, identify the cation: aluminum has its own line, ammonium and sodium have their own lines, everything else goes to the residual fluoride line.
Check whether the product is sodium hexafluoroaluminate (synthetic cryolite), which has a dedicated line.
For fluorosilicates, check whether the salt is of sodium or potassium; other fluorosilicates and complex salts fall in the residual group.
Check whether the product is lithium hexafluorophosphate, which has its own statistical line inside the residual group.

Often confused with

Hydrofluoric acid (hydrogen fluoride)
It is an inorganic acid, not a salt, so it falls in the acids heading.
Heading 2811
Fluorine gas
The free element is classified with the halogens, not with its salts.
Heading 2801
Sodium chloride
Chlorides sit in heading 2827, not with the fluorides.
Heading 2827
Aluminum oxide
The oxide of aluminum is classified separately from its fluoride.
Heading 2818

Frequently asked questions

What is the HTS code for aluminum fluoride?

Aluminum fluoride is classified under 2826.12.00.00. Its general (MFN) rate is Free.

What is the duty on sodium fluoride?

Sodium fluoride falls under 2826.19.20.00. The general (MFN) rate is 3.7%.

How do I classify synthetic cryolite?

Sodium hexafluoroaluminate, known as synthetic cryolite, is classified under 2826.30.00.00 at a general (MFN) rate of Free. Lithium hexafluorophosphate, by contrast, goes under 2826.90.90.10 at 3.1%.

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.