Serpentinite Mica Powder
Serpentinite mica powder is a finely ground mineral product derived from mica deposits hosted in serpentinite rock. It is used as a specialty filler in polymers and falls under tariff item 2525.20.00 because it is mica in powder form, processed only by mechanical grinding without chemical alteration.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the mica is in crude form or split into sheets rather than powdered
Crude mica and mica splittings are classified separately from mica powder under the same heading.
If the product is mica waste rather than powder
Mica waste has its own tariff item distinct from powder, even if finely ground.
If the powder is mixed with other chemicals for a specific industrial use
Prepared binders or fillers with added substances fall outside Chapter 25.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the powder is not mixed with other substances or chemically treated, as that could shift classification
• Declare the net weight in kilograms on customs documents
• Keep supplier documentation showing the mica origin and processing method in case CBSA requests verification
Related Products under Tariff item 2525.20.00
Dry Ground Muscovite Mica Powder 325 Mesh
Dry ground muscovite mica powder, 325 mesh, used as an extender in oil-based paints and joint compounds. The fine particle size and pure mica composition qualify it as mica powder under tariff item 2525.20.00.
Mica Powder for Pearl Pigment
High-purity mica powder prepared as a substrate for pearlescent effects in automotive paints. It remains mica powder under tariff item 2525.20.00 because it is not yet coated with titanium dioxide or other substances.
Micronized Phlogopite Mica Powder
Micronized phlogopite mica powder with a particle size of 5-10 microns, used in injection molding compounds and cosmetics. The extreme fineness qualifies it as mica powder under tariff item 2525.20.00.
Muskovite Mica Powder
Finely ground muscovite mica powder, a potassium aluminum silicate mineral, used as a filler in paints, plastics, and cosmetics. It qualifies as mica powder under tariff item 2525.20.00.
Phlogopite Mica Powder
Phlogopite mica ground into a fine powder, known for its heat resistance, used in electrical insulation and rubber compounds. It is classified as mica powder under tariff item 2525.20.00.
Synthetic Fluorphlogopite Mica Powder
Synthetic fluorphlogopite mica powder produced in the laboratory, offering superior thermal stability for high-end electronics and pearlescent pigments. Despite being synthetic, it is classified as mica powder under tariff item 2525.20.00.