Doped Luminescent ZnS Powder 99.99% Base Purity
Zinc sulfide powder with a 99.99% base purity, lightly doped to achieve specific emission wavelengths for display applications. The dopant level is minimal and does not alter the chemically defined nature of the zinc sulfide, keeping it classifiable under tariff item 2830.90.00.
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 dopant level makes the product a prepared luminophore
Chapter 28 excludes luminophores of heading 32.06.
If the product is a mixture of multiple compounds
Mixtures not meeting Chapter 28 chemical definition criteria fall under Chapter 38.
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
• Provide a detailed specification sheet showing the dopant concentration to demonstrate it remains a chemically defined compound
• If the dopant exceeds trace levels, consult CBSA to confirm classification
• Maintain records of the manufacturing process to support the tariff classification
Related Products under Tariff item 2830.90.00
99.99% Pure Luminescent ZnS for OLED Displays
Ultra-pure zinc sulfide powder with a purity of at least 99.99%, designated for use as a luminescent material in OLED display manufacturing. This chemically defined compound of zinc and sulfur falls under tariff item 2830.90.00 as a sulphide other than those specifically enumerated elsewhere in Chapter 28.
Cadmium Sulfide for Glass Coloring
Cadmium sulfide specifically for producing stable yellow colors in glass tableware and decorative bottles. This chemically defined sulphide is classifiable under tariff item 2830.90.00 as an other sulphide, as it is not a finished pigment preparation.
Cadmium Sulfide Luminescent Grade
Specially prepared cadmium sulfide activated for phosphorescence in glow-in-the-dark paints and safety markings. While activated, it may still be classifiable under tariff item 2830.90.00 if the activation does not render it a prepared luminophore of heading 32.06.
High-Purity Zinc Sulfide (99.99%) for Thin Films
Ultra-pure zinc sulfide granules for physical vapor deposition (PVD) in optical thin films. This chemically defined sulphide is classifiable under tariff item 2830.90.00, as it is not in a worked form excluded by Chapter 28 notes.
High-Purity ZnS Luminescent Crystals (99.99%)
Crystalline zinc sulfide of luminescent grade with purity exceeding 99.99%, used as a scintillator material in radiation detection equipment. As a chemically defined inorganic sulphide, it is classifiable under tariff item 2830.90.00, provided it is not in a worked form excluded by Chapter 28 notes.
Luminescent Grade Zinc Sulfide Powder (99.99% Purity)
High-purity zinc sulfide powder, luminescent grade with 99.99% or more purity, used in the production of phosphors for displays and lighting. This chemically defined compound is classifiable under tariff item 2830.90.00 as a sulphide other than those specifically listed elsewhere.