Quartz Crystal Boule

Hydrothermal synthetic quartz crystal boule >2.5g for frequency control applications. HTS 3824.99.1900 covers such cultured crystals excluding finished optics. Raw material for oscillator blanks.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%+35.0%41.5%
🇲🇽Mexico6.5%+10.0%16.5%
🇨🇦Canada6.5%+10.0%16.5%
🇩🇪Germany6.5%+10.0%16.5%
🇯🇵Japan6.5%+10.0%16.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

7103.10.40.00Lower: 28% vs 41.5%

If natural unworked quartz

Natural precious stones in Chapter 71.

8541.60.00Lower: 35% vs 41.5%

If cut into finished crystal units

Mounted or processed for electronic function in Chapter 85.

3824.99Same rate: 41.5%

If for smaller boules

Below minimum weight threshold.

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Import Tips & Compliance

• Distinguish from natural quartz (7103) with synthetic growth certificates

• Specify AT-cut orientation if relevant, but import uncut to stay in 3824

Related Products under HTS 3824.99.19.00

Silicon Ingot for Semiconductors

High-purity monocrystalline silicon ingot, cultured via Czochralski method, weighing more than 2.5 grams, used as raw material for wafer slicing. Falls under HTS 3824.99.1900 for cultured crystals not specified elsewhere or as optical elements. Essential for electronics industry substrates.

Gallium Arsenide Ingot

LEC-grown gallium arsenide single crystal ingot over 2.5g for LED and solar cell substrates. Fits HTS 3824.99.1900 as cultured crystal preparation not elsewhere specified. Semiconductor compound with high electron mobility.

KY Crystal Ingot

Potassium Titanyl Phosphate (KTP) single crystal ingot, flux method grown, over 2.5g for nonlinear optics. Classified HTS 3824.99.1900 as cultured crystal not optical element. Used in frequency doubling lasers.

Synthetic Sapphire Boule

A large single-crystal synthetic sapphire boule weighing over 2.5 grams, used in electronics and optics manufacturing. Classified under HTS 3824.99.1900 as cultured crystals (excluding optical elements of Chapter 90) that are not elsewhere specified. These are grown via methods like Czochralski process for substrate applications.

YAG Crystal Boule

Yttrium Aluminum Garnet (YAG) single crystal boule, grown by Czochralski process, over 2.5 grams, for laser rod production. HTS 3824.99.1900 applies to such cultured crystals excluding Chapter 90 optics. Used in solid-state lasers and scintillators.

Grown Diamond Substrate

CVD-grown single-crystal diamond substrate weighing more than 2.5g, used in electronics heat sinks. Classified in HTS 3824.99.1900 as cultured crystals not elsewhere specified. Synthetic lab-grown for high thermal conductivity applications.