Other
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: > Other: > Cultured crystals (other than optical elements of chapter 90), weighing not less than 2.5 g each: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified 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.
Lithium Niobate Crystal
Monocrystalline lithium niobate boule, flux-grown, exceeding 2.5 grams, for electro-optic devices. HTS 3824.99.1900 for cultured crystals (non-optical elements). Key material in telecommunications and photonics.
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.