2849.10.00.00/Calcium Carbide Lumps/China

Calcium Carbide Lumps from China

Calcium carbide lumps (CaC2) are irregular chunks produced by reacting calcium oxide with carbon in an electric arc furnace, used primarily as a raw material for acetylene gas generation. This product falls under HTS 2849.10.00.00 as it is a chemically defined carbide of calcium, meeting Chapter 28 definitions for inorganic compounds. Typically packaged in 50-100 kg steel drums for industrial transport.

Duty Rate — China → United States

36.8%

Rate breakdown

9903.03.0110%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
9903.88.0325%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)
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Import Tips

• Verify purity levels (>80% CaC2) via certificate of analysis to confirm classification under chemically defined carbides; impurities may shift to 2849.90

• Obtain proper hazardous material shipping documents (UN1402) as it reacts with water to produce flammable acetylene gas

• Check destination country restrictions on carbide imports due to environmental concerns over phosphine emissions during use