2849.10.00.00/Calcium Carbide Lumps/Mexico

Calcium Carbide Lumps from Mexico

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 — Mexico → United States

11.8%

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

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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