Fused Silica Glass Tubes for Semiconductor Processing from Mexico
Unworked fused silica tubes designed for high-purity environments in semiconductor diffusion furnaces and wafer processing. HTS 7002.39.00 includes these as other unworked tubes, leveraging the chapter definition of fused quartz as glass. Critical for thermal stability in chip manufacturing.
Duty Rate — Mexico → United States
16%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide SEMI-standard purity specs (e.g
• OH content) to validate classification and tariff treatment
• Ship in cleanroom packaging but note it's protective, not a worked coating per chapter notes