Fused Silica Thermocouple Protection Tube from China
Unworked tube-like rod of fused silica designed to sheath thermocouples in high-temperature furnaces. Classified in HTS 7002.20.10.00 as it is an unworked rod or tube of fused silica, not further processed before annealing.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Include thermal expansion data in documentation to prove high-purity fused silica suitable for 1000°C+ applications
• Avoid declaring as 'finished tube' to prevent reclassification; specify 'unworked rod stock'
• Check for exemptions under HTSUS for scientific instrument components if end-use qualifies