Synthetic Fused Quartz Process Gas Tubes from Mexico
Unworked synthetic fused silica tubes for delivering process gases in semiconductor and solar cell manufacturing. Flame-polished ends acceptable if pre-annealing per chapter notes. HTS 7002.31.00.00 covers these unworked tubes.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Specify electric fusion process vs flame fusion for synthetic quartz verification
• Particle contamination specs (<10 particles >0.5μm) prove clean process suitability
• Bulk packaged lengths ok; cut-to-length service voids unworked status