9902.01.27
Dioxosilane (Silicon dioxide amorphous) (CAS No. 7631-86-9) entirely spherical micro-spheres of mean particle size of between 0.007 and 0.020 mm, uniform particle size with a uniformity coefficient of 1.65 or less, trace metal impurities less than 70 ppm, specific electrical resistance of 50,000 Ohm cm (provided for in subheading 2811.22.10)
Duty rates
- General (MFN)
- Free
- Special programs
- No change
- Column 2 (non-MFN)
- No change
“General” applies to imports from most trading partners under normal trade relations. “Special” lists products eligible for reduced or duty-free treatment under programs like GSP, USMCA, CAFTA-DR, or individual free-trade agreements. “Column 2” applies to imports from countries without normal trade relations (currently Cuba and North Korea).
Chapter 99
Temporary legislation; temporary modifications (Section XXII — Special classification and temporary provisions)