Nepheline Syenite for Fiberglass from Germany
Low-boron nepheline syenite for E-glass fiberglass reinforcement production. Provides stable alumina-silica ratio for fiber durability. HTS 2529.30.0050 'other' nepheline selected for boron <50ppm specification.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• ICP-MS analysis confirming B2O3 <50ppm prevents borosilicate confusion
• Fusion temp 1450-1480°C verified by thermal analysis
• Silica/alumina ratio 4.5-5.0 maintained within natural nepheline range