</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Calcium Silicon Cored Wire Filler from China

Bulk calcium silicon powder used as filler material for manufacturing cored wires in steel treatment stations. While the final cored wire is elsewhere classified, the pure calcium silicon filler remains under HTS 7202.99.20.00 as the base ferroalloy.

Duty Rate — China → United States

42.5%

Rate breakdown

9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China

Import Tips

Clearly document as 'filler alloy' not finished cored wire to maintain 7202 classification

Powder form (<3mm) requires dust explosion risk documentation

Avoid packaging in wire form to prevent reclassification