Slag Wool Bulk Fiber from China
Loose slag wool fibers derived from blast furnace slag, supplied in bulk for use in insulation mixes or as filler in construction. HTS 6806.10.00 covers slag wool and similar mineral wools explicitly in bulk form.
Duty Rate — China → United States
41.4%
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
• Label as 'bulk' only if not compressed into sheets; otherwise, it may be 6811
• Include safety data sheets for fiber diameter to prove non-asbestos compliance
• Check for intermixtures; if over 50% other minerals, classification may shift