U.S. imports of Millstones & Grindstones for Milling, Grinding or Pulping (HS 680410) totaled $1.5M in September 2026, imported from 27 countries.
Importers of Millstones & Grindstones for Milling, Grinding or Pulping paid $214K in duties in September 2026, an average duty rate of 14.75% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Millstones & Grindstones for Milling, Grinding or Pulping imports of $1.5M in September 2026 ran 15% above the year-to-date monthly average of $1.3M.
Last updated: September 2026 dataNatural and composite millstones and grindstones used in industrial milling, grinding, and pulping operations are consolidated under a single 10-digit line, 6804100000. China is the leading US supplier, with Italy and Mexico also notable sources. These articles serve grain milling, mineral processing, and pulp-and-paper industries, and their classification turns on the distinction between stones used for milling or pulping — covered here — and abrasive grinding wheels used for sharpening or surface finishing, which fall under 6804.2x. The functional end use of the stone, not its material composition, is the primary classification criterion.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
66 import shipments a month
The key criterion is functional end use: stones designed and used for milling grain, grinding minerals, or pulping fibrous materials classify under 6804.10, while wheels and stones used for cutting, sharpening, or surface-finishing workpieces classify under 6804.21 or 6804.22. Product literature, technical specifications, and the importer's end-use documentation all support the classification determination.
Replacement segments that are identifiable as parts of millstones or grindstones for milling or pulping are generally classified with the complete article under 6804.10 unless a more specific parts provision applies elsewhere in the schedule. Importers should confirm with a licensed customs broker when the segment is a standalone abrasive article that could independently classify under a different heading.
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Subheading 4 of 5 in heading 6804
Subheading 680410 · $1.5M of $46.4M
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 6804100000 | Millstones and Grindstones for Millng Grndg Plpng | $2.2M | 13.34% | 97.33% | $288K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 6804100000 | Millstones and Grindstones for Millng Grndg Plpng | $1.5M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$1.5MYoY · free account
Exports
—YoY · free account
12-mo low · imports
Low · free accountOver the twelve months to September 2026, the U.S. imported $13.1M of Millstones & Grindstones for Milling, Grinding or Pulping.
Through September 2026 · exports 11 of 12 months reported. Source: U.S. Census Bureau.
Imports · September 2026
origin
Israel and China together supply 69% of it. China pays 37.5% duty; Mexico 0.8%.
customs district
destination
rate provision · imports
12.0% enters free of duty; duty collected equals 14.75% of imports for consumption.