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HSChapter 68
U.S. imports of millstones, grindstones & grinding wheels of natural stone (HS 680423) totaled $1.7M in April 2026, traded with 15 countries.
Last updated: April 2026 dataCarved or shaped from quarried stone rather than manufactured bonded composites, natural-stone grinding and milling tools occupy a distinct niche in food processing (grain milling), artisan stonework, and traditional craft industries. All US imports under this heading enter under a single 10-digit line, 6804230000, simplifying classification but requiring careful material verification to confirm the article is genuinely natural stone rather than an agglomerated product. Mexico is the leading supplier to the US market, with Japan and China also notable sources. Distinguishing natural-stone articles from synthetic-bonded counterparts is the most common classification challenge at entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
A material composition certificate or manufacturer's specification sheet identifying the quarried stone type (e.g., sandstone, granite, novaculite) is the most reliable supporting document. CBP may request laboratory analysis if the composition is ambiguous, since agglomerated products with natural-stone grit can superficially resemble solid natural-stone articles.
Yes. Traditional grain milling for artisan flour production, certain Japanese culinary knife-sharpening applications, and heritage stonecutting trades often specify natural stone for its particular cutting characteristics and surface finish. These niche demand segments sustain import flows even where synthetic abrasives dominate industrial use.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | $1.7M | $988K | -$692K |
| CANADA | -- | $54K | +$54K |
| JAPAN | $18K | -- | -$18K |
| UNITED KINGDOM | -- | $7K | +$7K |
| INDIA | $5K | -- | -$5K |
Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 6804230000 | OTHR MILLSTNES GRNDSTNS ETC OF NATURAL STONE | $1.7M | 6.83% | $2K |
OTHR MILLSTNES GRNDSTNS ETC OF NATURAL STONE
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 6804230000 | OTHR MILLSTNES GRNDSTNS ETC OF NATURAL STONE | $1.1M |
OTHR MILLSTNES GRNDSTNS ETC OF NATURAL STONE
72.4K no
OTHR ARTS NESOI OF CMNT ETC
HS 681099
MARBLE, TRAVERTINE AND ALABASTER, WORKD, NESOI
HS 680291
WORDK MONUMENTAL OR BUILDING STONE, NESOI
HS 680299
GRANITE, NESOI
HS 680293
ABRASIVES ON A BASE MATERIAL OTH THN FABRC O PAPER
HS 680530
ARTICLES OF ASPHALT OR SIMILAR MATERIALS IN ROLLS
HS 680710
| State | Imports | Exports | Balance |
|---|---|---|---|
| Texas | $1.4M | $8K | -$1.4M |
| Massachusetts | $277K | $311K | +$34K |
| Ohio | -- | $348K | +$348K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| HILDAGO, TX | $1.7M | $315K | -$1.4M |
| LAREDO, TX | -- | $545K | +$545K |
| NEW ORLEANS, LA | -- | $95K | +$95K |