HS Code for Natural Stone Grinding Wheels
The HS Code for natural stone grinding wheels is 680423. The MFN duty rate for importing to the US is Free.
| HS Code (6-digit) | 680423 |
|---|---|
| US HTS (10-digit) | 6804230000 |
| EU CN Code (8-digit) | 68042300 |
| US Duty Rate (MFN) | Free |
| EU Duty Rate (MFN) | 1.7% |
| Chapter | 68 |
| Heading | 6804 |
| Last Updated | 2026-05 |
Description
Millstones, grindstones, grinding wheels, of natural stone
HS Code 6804.23 covers millstones and grinding wheels made of natural stone, which enter the United States duty-free.
Frequently Asked Questions
What additional duties or fees might apply when importing natural stone grinding wheels under HTS 680423, beyond the basic tariff rate?
Importers of these products often incur Countervailing Duties (CVD) if the foreign manufacturer received government subsidies, as stone product industries are frequently subsidized. Additionally, goods may be subject to harbor maintenance fees and merchandise processing fees, which are fixed costs per entry regardless of the product's declared value.
What regulatory compliance documentation is required when importing natural stone grinding wheels classified under HTS 6804.23?
Importers must provide a detailed commercial invoice and a packing list, and ensure the product complies with the Consumer Product Safety Improvement Act (CPSIA) if for consumer use, which may require general compliance certification. For grinding wheels containing bonded abrasives, you should also verify if they are subject to specific standards from OSHA or the American National Standards Institute (ANSI) that affect import eligibility.
What are the specific packaging requirements for shipping natural stone grinding wheels under HTS 680423 to prevent damage?
Due to their weight and brittle nature, natural stone grinding wheels must be crated on palletized, shock-absorbent platforms with internal blocking and bracing to immobilize the product. The packaging must be clearly marked with 'Fragile' and 'Heavy' labels, and the gross weight per crate should not exceed the carrier's limits for safe manual or mechanical handling.
Seasonal Import Patterns for Natural Stone Grinding Wheels
Imports under HTS 6804.23.0000 show a mild seasonal pattern, with a consistent peak in the second quarter (April-June) in recent years. U.S. import data indicates a 15-Free increase in volume during this period compared to the annual average. This aligns with increased industrial and construction activity in the spring and summer months, driving demand for maintenance and tooling supplies. The late fall and winter months typically see a corresponding dip in import volumes.
Compliance Notes for Natural Stone Grinding Wheels
Importers must ensure grinding wheels containing bonded diamond or cubic boron nitride (CBN) abrasives are correctly classified under HTS 6804.21 or 6804.22, as these are subject to different duty rates and potential antidumping/countervailing duty (AD/CVD) orders. Shipments are subject to FDA regulation (21 CFR 170-199) if used in food processing equipment, requiring supplier documentation on material safety. For wheels containing asbestos, a Toxic Substances Control Act (TSCA) certification is mandatory. Always verify the country of origin marking is permanently and legibly affixed to the product or packaging, as per 19 CFR 134.
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