HS Code for Millstones

Millstones are classified under HS code 6804.10. Chapter 68 covers articles of stone, plaster, cement, asbestos, mica, or similar materials. Heading 6804 specifically includes millstones, grindstones, grinding wheels, and the like, without frameworks, used for milling, grinding, or pulping. Subheading 6804.10 is dedicated to those used for milling, grinding, or pulping. These items are typically made of natural stone, agglomerated natural or artificial abrasives, or ceramics. The classification is based on the material composition and the specific industrial application. Even though these are parts of machinery, Note 1 to Chapter 84 specifically excludes articles of Chapter 68, meaning these stones must be classified in 6804 rather than as machinery parts in Chapter 84. This follows the General Rules of Interpretation which prioritize the material-based chapter when a specific exclusion exists in the machinery chapter.

Products Included

• Stones for flour mills
• Pulping stones for the paper industry
• Grinding stones for grain processing
• Natural stone millstones for traditional milling
• Agglomerated abrasive stones for industrial pulping

Common Misclassification

Millstones are frequently misclassified under 8437.90 as parts of machinery for the milling of cereals. While they are indeed used in such machinery, Section XVI Note 1(a) specifically excludes millstones and similar articles of Chapter 68. Therefore, the material composition (stone or abrasive) dictates the classification in 6804. Another potential error is 6805, which covers natural or artificial abrasive powder or grain on a base of textile material, paper, or cardboard. Millstones are solid, rigid articles and do not have a flexible backing, distinguishing them from the coated abrasives found in 6805.

FAQ

What is the HS code for Millstones?

The HS code for millstones and grindstones for milling, grinding, or pulping is 6804.10.

Are synthetic millstones classified differently than natural ones?

No, both natural stone and agglomerated artificial abrasive millstones are classified under heading 6804, provided they are used for milling, grinding, or pulping.