HTS Chapter 68 · Section XIII
Articles of stone, plaster, cement, asbestos, mica or similar materials
Chapter 68 averages a 1.8% general (MFN) duty across its 68 rated tariff lines, with the steepest line reaching 9%.
- 1.8%
- avg MFN duty
- 9%
- highest line
- 68
- rated tariff lines
- 59%
- enter duty-free
Tariff lines in Chapter 68 by duty-rate band
How the 68 rated lines in this chapter distribute across general (MFN) rate ranges
About HTS Chapter 68
HTS Chapter 68 - Articles of stone, plaster, cement, asbestos, mica or similar materials - organizes 160 tariff classifications in the US Harmonized Tariff Schedule. Of these, 68 carry explicit duty rates at the tariff-line level, meaning importers can look up a specific Column 1 General (MFN) rate for every qualifying shipment. Chapter 68 sits within Section XIII (Stone, Plaster, Cement; Ceramic; Glass), which groups commercially related product categories together.
The average general duty rate across all tariff lines in this chapter is 1.8%, with the highest individual rate reaching 9%. Duty burden varies widely across tariff lines within this chapter, classification precision matters. Below, each line links to its individual detail page showing General, Special (FTA), and Column 2 rates.
Use this chapter page as the entry point for classifying any product that falls under articles of stone, plaster, cement, asbestos, mica or similar materials. The tree below preserves the HTS indentation hierarchy (heading → subheading → tariff line), so you can narrow from broad category to specific 8-10 digit code. All data comes from the US International Trade Commission (USITC) HTS 2026 Basic Edition, the official schedule of import duties used by US Customs and Border Protection.
Chapter 68 At a Glance
| Metric | Value | Notes |
|---|---|---|
| Total tariff classifications | 160 | All headings, subheadings, and tariff lines. |
| Lines with explicit rates | 68 | Tariff lines carrying a Column 1 General duty. |
| Average general rate | 1.8% | Mean MFN rate across rated lines. |
| Highest line rate | 9% | Peak Column 1 General rate within the chapter. |
Source: USITC Harmonized Tariff Schedule 2026 Basic Edition. Computed at last data refresh, see methodology.
Tariff Lines
6801.00.00.00 Setts, curbstones and flagstones, of natural stone (except slate)
t 2.8%
6802 Worked monumental or building stone (except slate) and articles thereof, other than goods of heading 6801; mosaic cubes and the like, of natural stone (including slate), whether or not on a backing; artificially colored granules, chippings and powder, of natural stone (including slate):
6802.10.00.00 Tiles, cubes and similar articles, whether or not rectangular (including square), the largest face of which is capable of being enclosed in a square the side of which is less than 7 cm; artificially colored granules, chippings and powder
kg 4.8%
Other monumental or building stone and articles thereof, simply cut or sawn, with a flat or even surface:
6802.21 Marble, travertine and alabaster:
6802.21.10.00 Travertine
t 4.2%
6802.21.50.00 Other
t 1.9%
6802.23.00.00 Granite
t 3.7%
6802.29 Other stone:
6802.29.10.00 Calcareous stone, other than marble, travertine or alabaster
t 4.9%
6802.29.90.00 Other
t 6%
Other:
6802.91 Marble, travertine and alabaster:
Marble:
6802.91.05.00 Slabs
t 2.5%
6802.91.15.00 Other
t 4.9%
Travertine:
6802.91.20.00 Articles of subheading 6802.21.10 that have been dressed or polished, but not further worked
t 4.2%
6802.91.25.00 Other
t 3.7%
6802.91.30.00 Alabaster
t 4.7%
6802.92.00.00 Other calcareous stone
t 4.9%
6802.93.00 Granite
3.7%
6802.93.00.10 Articles for monumental or building purposes of subheading 6802.23.00, not cut to size, with only one face surface-worked more than simply cut or sawn
t Articles for monumental or building purposes of subheading 6802.23.00, cut to size, with one or more faces or edges surface-worked more than simply cut or sawn:
6802.93.00.20 With a maximum thickness of 1.5 cm
t 6802.93.00.25 With a maximum thickness greater than 1.5 cm but not greater than 7.5 cm
t With a maximum thickness greater than 7.5 cm:
6802.93.00.35 Monuments, bases and markers
t 6802.93.00.60 Other
t 6802.93.00.90 Other
t 6802.99.00 Other stone
6.5%
6802.99.00.30 Monuments, bases and markers
t Other:
Quartzite:
6802.99.00.50 Slabs
t 6802.99.00.70 Other
t 6802.99.00.90 Other
t 6803.00 Worked slate and articles of slate or of agglomerated slate:
6803.00.10.00 Roofing slate
m2 3.3%
6803.00.50.00 Other
t Free
6804 Millstones, grindstones, grinding wheels and the like, without frameworks, for grinding, sharpening, polishing, trueing or cutting, hand sharpening or polishing stones, and parts thereof, of natural stone, of agglomerated natural or artificial abrasives, or of ceramics, with or without parts of other materials:
6804.10.00.00 Millstones and grindstones for milling, grinding or pulping
No. Free
Other millstones, grindstones, grinding wheels and the like:
6804.21.00 Of agglomerated synthetic or natural diamond
Free
6804.21.00.10 Segments for circular sawblades, consisting of diamond agglomerated with metal
No. 6804.21.00.20 Articles consisting of a continuous rim segment of diamond agglomerated with metal, attached to circular plates of steel (whether or not attached to non-steel plates)
No. 6804.21.00.30 Articles consisting of multiple segments of diamond agglomerated with metal, attached to circular plates of steel, without cutting parts (whether or not attached to non-steel plates)
No. 6804.21.00.90 Other
No. 6804.22 Of other agglomerated abrasives or of ceramics:
6804.22.10.00 Bonded with synthetic resins
kg 5¢/kg + 2%
Other:
6804.22.40.00 Abrasive wheels
No. Free
6804.22.60.00 Other
kg Free
6804.23.00.00 Of natural stone
No. Free
6804.30.00.00 Hand sharpening or polishing stones
No. Free
6805 Natural or artificial abrasive powder or grain, on a base of textile material, of paper, of paperboard or of other materials, whether or not cut to shape or sewn or otherwise made up:
6805.10.00.00 On a base of woven textile fabric only
kg Free
6805.20.00.00 On a base of paper or paperboard only
kg Free
6805.30 On a base of other materials:
6805.30.10.00 Articles wholly or partly coated with abrasives, in the form of sheets, strips, disks, belts, sleeves or similar forms
kg Free
6805.30.50.00 Other
kg Free
6806 Slag wool, rock wool and similar mineral wools; exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials; mixtures and articles of heat-insulating, sound-insulating or sound-absorbing mineral materials, other than those of heading 6811 or 6812, or of chapter 69:
6806.10.00 Slag wool, rock wool and similar mineral wools (including intermixtures thereof), in bulk, sheets or rolls
3.9%
6806.10.00.10 Accoustical pads and boards
m2 Other:
6806.10.00.20 Batts, not exceeding 61 cm in width
m2 6806.10.00.40 Batts, exceeding 61 cm in width
m2 6806.10.00.60 Pipe coverings
m2 6806.10.00.90 Other
m2 6806.20.00.00 Exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials (including intermixtures thereof)
kg Free
6806.90.00 Other
Free
6806.90.00.10 Accoustical pads and boards
m2 Other:
6806.90.00.20 Of molded calcium silicate
m2 6806.90.00.90 Other
kg 6807 Articles of asphalt or of similar material (for example, petroleum bitumen or coal tar pitch):
6807.10.00.00 In rolls
kg Free
6807.90.00 Other
2.7%
6807.90.00.10 Articles of a kind used for roofing or siding
kg 6807.90.00.50 Other
kg 6808.00.00.00 Panels, boards, tiles, blocks and similar articles of vegetable fiber, of straw or of shavings, chips, particles, sawdust or other waste, of wood, agglomerated with cement, plaster or other mineral binders
m2, kg Free
6809 Articles of plaster or of compositions based on plaster:
Boards, sheets, panels, tiles and similar articles, not ornamented:
6809.11.00 Faced or reinforced with paper or paperboard only
Free
6809.11.00.10 Of gypsum plaster
kg, m2 6809.11.00.80 Other
kg, m2 6809.19.00.00 Other
m2 3%
6809.90.00.00 Other articles
kg Free
6810 Articles of cement, of concrete or of artificial stone, whether or not reinforced:
Tiles, flagstones, bricks and similar articles:
6810.11.00 Building blocks and bricks
3.2%
6810.11.00.10 Containing by weight more than 70 percent magnesia, expressed as MgO, with carbon content ranging from trace amounts to less than 30 percent, and chemically bonded by resin or pitch
m2 6810.11.00.70 Other
t 6810.19 Other:
Floor and wall tiles:
6810.19.12.00 Of stone agglomerated with binders other than cement
m2 4.9%
6810.19.14.00 Other
m2 9%
6810.19.50.00 Other
t 3.9%
Other articles:
6810.91.00.00 Prefabricated structural components for building or civil engineering
t Free
6810.99.00 Other
Free
Agglomerated quartz slabs of the type used for countertops:
6810.99.00.20 In slabs of rectangular shape, with a length of 3 m or more and a width of 1.25 m or more
m2 6810.99.00.40 Other
m2 6810.99.00.80 Other
No. 6811 Articles of asbestos-cement, of cellulose fiber-cement or the like:
6811.40.00.00 Containing asbestos
kg Free
Not containing asbestos:
6811.81.00.00 Corrugated sheets
kg Free
6811.82.00.00 Other sheets, panels, tiles and similar articles
kg Free
6811.89 Other articles:
6811.89.10.00 Tubes, pipes and tube or pipe fittings
kg Free
6811.89.90.00 Other articles
kg Free
6812 Fabricated asbestos fibers; mixtures with a basis of asbestos or with a basis of asbestos and magnesium carbonate; articles of such mixtures or of asbestos (for example, thread, woven fabric, clothing, headgear, footwear, gaskets), whether or not reinforced, other than goods of heading 6811 or 6813:
6812.80 Of crocidolite:
6812.80.10.00 Footwear
kg 8.3%
6812.80.90.00 Other
kg Free
Other:
6812.91 Clothing, clothing accessories, footwear and headgear
6812.91.10.00 Footwear
kg 8.3%
6812.91.90.00 Other
kg Free
6812.99 Other:
6812.99.10.00 Paper, millboard and felt
m2 Free
6812.99.20.00 Compressed asbestos fiber jointing, in sheets or rolls
m2 Free
6812.99.90.00 Other
m2 Free
6813 Friction material and articles thereof (for example, sheets, rolls, strips, segments, discs, washers, pads), not mounted, for brakes, for clutches or the like, with a basis of asbestos, of other mineral substances or of cellulose, whether or not combined with textile or other materials:
6813.20.00 Containing asbestos
Free
Brake linings and pads:
6813.20.00.10 Articles for use in civil aircraft
No. 6813.20.00.15 Other
No. Other:
6813.20.00.20 Articles for use in civil aircraft:
No. 6813.20.00.25 Other
No. Not containing asbestos:
6813.81.00 Brake linings and pads
Free
6813.81.00.10 Articles for use in civil aircraft, with a basis of mineral substances
No. 6813.81.00.50 Other
No. 6813.89.00 Other
Free
6813.89.00.10 Articles for use in civil aircraft, with a basis of mineral substances
No. 6813.89.00.50 Other
No. 6814 Worked mica and articles of mica, including agglomerated or reconstituted mica, whether or not on a support of paper, paperboard or other materials:
6814.10.00.00 Plates, sheets and strips of agglomerated or reconstituted mica, whether or not on a support
kg 2.7%
6814.90.00.00 Other
kg 2.6%
6815 Articles of stone or of other mineral substances (including carbon fibers, articles of carbon fibers and articles of peat), not elsewhere specified or included:
Carbon fibers; articles of carbon fibers for non-electrical uses; other articles of graphite or other carbon for non-electrical uses:
6815.11.00.00 Carbon fibers
kg Free
6815.12.00.00 Fabrics of carbon fibers
kg Free
6815.13.00.00 Other articles of carbon fibers
kg Free
6815.19.00.00 Other
kg Free
6815.20.00.00 Articles of peat
kg Free
Other articles:
6815.91.00 Containing magnesite, magnesia in the form of periclase, dolomite including in the form of dolime, or chromite
Free
6815.91.00.11 Containing by weight more than 70 percent magnesia, expressed as MgO, with carbon content ranging from trace amounts to less than 30 percent, and chemically bonded by resin or pitch
kg 6815.91.00.71 Other
kg 6815.99 Other:
6815.99.20.00 Talc, steatite and soapstone, cut or sawed, or in blanks, crayons, cubes, disks or other forms
kg Free
6815.99.41 Other
Free
6815.99.41.10 Containing by weight more than 70 percent magnesia, expressed as MgO, with carbon content ranging from trace amounts to less than 30 percent, and chemically bonded by resin or pitch
kg 6815.99.41.70 Other
kg I. GOODS OF SILICEOUS FOSSIL MEALS OR OF SIMILAR SILICEOUS EARTHS, AND REFRACTORY GOODS
Frequently Asked Questions
What does HTS Chapter 68 cover? ▼
HTS Chapter 68 covers Articles of stone, plaster, cement, asbestos, mica or similar materials. It contains 160 individual tariff classifications, of which 68 have specified duty rates. This chapter falls under Section XIII (Stone, Plaster, Cement; Ceramic; Glass).
What is the average tariff rate for Chapter 68? ▼
The average general (MFN) duty rate across all tariff lines in Chapter 68 is 1.8%. The highest individual rate in this chapter is 9%. Actual duty on a specific product depends on its precise HTS classification.
How do I find the correct HTS code for my product? ▼
Browse the tariff lines listed below organized by heading and subheading. Each item with an HTS number links to its full detail page showing general, special, and Column 2 duty rates. For complex classifications, consult a licensed customs broker or contact US Customs and Border Protection (CBP).
Are there any duty-free items in Chapter 68? ▼
Yes, many chapters contain items with a "Free" general rate, meaning no duty is assessed for imports from most-favored-nation countries. Look for items marked "Free" in the tariff lines table below. Additional preferential rates may also apply under free trade agreements.
Where does PlainTariff get its tariff data? ▼
All tariff data comes from the U.S. International Trade Commission (USITC) Harmonized Tariff Schedule (HTS) 2026 Basic Edition, the official schedule of US import duties.
Learn More About Tariffs
Next steps
Find the exact rate for your product within Chapter 68.
- Click any tariff line above to see its General, Special, and Column 2 rates. Tariff lines above
- Estimate the landed duty cost on a shipment in this chapter. Tariff calculator
- Search the full schedule by product description. Search HTS
The chapter average is an orientation only, duty is set per tariff line, and Special preferential rates may apply to qualifying origins.
Related
Sources: U.S. International Trade Commission Harmonized Tariff Schedule (2026 Basic Edition) and FAO FAOSTAT Trade: Crops and Livestock. See our methodology for how figures are computed.
Every figure on PlainTariff is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.