Harmonized System
U.S. imports of Ceramic Bricks, Blocks & Tiles of Siliceous Fossil Meals and Earths (HS 690100) totaled $218K in August 2026, imported from 19 countries.
Importers of Ceramic Bricks, Blocks & Tiles of Siliceous Fossil Meals and Earths paid $32K in duties in August 2026, an average duty rate of 14.61% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Ceramic Bricks, Blocks & Tiles of Siliceous Fossil Meals and Earths imports of $218K in August 2026 ran 26% below the year-to-date monthly average of $294K.
Last updated: August 2026 dataCeramic goods — including bricks, blocks, and tiles — manufactured from siliceous fossil meals such as kieselguhr (diatomite) or tripolite are classified under a single tariff line, 6901000000. These highly porous, low-density materials are prized for thermal insulation in industrial furnaces, kilns, and filtration systems, where their siliceous microstructure provides both heat resistance and low thermal mass. China leads US imports under this heading, with Italy and Poland also significant sources. Because these products are fired ceramic goods, they are distinct from unfired mineral articles in Chapter 68, and importers should confirm that the siliceous fossil meal content — rather than conventional clay or alumina — is the primary constituent.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
11 import shipments a month
Heading 6901 specifically covers ceramic goods made from siliceous fossil meals (diatomite, kieselguhr, tripolite) or similar siliceous earths. Conventional refractory bricks made from alumina, magnesia, or fireclay classify under heading 6902. The key classification factor is the primary raw material: if the brick's structure derives from the porous siliceous fossil material rather than a conventional refractory mineral, heading 6901 applies. Manufacturer material certifications and raw material composition data are the most useful supporting documents.
Chinese-origin ceramic goods under this heading may be subject to Section 301 tariffs. Importers should verify the current applicability of Section 301 measures to tariff line 6901000000 before shipment, as coverage has evolved over successive rounds of trade actions. Italy and Poland, which are also leading suppliers, are not subject to Section 301 measures.
Trade Directory
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Subheading 1 of 1 in heading 6901
Subheading 690100 · $218K of $218K
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 |
|---|---|---|---|---|---|
| 6901000000 | Brcks Blcks Tls/Cermc Gds of Slcs Fosl Mls&earths | $218K | 14.61% | 100.00% | $32K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 6901000000 | Brcks Blcks Tls/Cermc Gds of Slcs Fosl Mls&earths | $257K |
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
$218KYoY · free account
Exports
$257KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $3.5M of Ceramic Bricks, Blocks & Tiles of Siliceous Fossil Meals and Earths and exported $3.5M.
Fewer than 6 of the last 12 months reported trade, or the latest month was under $500K; the trend chart is not shown for thin series.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
China and United Kingdom together supply 82% of it. China pays 26.2% duty; Egypt 0.0%.
customs district
destination
entry
rate provision · imports
duty collected equals 14.61% of imports for consumption.