U.S. exports of Pumice Stone (HS 251310) totaled $510K in August 2026.
Importers of Pumice Stone paid $10K in duties in August 2026, an average duty rate of 11.43% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Pumice Stone imports of $90K in August 2026 ran 59% below the year-to-date monthly average of $219K.
Last updated: August 2026 dataPumice stone — a highly vesicular volcanic glass — is traded in two commercial forms under HTS heading 2513: crude or crushed pumice (2513100010), used in construction aggregates, horticulture, and abrasive blasting, and processed pumice (2513100080), which has been shaped, graded, or otherwise refined for personal care, cosmetic, or precision abrasive applications. The distinction between crude/crushed and further-processed forms is the key classification boundary, and importers of cosmetic-grade pumice blocks or shaped pieces should ensure their product is correctly assigned to the processed line.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
17 import shipments a month
Crude or crushed pumice (2513100010) covers material in its natural extracted state or broken into irregular pieces, including sized aggregate. Pumice that has been shaped into blocks, sticks, or other defined forms — such as cosmetic foot-care stones or precision abrasive tools — is classified as 'except crude or crushed' under 2513100080, reflecting the additional manufacturing step.
Crude and crushed pumice serves the construction industry as a lightweight aggregate, the horticultural sector as a soil amendment and drainage medium, and the industrial sector as an abrasive blasting media. Processed pumice blocks and sticks are used in personal care (foot exfoliation), textile stonewashing (denim finishing), and specialty surface preparation applications.
Subheading 2 of 2 in heading 2513
Subheading 251310 · $510K of $2.1M
ImportsExports
Imports
$90KYoY · free account
Exports
$510KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $3.3M of Pumice Stone and exported $6.0M.
Through August 2026. Source: U.S. Census Bureau.
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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 |
|---|---|---|---|---|---|
| 2513100080 | Pumice, Except Crude or Crushed | $83K | 12.51% | 44.01% | $10K |
| 2513100010 | Pumice, Crude or in Irreg Pcs Incl Crushed | $8K | 0.00% | 0.00% | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2513100010 | Pumice, Crude or in Irreg Pcs Incl Crushed | $343K |
| 2513100080 | Pumice, Except Crude or Crushed | $167K |
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.
Exports · August 2026
destination
Canada and Japan together take 40% of it.
customs district
origin
entry
rate provision · imports
59.8% enters free of duty; duty collected equals 11.43% of imports for consumption.