Analysis
HTS 2513.20.10 covers crude or in irregular pieces under heading 2513 (pumice; emery; natural corundum, natural garnet and other natural abrasives, whether or…).
There is no general-rate duty on this line, which puts it with roughly 91% of the 78 tariff lines in chapter 25 that are also free. Free here means free of the base duty only: origin-specific Chapter 99 duties such as Section 301 can still be owed.
The other lines in the same group are 2513.10.00 (pumice; emery; natural corundum, natural garnet and other…, duty-free) and 2513.20.90 (emery, natural corundum, natural garnet and other natural…, duty-free).
Census statistics map these goods to NAICS 21239 (Other Nonmetallic Mineral Mining and Quarrying), an industry of 236 US establishments employing 10,238 people, the industry a domestic producer of these goods reports under.
All 2 neighbouring lines carry the same duty-free rate, so a borderline choice between them changes the statistics reported, not the duty paid.
Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 2513.10.00 | Pumice; emery; natural corundum, natural garnet and other natural abrasives, whether or not heat-treated: pumice stone | Free |
| 2513.20.90 | Emery, natural corundum, natural garnet and other natural abrasives: other | Free |