Base tariff columnsBase tariff columns
Column rates from the USITC HTS export. The column that applies depends on origin and trade-program eligibility.
| General (MFN) | Set per subheading |
|---|---|
| Special | — |
| Other (Column 2) | — |
Official source: USITC Harmonized Tariff Schedule. Duty at entry is determined by US Customs and Border Protection (CBP). AD/CVD watch signals are surfaced, but cash deposit rates and product-specific exclusions still require separate review.
Chapter 99 overlaysChapter 99 overlays
No Chapter 99 overlays are currently linked to this HS code.
§ DUTY BREAKDOWNDuty breakdown
Duty ledger below is calculated on a $10,000 customs value. Fees, AD/CVD, and exclusions are not included here.
China (CN)
Calculated subtotal (incomplete) 12.5% · $1,250.00
| Duty breakdown | Rate | Amount | Source |
|---|---|---|---|
| Base dutyBase | — | — | Set per subheading |
| Chapter 99 · Section 301 forced-labor import policyChapter 99 | 12.5% | $1,250.00 | 9903.05.312026-07-24 |
Total incomplete: Unresolved policy conditions remain; the displayed amount is not an entry-ready final duty.
Section 122 surcharge · Expired
9903.03.01
The rule ended on 2026-07-23.
Section 301 forced-labor import policy · Applied
9903.05.31
Additional rate 12.5%; exemption eligibility must be confirmed.
Missing base duty rate
The selected HTS row does not carry a base General duty rate. Pick a more specific subheading before relying on this calculation.
Stale HTS snapshot
2026HTSRev20 was refreshed 23 day(s) ago; the supported freshness window is 14 days.
AD / CVD
No associated case was found in the available index; catalog coverage is incomplete. AD/CVD applicability remains unverified.
Section 301 exclusions
Product-specific exclusions are not automatically evaluated. Case-by-case review recommended for high-value SKUs.
§ ORIGIN COMPARISONAlternative origin comparison
Same HTS and illustrative $10,000 value; calculated components only. Origin must follow actual origin rules, not the lowest displayed duty.
| Origin | Total rate | Duty @ $10,000 | Calculation status | AD/CVD orders |
|---|---|---|---|---|
| China (CN) | 12.5% | $1,250.00 | Calculated subtotal (incomplete) | — |
| South Korea (KR) | 0% | $0.00 | Calculated subtotal (incomplete) | — |
| Mexico (MX) | 10% | $1,000.00 | Calculated subtotal (incomplete) | — |
| India (IN) | 10% | $1,000.00 | Calculated subtotal (incomplete) | — |
| Vietnam (VN) | 12.5% | $1,250.00 | Calculated subtotal (incomplete) | — |
§ RELATED ENTRIESAll subheadings under HTS 2508
Direct children of HTS heading 2508. Drill in to see actual column rates.
§ FAQFrequently asked
- How do I confirm whether HTS 2508 fits my goods?
- Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths. Compare the complete hierarchy and notes with materials, function and imported form. Continue into the applicable subdivision listed on this page.
- Can I use this amount as final total duty?
- This row has no listed base rate; find the applicable rate-bearing provision. Calculated subtotal (incomplete). The example uses an illustrative value. Supply actual origin, value and policy facts in the workbench, keeping confirmed components, estimates and unevaluated items separate. Unresolved conditions are not zero duty.
- How do I check the data version?
- Base HTS data updated: September 29, 2026; release: 2026HTSRev20. A refresh date is not the effective date of every policy; check USITC and the relevant original rules.