China HS → US HTS
China HS 2512.0010 (硅藻土): US HTS candidates & duty rates
China tariff line for "硅藻土" shares the international HS6 anchor 251200 with 1 US HTS candidate below. Compare descriptions, then calculate landed duty.
Updated
China HS 2512.0010 most commonly maps to US HTS 2512.00.00.00. Total duty rate from China (MFN + Chapter 99 overlays): about 25%. Verify the description before filing.
China tariff line facts
| China HS line | 2512.0010 |
|---|---|
| Description | 硅藻土 |
| Category path | 硅质化石粗粉（例如各种硅藻土） 及类似的硅质土，不论是否煅烧， 其表观比重不超过1 > 硅藻土 |
| Shared HS6 | 251200 |
| China MFN rate (reference) | 3 |
| Schedule version | 2026 |
US HTS candidates (1)
| US HTS | Description | General (MFN) | Total from China |
|---|---|---|---|
| 2512.00.00.00 | Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less | Free | 25% |
Total = MFN base + Section 301 / IEEPA / reciprocal overlays active for China origin. AD/CVD not included.
Frequently asked questions
Which US HTS code corresponds to China HS 2512.0010?
There is no one-to-one mapping: only the first six digits (HS6 251200) are shared internationally. Under this anchor the US schedule has 1 candidate line; the most common is 2512.00.00.00. Match your product facts (material, use, construction) against the descriptions to pick the right one.
How much is US import duty for "硅藻土" from China?
Using the leading candidate 2512.00.00.00, the total rate from China is about 25% — MFN base plus the Chapter 99 overlays (Section 301 / IEEPA / reciprocal) active for China origin. Other candidates may differ, so verify classification first.
Why is China HS8 not identical to US HTS8?
The WCO Harmonized System is only agreed to six digits. China extends HS6 to 8/10-digit national lines for its own tariffs and statistics, and the US does the same with HTS8/HTS10 — the extensions are independent, so codes must be bridged via HS6.
How do I confirm the final HTS classification?
Compare the US line descriptions against your product facts, check CBP rulings for similar goods, and when in doubt request a binding ruling. The bridge tool lets you re-run this query and compare all candidates side by side.