China HS → US HTS
China HS 3903.3010 (改性的): US HTS candidates & duty rates
China tariff line for "改性的" shares the international HS6 anchor 390330 with 1 US HTS candidate below. Compare descriptions, then calculate landed duty.
Updated
China HS 3903.3010 most commonly maps to US HTS 3903.30.00.00. Total duty rate from China (MFN + Chapter 99 overlays): about 31.50%. Verify the description before filing.
China tariff line facts
| China HS line | 3903.3010 |
|---|---|
| Description | 改性的 |
| Category path | 初级形状的苯乙烯聚合物 > 丙烯腈-丁二烯-苯乙烯（ABS） 共聚物 > 改性的 |
| Shared HS6 | 390330 |
| China MFN rate (reference) | 6.5 |
| Schedule version | 2026 |
US HTS candidates (1)
| US HTS | Description | General (MFN) | Total from China |
|---|---|---|---|
| 3903.30.00.00 | Acrylonitrile-butadiene-styrene (ABS) copolymers | 6.5% | 31.50% |
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 3903.3010?
There is no one-to-one mapping: only the first six digits (HS6 390330) are shared internationally. Under this anchor the US schedule has 1 candidate line; the most common is 3903.30.00.00. Match your product facts (material, use, construction) against the descriptions to pick the right one.
How much is US import duty for "改性的" from China?
Using the leading candidate 3903.30.00.00, the total rate from China is about 31.50% — 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.