China HS → US HTS
China HS 3905.9100 (共聚物): US HTS candidates & duty rates
China tariff line for "共聚物" shares the international HS6 anchor 390591 with 3 US HTS candidates below. Compare descriptions, then calculate landed duty.
Updated
China HS 3905.9100 most commonly maps to US HTS 3905.91.10.00. Total duty rate from China (MFN + Chapter 99 overlays): about 29%. Verify the description before filing.
China tariff line facts
| China HS line | 3905.9100 |
|---|---|
| Description | 共聚物 |
| Category path | 初级形状的乙酸乙烯酯或其他乙 > 其他 > 共聚物 |
| Shared HS6 | 390591 |
| China MFN rate (reference) | 10 |
| Schedule version | 2026 |
US HTS candidates (3)
| US HTS | Description | General (MFN) | Total from China |
|---|---|---|---|
| 3905.91.10.00 | Containing by weight 50 percent or more of derivatives of vinyl acetate | 4% | 29% |
| 3905.91.50.00 | Other | 5.3% | 30.30% |
| 3905.91 | Copolymers: | 3.2% | 28.20% |
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 3905.9100?
There is no one-to-one mapping: only the first six digits (HS6 390591) are shared internationally. Under this anchor the US schedule has 3 candidate lines; the most common is 3905.91.10.00. Match your product facts (material, use, construction) against the descriptions to pick the right one.
How much is US import duty for "共聚物" from China?
Using the leading candidate 3905.91.10.00, the total rate from China is about 29% — 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.