China HS → US HTS
China HS 2934.3000 (结构上含有一个吩噻嗪环系（不): US HTS candidates & duty rates
China tariff line for "结构上含有一个吩噻嗪环系（不" shares the international HS6 anchor 293430 with 7 US HTS candidates below. Compare descriptions, then calculate landed duty.
Updated
China HS 2934.3000 most commonly maps to US HTS 2934.30.12.00. Total duty rate from China (MFN + Chapter 99 overlays): about 6.50%. Verify the description before filing.
China tariff line facts
| China HS line | 2934.3000 |
|---|---|
| Description | 结构上含有一个吩噻嗪环系（不 |
| Category path | 核酸及其盐，无论是否已有化学 定义；其他杂环化合物 > 结构上含有一个吩噻嗪环系（不 |
| Shared HS6 | 293430 |
| China MFN rate (reference) | 6.5 |
| Schedule version | 2026 |
US HTS candidates (7)
| US HTS | Description | General (MFN) | Total from China |
|---|---|---|---|
| 2934.30.12.00 | 2-(Trifluoromethyl)phenothiazine | 6.5% | 6.50% |
| 2934.30.18.00 | Ethyl (1H-phenothiazin-2,4,1)carbamate | Free | 0% |
| 2934.30.23.00 | Antidepressants, tranquilizers and other psychotherapeutic agents | 6.5% | 6.50% |
| 2934.30.43.00 | Products described in additional U.S. note 3 to section VI | 6.5% | 6.50% |
| 2934.30.27.00 | Other | 6.5% | 6.50% |
| 2934.30.50.00 | Other | 6.5% | 6.50% |
| 2934.30 | Compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused: | — | — |
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 2934.3000?
There is no one-to-one mapping: only the first six digits (HS6 293430) are shared internationally. Under this anchor the US schedule has 7 candidate lines; the most common is 2934.30.12.00. Match your product facts (material, use, construction) against the descriptions to pick the right one.
How much is US import duty for "结构上含有一个吩噻嗪环系（不" from China?
Using the leading candidate 2934.30.12.00, the total rate from China is about 6.50% — 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.