China HS → US HTS
China HS 6903.1000 (含有按重量计超过50%的单体碳): US HTS candidates & duty rates
China tariff line for "含有按重量计超过50%的单体碳" shares the international HS6 anchor 690310 with 1 US HTS candidate below. Compare descriptions, then calculate landed duty.
Updated
China HS 6903.1000 most commonly maps to US HTS 6903.10.00.00. Total duty rate from China (MFN + Chapter 99 overlays): about 25%. Verify the description before filing.
China tariff line facts
| China HS line | 6903.1000 |
|---|---|
| Description | 含有按重量计超过50%的单体碳 |
| Category path | 其他耐火陶瓷制品（例如，甑、 坩埚、马弗罩、喷管、栓塞、支 架、烤钵、管子、护套、棒条及 滑阀式水口），但硅质化石粉及类 似硅土制的除外 > 含有按重量计超过50%的单体碳 |
| Shared HS6 | 690310 |
| China MFN rate (reference) | 8 |
| Schedule version | 2026 |
US HTS candidates (1)
| US HTS | Description | General (MFN) | Total from China |
|---|---|---|---|
| 6903.10.00.00 | Containing by weight more than 50 percent of free carbon | 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 6903.1000?
There is no one-to-one mapping: only the first six digits (HS6 690310) are shared internationally. Under this anchor the US schedule has 1 candidate line; the most common is 6903.10.00.00. Match your product facts (material, use, construction) against the descriptions to pick the right one.
How much is US import duty for "含有按重量计超过50%的单体碳" from China?
Using the leading candidate 6903.10.00.00, 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.