China HS → US HTS
China HS 3824.9992 (按重量计含氧化镁70%以上的 混合物): US HTS candidates & duty rates
China tariff line for "按重量计含氧化镁70%以上的 混合物" shares the international HS6 anchor 382499 with 12 US HTS candidates below. Compare descriptions, then calculate landed duty.
Updated
China HS 3824.9992 most commonly maps to US HTS 3824.99.41. Total duty rate from China (MFN + Chapter 99 overlays): about 37.10%. Verify the description before filing.
China tariff line facts
| China HS line | 3824.9992 |
|---|---|
| Description | 按重量计含氧化镁70%以上的 混合物 |
| Category path | 铸模及铸芯用粘合剂；其他税目 > 其他 > 其他 > 其他 > 按重量计含氧化镁70%以上的 混合物 |
| Shared HS6 | 382499 |
| China MFN rate (reference) | 6.5 |
| Schedule version | 2026 |
US HTS candidates (12)
| US HTS | Description | General (MFN) | Total from China |
|---|---|---|---|
| 3824.99.41 | Fatty substances of animal or vegetable origin and mixtures thereof | 4.6% | 37.10% |
| 3824.99.75 | Naphthenic acids, their water-insoluble salts and their esters | 3.7% | 36.20% |
| 3824.99.39 | Other | Free | 32.50% |
| 3824.99.93 | Other | 5% | 37.50% |
| 3824.99.11.00 | In the form of ingots | Free | 32.50% |
| 3824.99.21.00 | Consisting wholly of substances found naturally in coal tar, whether obtained from coal tar or other source | Free | 32.50% |
| 3824.99.25.00 | Aqueous mixtures of triphenyl sulfonium chloride, diphenyl (4-phenylthio)phenyl sulfonium chloride and (thiodi-4,1- phenylene)bis(diphenyl sulfonium) dichloride | 6.5% | 39% |
| 3824.99.26.00 | Benzene, 2,4-diisocyanate-1,3,5-tris(1- methylethyl) homopolymer; 5-Fluoro-2-methyl-1-[[4-(methylsulfinyl)- phenyl]methylene]-1H-indene;Mixtures of dimethyl phthalate, t-butanol, hydrogen peroxide, and sodium salicylate; andMixtures containing derivatives of N-[4-(2- hydroxy-3-phenoxypropoxy)phenyl]- acetamide | Free | 32.50% |
| 3824.99.31.00 | Of bismuth | 6.5% | 39% |
| 3824.99.32.00 | Of hydrosulfite compounds, of sulfoxylate compounds, or of both | 6.5% | 39% |
| 3824.99.33.00 | Of mercury | 4.2% | 36.70% |
| 3824.99.34.00 | Of molybdenum | 2.8% | 35.30% |
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 3824.9992?
There is no one-to-one mapping: only the first six digits (HS6 382499) are shared internationally. Under this anchor the US schedule has 12 candidate lines; the most common is 3824.99.41. Match your product facts (material, use, construction) against the descriptions to pick the right one.
How much is US import duty for "按重量计含氧化镁70%以上的 混合物" from China?
Using the leading candidate 3824.99.41, the total rate from China is about 37.10% — 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.