HS 380400 — Lignin sulfonic acid and its salts
Trade-statistics name: Lignin Sulfonic Acid And Its Salts
HS 380400 (HTS line 3804.00.10.00) imported into the United States from China at a declared value of $1,000 carries an estimated duty of $375, which is 37.5% of the declared value: a Column 1 general rate of 0%, plus additional duty of Section 301 (China) 25% under 9903.88.03 (U.S. note 20(f)) + Chapter 99 note family 12.5% under 9903.05.31 (U.S. note 52). That composition is what the USITC schedule dated 2026-11-06 and the Chapter 99 measures in force on that schedule produce; it excludes merchandise processing and harbor maintenance fees. The code's other statistical lines are priced between 37.5% and 41.2% at entry, so the HTS line -- not the six-digit code -- sets the rate.
Rates and descriptions: USITC Harmonized
Tariff Schedule export dated 2026-11-06.
Chapter 99 layers are the same composition the tariff API returns
(schedule stamp 2026-11-11). Re-check this
number by calling
GET /api/v1/tariff?hs=3804.00.10.00&origin=CN&value=1000.
380400 is the six-digit subheading of heading 3804 (“Lignin sulfonic acid and its salts”) in chapter 38. 2 HTS statistical lines sit under it in the USITC export dated 2026-11-06; US general imports of the code totalled $1.9M in September 2026.
Estimate duty for 3804.00.10.00
Prefilled with 3804.00.10.00, the first of this code's 2 statistical lines and origin CN. The other lines under the same six digits can carry a different rate — pick the exact line from the entry-cost table below to price yours.
HS 380400 — US general imports
$1.9MAll countries, September 2026.
Source: U.S. Census Bureau, foreign-trade statistics — 2026-09, monthly general imports (GEN_VAL_MO), all countries, this six-digit code's own line, not a roll-up. Census rows collected 2026-11-08T00:03:28Z.
What a China-origin shipment of HS 380400 pays at entry
The Column 1 rate is only the first layer. For goods originating in China, 2 of this code's 2 HTS lines also carry additional duty under Chapter 99 note family, Section 301 (China), so the priceable lines land between 37.5% and 41.2% of the declared value. The table stacks the two layers line by line; the last column is the duty on a $1,000 declared value, and each HTS line links to the calculator with that line and this origin already filled in.
| HTS line | Column 1 (MFN) | Additional duty (China) | Total ad valorem | Duty on $1,000 |
|---|---|---|---|---|
| 3804.00.10.00 | 0% | +37.5%Section 301 (China) 25% under 9903.88.03 (U.S. note 20(f)) + Chapter 99 note family 12.5% under 9903.05.31 (U.S. note 52) | 37.5% | $375 |
| 3804.00.50.00 | 3.7% | +37.5%Section 301 (China) 25% under 9903.88.03 (U.S. note 20(f)) + Chapter 99 note family 12.5% under 9903.05.31 (U.S. note 52) | 41.2% | $412 |
Additional duty for origin CN (China) only, priced on a $1,000 declared value from the Chapter 99 composition the tariff API serves (schedule stamp 2026-11-11). A different origin can carry a different set of Chapter 99 measures on the same line — the free calculator prices one line and one origin at a time, and ExportSonar Pro monitors a set of your own codes so a rate change reaches you with its old value, its new value and the USITC source. Rates are informational and not a binding customs ruling.
ExportSonar Pro watches up to 100 of your own HS codes daily (a free account watches 3) and sends each change with its old rate, new rate and USITC source — $49/month. USDT (TRC20) accepted today; card checkout is on the way.
Leading suppliers of HS 380400 — September 2026
Where the goods under this code came from, by country of origin, from the Census monthly series (all countries, general imports). Each share is of the subheading 380400’s own total, printed in the table footer:
| Origin country | US imports | Share of total |
|---|---|---|
| NORWAY | $1.4M | 70.22% |
| CANADA | $275.3K | 14.23% |
| MEXICO | $220.5K | 11.40% |
| GERMANY | $46.0K | 2.38% |
| SWEDEN | $34.2K | 1.77% |
| Total, all 5 countries | $1.9M | 100.00% |
Exact total, all 5 origin countries: $1,934,510 — the figure the shares above divide by.
Percentages are rounded to two decimals, so they may not add to exactly 100%; the dollar amounts sum to the total in the table footer without rounding.
Source: U.S. Census Bureau, foreign-trade statistics — 2026-09, monthly general imports (GEN_VAL_MO). Shares are computed from individual-country rows only: Census publishes continent, APEC/ASEAN/OECD-style bloc and "total for all countries" rows in the same response, and adding those would count the same dollars two to five times over. Census rows collected 2026-11-08T00:03:28Z.
HTS lines under HS 380400
Every statistical line the US schedule places under this six-digit subheading, copied from the USITC export without edits: the Column 1 general (MFN) rate, the special-program symbols and the statutory Column 2 rate.
| HTS line | Description | Unit | General (Col. 1) | Special | Column 2 |
|---|---|---|---|---|---|
| 3804.00.10.00 | Lignin sulfonic acid and its salts | kg | Free | — | 20% |
| 3804.00.50.00 | Other | kg | 3.7% | Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG) | 25% |
Where this code sits in the schedule
Six digits is the last level the WCO Harmonized System defines internationally: chapter 38, heading 3804, subheading 380400. The US adds national digits below it — eight for the tariff line, ten for the statistical suffix — which is why two traders quoting “the HS code” can still disagree on the rate. Browse the ladder:
Frequently asked questions
What does an entry under HS 380400 cost for a China origin?
Column 1 is only the first layer. On 2 of this code's 2 HTS lines the additional Chapter 99 duty for a China origin is also charged (Chapter 99 note family, Section 301 (China)), so the entry lands at 37.5% to 41.2% of the declared value -- before merchandise processing and harbour maintenance fees. The layer table on this page lists the provision behind each line and the duty on a $1,000 value, and the calculator prices any other origin or value one line at a time.
How do I estimate duty on an entry under 380400?
Duty is the entered value times the rate of the HTS line you declare, plus any Chapter 99 measure that applies to the shipment's origin. Under 380400 the Column 1 general rates run at 3.7% ad valorem on the single line that carries a percentage rate, with the other 1 duty-free; run your own value and origin through the free calculator to see the stacked number.
Where does this 380400 page get its numbers?
Rates, units and descriptions come verbatim from the USITC Harmonized Tariff Schedule export dated 2026-11-06; the import value and supplier shares come from the U.S. Census Bureau monthly trade series for September 2026. Both are named in the source line at the foot of the page, and neither is estimated by us.
What is the duty rate for HS code 380400?
HS 380400 is a six-digit subheading inside heading 3804 of chapter 38. The US schedule prices it line by line: 2 statistical HTS lines fall under 380400 in the USITC export dated 2026-11-06, and 1 of them are duty-free under Column 1 and the rest carry a positive general rate.
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Rates and descriptions: USITC Harmonized Tariff Schedule export dated 2026-11-06 (line set 380400.*). Import value and suppliers: U.S. Census Bureau monthly general imports, September 2026. Rates are informational and not a binding customs ruling.