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HSChapter 29
U.S. imports of lysine and its esters; salts thereof (HS 292241) totaled $12.7M in April 2026, traded with 11 countries.
Importers of Lysine and Its Esters; Salts Thereof paid $235K in duties in April 2026 — an effective duty rate of 4.1% on $5.7M in dutiable value, based on actual customs collections rather than the published tariff schedule. Lysine and Its Esters; Salts Thereof imports of $12.7M in April 2026 ran 82% above the year-to-date monthly average of $7.0M.
Last updated: April 2026 dataLysine is an essential amino acid produced primarily by microbial fermentation and is one of the highest-volume amino acid commodities in global trade, used extensively as a feed additive in poultry and swine nutrition. The US schedule distinguishes food-chemical-grade lysine meeting specific purity requirements (2922410010) from other grades (2922410090), a split that matters for both duty treatment and FDA labeling compliance. China dominates supply, with South Korea a significant secondary source; both countries have been subjects of antidumping investigations for lysine in prior trade cycles, making duty-order history a due-diligence item for importers.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Line 2922410010 covers lysine and its salts that meet Food Chemicals Codex (FCC) or equivalent food-grade purity standards, while 2922410090 captures all other grades, including technical or feed-grade material. Importers should confirm the applicable grade with their supplier's certificate of analysis before filing entry to avoid misclassification.
Lysine has historically been the subject of US antidumping proceedings. Importers should query the USITC and Commerce Department's antidumping order database by HTS line and country of origin before shipment, as active orders or suspension agreements can impose significant additional duties beyond the normal column 1 rate.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| KOREA, SOUTH | $7.3M | $6K | -$7.3M |
| NETHERLANDS | -- | $6.8M | +$6.8M |
| MEXICO | -- | $3.8M | +$3.8M |
| INDONESIA | $2.9M | -- | -$2.9M |
| CHINA | $1.2M | $388K | -$801K |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2922410090 | LYSINE AND ITS ESTERS; SALTS THEREOF,NES0I | $10.7M | 4.26% | $182K |
| 2922410010 | LYSINE & ITS ESTERS;SALTS THEROF,MTG REQ FOOD CHEM | $2.0M | 3.70% | $53K |
LYSINE AND ITS ESTERS; SALTS THEREOF,NES0I
LYSINE & ITS ESTERS;SALTS THEROF,MTG REQ FOOD CHEM
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2922410000 | LYSINE AND ITS ESTERS; SALTS THEREOF | $12.5M |
LYSINE AND ITS ESTERS; SALTS THEREOF
13.9M kg
NUCLEIC ACIDS & SALTS; OTHER HETEROCYCLIC CMP, NES
HS 293499
HETEROCYCLIC COMP W NITROGEN HETERO-ATM ONLY NESOI
HS 293399
POLYPEPTIDE PROTEIN& GLYCOPROTEIN HORMONES &DERIV
HS 293719
CMPDS CONT AN UNFUSED PYRIDINE RING ETC NESOI
HS 293339
COMP WITH PYRIMIDINE OR PIPERAZINE RING, NESOI
HS 293359
ANTIBIOTICS, NESOI
HS 294190
| State | Imports | Exports | Balance |
|---|---|---|---|
| New Jersey | $7.3M | -- | -$7.3M |
| Louisiana | -- | $6.8M | +$6.8M |
| Illinois | $2.7M | $3.6M | +$814K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NEW ORLEANS, LA | -- | $6.8M | +$6.8M |
| MINNEAPOLIS-ST. PAUL, MN | $3.6M | -- | -$3.6M |
| LOS ANGELES, CA | $2.5M | $579K | -$2.0M |