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U.S. exports of lysine and its esters; salts thereof (HS 292241) totaled $7.4M in July 2026.
Importers of Lysine and Its Esters; Salts Thereof paid $70K in duties in July 2026 — an effective duty rate of 4.5% on $1.6M in dutiable value, based on actual customs collections rather than the published tariff schedule. Lysine and Its Esters; Salts Thereof imports of $6.1M in July 2026 ran 17% below the year-to-date monthly average of $7.3M.
Last updated: July 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.
64 shipments/mo
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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Subheading 4 of 18 in heading 2922
Subheading 292241 · $6.1M of $86.4M
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2922410090 | Lysine and Its Esters; Salts Thereof,Nes0i | $5.7M | 1.11% | 24.46% | $63K |
| 2922410010 | Lysine & Its Esters;salts Therof,Mtg Req Food Chem | $372K | 1.70% | 45.87% | $6K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2922410000 | Lysine and Its Esters; Salts Thereof | $7.4M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$6.1MYoY · Pro
Exports
$7.4MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
Spain and Mexico together take 93% of it.
customs district
origin
entry
rate provision · imports
74.2% enters free of duty; the effective duty rate is 1.15%.