HS Heading 2920 : Esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides) and their salts; their halogenated, sulfonated, nitrated or nitrosated derivatives
HEADING DEFINITION & DISAMBIGUATION
HS Heading 2920 encompasses esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides) and their salts; their halogenated, sulfonated, nitrated or nitrosated derivatives. It classifies 9 6-digit WCO subheadings within Chapter 29 under the Harmonized System [USITC HTS 2026].
Subheadings Under Heading 2920
| HS Code | WCO 6-Digit Subheading Description | Chapter | Operational Package |
|---|---|---|---|
| 2920.11 | Thiophosphoric esters (phosphorodithioates) and their salts, their halogenated, sulfonated, nitrated or nitrosated derivatives, Parathion (ISO) and parathion-methyl (ISO) (methyl-parathion) | 29 | View 2920.11 Package → |
| 2920.19 | Thiophosphoric esters (phosphorodithioates) and their salts, their halogenated, sulfonated, nitrated or nitrosated derivatives, Other | 29 | View 2920.19 Package → |
| 2920.21 | Phosphite esters and their salts; their halogenated, sulfonated, nitrated or nitrosated derivatives, Dimethyl phosphite | 29 | View 2920.21 Package → |
| 2920.22 | Phosphite esters and their salts; their halogenated, sulfonated, nitrated or nitrosated derivatives, Diethyl phosphite | 29 | View 2920.22 Package → |
| 2920.23 | Phosphite esters and their salts; their halogenated, sulfonated, nitrated or nitrosated derivatives, Trimethyl phosphite | 29 | View 2920.23 Package → |
| 2920.24 | Phosphite esters and their salts; their halogenated, sulfonated, nitrated or nitrosated derivatives, Triethyl phosphite | 29 | View 2920.24 Package → |
| 2920.29 | Phosphite esters and their salts; their halogenated, sulfonated, nitrated or nitrosated derivatives, Other | 29 | View 2920.29 Package → |
| 2920.30 | Esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides) and their salts; their halogenated, sulfonated, nitrated or nitrosated derivatives, Endosulfan (ISO) | 29 | View 2920.30 Package → |
| 2920.90 | Other | 29 | View 2920.90 Package → |
DISAMBIGUATION & CLASSIFICATION GUIDE
How to Select the Correct Subheading Under Heading 2920
Commercial shipments must be declared under the exact 6-digit WCO subheading that matches physical, chemical, or processing characteristics. Review the subheading descriptions above and verify against binding CBP CROSS rulings prior to entry filing.
Official Primary Sources & Authority References
USITC HTS Heading 2920 ↗
United States International Trade Commission official Harmonized Tariff Schedule.
CBP CROSS Rulings ↗
CBP e-Rulings database for Heading 2920 precedent rulings.
WCO Nomenclature ↗
World Customs Organization Harmonized System 2022 nomenclature standard.
U.S. Census Foreign Trade ↗
U.S. Census Bureau HTS-to-NAICS concordance and Schedule B export database.
Heading 2920 Frequently Asked Questions (FAQ)
What commercial articles are grouped under HS Heading 2920?
HS Heading 2920 covers Esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides) and their salts; their halogenated, sulfonated, nitrated or nitrosated derivatives, grouping 9 6-digit WCO subheadings.
How are 6-digit subheadings structured under Heading 2920?
Subheadings under Heading 2920 range from 2920.11 to 2920.90, classifying goods by processing state, origin, or material composition.
What is the representative US import duty rate for Heading 2920?
US MFN general duty rates for Heading 2920 commodities range from Duty-Free up to representative ad valorem percentages under the 2026 US HTS.
Are Section 301 tariffs applicable to goods under Heading 2920?
Section 301 additional tariffs depend on the specific 8-digit or 10-digit US HTS code and country of origin (e.g. China Lists 1–4A).
What PGA message set flags apply to Heading 2920?
Partner Government Agency flags (FDA, USDA APHIS, EPA) apply depending on the specific commodity sub-classification.
How do I distinguish between subheadings under Heading 2920?
Review WCO subheading terms and candidate descriptions. For example, unroasted vs. roasted or decaffeinated vs. non-decaffeinated.
Can goods under Heading 2920 enter duty-free under USMCA?
Yes. Goods originating in USMCA territories (US, Mexico, Canada) enter duty-free under SPI code P with a valid Certificate of Origin.
What is the Section 321 de minimis limit for Heading 2920?
Eligible import shipments valued at $800 USD or less imported by one person on one day enter duty-free under 19 U.S.C. 1321.
What documents are required for formal customs entry of Heading 2920?
Commercial Invoice, Packing List, Bill of Lading, and CBP Form 7501 are mandatory for entries exceeding $2,500 USD.
How can an importer get a binding CBP classification ruling for Heading 2920?
Importers may apply for a binding ruling via CBP National Commodity Specialist Division under 19 CFR Part 177.