HS Code 292021
6-digit classification for Dimethyl Phosphite, with duty lookup and 1688 checks before payment
Official description: Esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives : Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives : Dimethyl phosphite
Also searched as: dimethyl phosphite, dimethyl hydrogen phosphite, phosphorous acid dimethyl ester
Classification
How 292021 breaks down
Organic chemicals
Esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives
Dimethyl phosphite
Short answer
What HS code 292021 means before paying a 1688 supplier
HS code 292021 is the 6-digit HS 2022 starting point for dimethyl phosphite; often searched as dimethyl phosphite, dimethyl hydrogen phosphite, phosphorous acid dimethyl ester. Before using it in a landed-cost estimate, confirm the product material, function, destination market, and the official tariff source. Treat any 1688 supplier code as a clue, not the final import classification.
Use
Start with this 6-digit HS code and compare the product's material, function, and use.
Verify
Check the destination market's official HTS, TARIC, commodity-code, duty, VAT, or GST source.
Decide
If classification, documents, or restricted-product risk is unclear, submit the product for a written check.
Covered products
What products fall under HS code 292021?
Buyers sourcing dimethyl phosphite from 1688 commonly describe it in these ways. If your product matches, 292021 is likely the right 6-digit starting point — confirm material and intended use against the official tariff.
Import duty by market
Where to check the import duty for HS 292021
The 6-digit code is universal, but duty, VAT and GST are set by the destination country and depend on the full national tariff line with China as the country of origin. Start from the official source for your market.
United States
USITC / CBP · Harmonized Tariff Schedule (HTS)
European Union
TARIC · Access2Markets
United Kingdom
HMRC · UK Integrated Online Tariff
Canada
CBSA · Canadian Customs Tariff
Australia
ABF · Australian customs tariff
Singapore
Singapore Customs · Singapore Trade Classification (HS)
Compare the real China-origin import tax across markets
Use the HS & import duty checker to estimate duty + VAT/GST for 292021 by destination before you pay a 1688 supplier.
Heading 2920
Other HS codes under 2920
Subheadings in the same 4-digit heading — "Esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives". If 292021 is not an exact match, one of these may classify your product more precisely.
Questions
HS code 292021: common questions
What is HS code 292021?
HS code 292021 is the World Customs Organization 6-digit HS 2022 subheading for "Esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives : Phosphite esters and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives : Dimethyl phosphite". The first two digits (29) are the chapter — Organic chemicals — and digits 3-4 (2920) are the heading. Countries add further digits (8-10) for their national tariff line.
What products fall under HS 292021?
Common products classified under 292021 include dimethyl phosphite, dimethyl hydrogen phosphite, phosphorous acid dimethyl ester and similar items matching dimethyl phosphite. The correct code still depends on the product's material, function and intended use.
How do I find the import duty for HS code 292021?
Duty is set by the destination country, not by the 6-digit HS code alone. Start from the official tariff of your market — USITC HTS (US), TARIC / Access2Markets (EU), GOV.UK Trade Tariff (UK), CBSA (Canada), ABF (Australia) or Singapore Customs — and look up the full national code with China as the country of origin.
Is HS code 292021 the same in every country?
The first 6 digits (292021) are the same worldwide under the WCO Harmonized System. Beyond that, each country extends the code (HTS in the US, TARIC in the EU, etc.) and sets its own duty and tax rates.
Can I trust the HS code a 1688 supplier gives me?
Treat a supplier-provided code as a clue, not a final classification. It can be incomplete, China-export-specific, or mismatched to your destination's rules. Verify against the official tariff and your product's actual material and use.
Chapter 29
Explore Organic chemicals
Sourcing dimethyl phosphite from 1688?
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