HS 3824-91-00-00 – Mixtures and preparations consisting mainly of (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl methyl methylphosphonate and bis[(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl] methylphosphonate

Tariff data as of T2026-2, effective Sept 1, 2026, last verified Oct 21, 2026

Prepared binders for foundry moulds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included. › Mixtures and preparations consisting mainly of (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl methyl methylphosphonate and bis[(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl] methylphosphonate › Mixtures and preparations consisting mainly of (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl methyl methylphosphonate and bis[(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl] methylphosphonate

MFN duty rate

Free

GST

5%

Unit of measure

KGM

Mixtures and preparations consisting mainly of (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl methyl methylphosphonate and bis[(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl] methylphosphonate

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Preferential tariff rates

• Costa Rica (CRT): Free
• Jordan (JT): Free
• MXT/CUSMA (Mexico): Free
• Peru: Free
• Panama (PAT): Free
• GPT: Free
• CETA: Free
• Korea: Free
• Israel (CIAT): Free
• Switzerland–Liechtenstein (SLT): Free
• Iceland: Free
• UK: Free
• Ukraine: Free
• Colombia: Free
• Commonwealth Caribbean Countries Tariff (CCCT): Free
• UST/CUSMA (US): Free
• Honduras (HNT): Free
• CPTPP: Free
• Norway (NT): Free
• LDCT: Free
• CPTPP – United Kingdom (CPUKT): Free
• Chile: Free

Preference requires qualifying origin and origin proof or certification.

Frequently asked questions

What is the MFN duty on Mixtures and preparations consisting mainly of (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl methyl methylphosphonate and bis[(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl] methylphosphonate (HS 3824-91-00-00)?

The T2026-2 MFN rate for tariff item 3824.91.00 is Free. Specific or compound rates require manual calculation. Classification and origin must be verified with CBSA.

What is the duty on HS 3824-91-00-00 from the US?

Qualifying US-origin goods with origin proof use UST/CUSMA at Free. This item is not on any US surtax schedule in force in TariffPlus surtax data (checked against CBSA). GST/HST and any applicable personal-import provincial tax are additional.

Which trade agreement rates apply to HS 3824-91-00-00?

Costa Rica (CRT): Free; Jordan (JT): Free; MXT/CUSMA (Mexico): Free; Peru: Free; Panama (PAT): Free; GPT: Free; CETA: Free; Korea: Free; Israel (CIAT): Free; Switzerland–Liechtenstein (SLT): Free; Iceland: Free; UK: Free; Ukraine: Free; Colombia: Free; Commonwealth Caribbean Countries Tariff (CCCT): Free; UST/CUSMA (US): Free; Honduras (HNT): Free; CPTPP: Free; Norway (NT): Free; LDCT: Free; CPTPP – United Kingdom (CPUKT): Free; Chile: Free. Preferential treatment requires qualifying origin and certification. Rates are informational; CBSA is authoritative.