HS code 2815.12 · Chapter 28
Sodium hydroxide in aqueous solution
Sodium hydroxide (caustic soda) in aqueous solution (soda lye).
Current duty on this code
Base most-favoured-nation duty, pulled from the official tariff schedule when the destination publishes one. It does not include country-specific additional tariffs — for a US import those (Section 301, the 2025 reciprocal measures) can dwarf the base rate, and Kustaro shows them separately on a real classification.
United States
live official rateFree (US HTS general/MFN, live)
VAT / sales tax: no federal VAT; state sales/use tax may apply
Source: USITC HTS (live) · retrieved 2026-07-29
United Kingdom
live official rate4.00 % (UK third-country duty, live)
VAT / sales tax: 20.00 % (UK VAT, live)
Source: UK Trade Tariff API (live) · retrieved 2026-07-29
What this heading covers
Sodium hydroxide (caustic soda) in aqueous solution (soda lye). It sits in inorganic chemicals.
Documents to expect
- commercial invoice
- packing list
- safety data sheet (SDS)
- dangerous goods declaration
Watch out for
- Corrosive (Class 8 dangerous goods) — transport rules apply.
- REACH registration and CLP labelling required.
Is 2815.12 the right code for your product?
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This page is reference information, not customs or legal advice. Codes and rates shown are candidates and estimates that change over time — confirm the classification and the applicable duty with a licensed customs broker or the destination customs authority before filing a declaration.