NCM 2831.10.29
Dithionites and sulphoxylates; of sodium
Brazil import duty rates — Updated May 2026
NCM 2831.10.29 is the Brazilian tariff code for dithionites and sulphoxylates; of sodium. This code carries 0% import duty (II) and 0% IPI. EU-origin products in this category benefit from the EU-Mercosur trade agreement. This is one of 4 NCM codes under HS heading 2831.10.
Classification hierarchy
Official Brazilian text: Outros
Tax breakdown for NCM 2831.10.29
Taxes are cascading — each applies on a different base. Use the calculator for the exact total.
Trade overview — HS 2831.10
UN Comtrade 2024Brazil imported $20.8M of products under HS heading 2831.10 in 2024. Top suppliers:
Trade data is at the 6-digit HS level. See full HS 2831.10 details →
Regulatory agencies
Products under this NCM may need pre-approval before customs clearance.
EU-Mercosur impact
Most industrial chemicals see tariff elimination over 7-10 years. Already relatively low tariffs (0-8%).
Other NCM codes under HS 2831.10
| NCM | Description (PT — official) | II | IPI | |
|---|---|---|---|---|
| 2831.10.11 | Estabilizados | 0% | 0% | Calculate → |
| 2831.10.19 | Outros | 0% | 0% | Calculate → |
| 2831.10.21 | Estabilizados com formaldeído | 0% | 0% | Calculate → |
How to import NCM 2831.10.29 into Brazil
- Confirm with your customs broker — NCM 2831.10.29 must exactly match your product description. Misclassification leads to fines and seizure.
- Calculate total cost — base import duty is 0%, but Brazil adds IPI (0%), PIS/COFINS (11.75%), ICMS (17–20%), and AFRMM (8%) on top. Use our calculator for the exact total.
- Get import licenses — this chapter requires clearance from ANVISA, IBAMA, Exército. Apply before shipping.
- Choose entry port — ICMS varies by state (17–20%). Compare state rates to optimize your route.
Brazil Import Taxes Explained
Complete guide to the 7 cascading taxes on every import.
How to Export to Brazil
Step-by-step guide for foreign companies.
Regulatory Agencies
ANVISA, INMETRO, MAPA — which products need pre-approval?
Calculate your landed cost for NCM 2831.10.29
Enter CIF value and get a breakdown of all 7 Brazilian import taxes.