HS 2923.90: Quaternary ammonium salts and hydroxides; whether or not chemically defined n.e.c. in heading no. 2923
Brazil import duty rates — Updated May 2026
HS 2923.90 covers quaternary ammonium salts and hydroxides; whether or not chemically defined n.e.c. in heading no. 2923 under Brazil's NCM classification. This heading maps to 7 Brazilian NCM codes with import duty (II) ranging from 0%–10.8%. Under the EU-Mercosur agreement, EU-origin products in this category benefit from progressive tariff reduction. In 2024, Brazil imported $83.5M worth of these products, with China as the leading supplier.
Regulatory agencies
Products under this heading may require pre-approval before customs clearance. Learn more
EU-Mercosur impact
Gradual tariff elimination over 7-10 years. Pharmaceutical intermediates benefit significantly.
Brazil imports — 2024
Source: UN ComtradeTop exporters to Brazil
CIF values in USD. Percentage = share of Brazil's total imports for this HS heading.
NCM codes under HS 2923.90
| NCM Code | Description (PT — official) | II | IPI | Ex-Tarif. | |
|---|---|---|---|---|---|
| 2923.90.10 | Betaína e seus sais | 10.8% | 0% | — | Calculate → |
| 2923.90.20 | Derivados da colina | 0% | 0% | — | Calculate → |
| 2923.90.30 | Cloreto de 3-cloro-2-hidroxipropiltrimetilamônio | 0% | 0% | — | Calculate → |
| 2923.90.40 | Halogenetos de alquil-trimetilamônio, com grupo alquila de C6 a C22 | 10.8% | 0% | — | Calculate → |
| 2923.90.50 | Halogenetos de dialquil-dimetilamônio ou de alquil-benzil-dimetilamônio, com grupo alquila de C6 a C22 | 10.8% | 0% | — | Calculate → |
| 2923.90.60 | Halogenetos de pentametil-alquil-propilenodiamônio, com grupo alquila de C6 a C22 | 10.8% | 0% | — | Calculate → |
| 2923.90.90 | Outros | 0% | 0% | — | Calculate → |
How to import quaternary ammonium salts and hydroxides; whether or not chemically defined n.e.c. in heading no. 2923 into Brazil
- Confirm the NCM code — the table above shows 7 NCM codes under HS 2923.90. Your Brazilian customs broker will determine the exact 8-digit NCM.
- Check the import duty — rates for this heading range from 0%–10.8%. This is the base rate before other taxes.
- Calculate the full landed cost — Brazil charges 7 cascading taxes on imports: II, IPI, PIS, COFINS, ICMS, AFRMM, and Siscomex fee.
- Verify regulatory requirements — check if ANVISA, INMETRO, MAPA, or other agencies require pre-clearance for your product.
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.
Calculate your landed cost
Enter CIF value and get a breakdown of all 7 Brazilian import taxes for HS 2923.90.