Mercosur TradeFlow
The EU–Mercosur Interim Trade Agreement has been provisionally applied since 1 May 2026. Poland's action for annulment before the EU Court of Justice (Case C-460/26) is pending. Savings shown are estimates. Official Journal notice

HS 2918 · Organic chemicals

Carboxylic acids with additional oxygen

Data last updated 18 October 2026 · schedule data 2026.10.2

In short

The EU's duty on Mercosur carboxylic acids is up to 5.2% today and reaches zero by 2030; Brazil's duty on EU carboxylic acids is up to 11.4% today and reaches zero by 2036.

Rates at a glance

Into the EU from Mercosur

19 tariff lines

Preferential duty 2026

0–5.2%

Duty-free on all phased lines by

2030

Agreement base rate

0–6.5%

Applied MFN rate today

0–6.5%

Into Brazil from the EU

57 tariff lines

Preferential duty 2026

0–11.4%

Duty-free on all phased lines by

2036

Agreement base rate

2–14%

Applied MFN rate today

0–12.6%

Work out the duty on your shipment

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Calculate Mercosur → EUCalculate EU → Mercosur

About this product

Citric acid, salicylic acid and similar chemicals fall here, many of them used in food and pharmaceuticals. The EU phases out its duties within a few years. Many Mercosur lines already have a zero applied rate, and the rest come down over short and long schedules.

How the duty falls, year by year

Highest and lowest ad valorem duty each year over the lines on a path to zero. Excluded and quota-only lines keep their duty and aren't included.

Highest preferential ad valorem duty by year, 2918Mercosur → EU: 5.2% in 2026 to 0% in 2030; EU → Mercosur: 11.4% in 2026 to 0% in 2036. The table below has the same figures.0%7.5%15%202620282030203220342036
Mercosur → EUEU → Mercosur

Into the EU from Mercosur

Into the EU from Mercosur
YearAd valorem dutyLines duty-free
20260–5.2%2 / 19
20270–3.9%2 / 19
20280–2.6%2 / 19
20290–1.3%2 / 19
20300%19 / 19

Into Brazil from the EU

Into Brazil from the EU
YearAd valorem dutyLines duty-free
20260–11.4%40 / 57
20270–10.3%40 / 57
20280–9.1%40 / 57
20290–8%40 / 57
20300–6.8%41 / 57
20310–5.7%41 / 57
20320–4.5%41 / 57
20330–3.4%41 / 57
20340–2.2%41 / 57
20350–1.1%41 / 57
20360%57 / 57

Lines by staging category

The staging category sets the speed of the cut: 0 is duty-free from entry into force, 4 to 15 are the years to zero, E is excluded and letter codes are quotas or special treatments.

Mercosur → EU

  • 4× 17
  • 0× 2

EU → Mercosur

  • 4× 32
  • 10× 25

Tariff-rate quotas

No tariff-rate quota applies to this heading.

Rates in each Mercosur country

Each member has its own base rate and applied MFN rate. The preference is cut from the base rate, or from the applied rate where that's lower (Art. 2.4(7) of the agreement), so the current rate can differ by country.

Rates in each Mercosur country
CountryBase rateApplied MFNPreferential 2026Zero byApplied-rate source
Brazil2–14%0–12.6%1 line has no single published rate0–11.4%2036Brazil applied import duty, Res. Gecex 272/2021 Annexes II, V, VI, IX (MDIC), as of 5 October 2026
Argentina2–14%0–12.6%2 lines have no single published rate0–11.4%2036Argentina applied import duty (DIE), ARCA Arancel Integrado, as of 18 October 2026
Uruguay2–14%0–12.6%1 line has no single published rate0–11.4%2036Uruguay applied import duty (Arancel Nacional, MEF), as of 10 February 2025Manual snapshotOlder than 180 days
Paraguay0–14%0–10.8%1 line has no single published rate0–9.8%2036Paraguay applied import duty (Arancel Nacional Vigente, MEF), as of 4 November 2025Manual snapshotOlder than 180 days

All tariff lines

Line descriptions are the English text of the schedules (CN 2013 for the EU, NCM 2012 for Mercosur).

Into the EU from Mercosur: 19 lines
Into the EU from Mercosur
CodeDescriptionStagingBaseApplied MFN2026Final
2918 11 00Lactic acid, its salts and esters (excl. inorganic or organic compounds of mercury)46.5%0 % [additional code 2500] / 6.5 % / 6.5 % [additional code 2501]5.2%Freefrom 2030
2918 12 00Tartaric acid46.5%6.5%5.2%Freefrom 2030
2918 13 00Salts and esters of tartaric acid46.5%0 % [additional code 2500] / 6.5 % [additional code 2501]5.2%Freefrom 2030
2918 14 00Citric acid46.5%6.5%5.2%Freefrom 2030
2918 15 00Salts and esters of citric acid (excl. inorganic or organic compounds of mercury)46.5%6.5%5.2%Freefrom 2030
2918 16 00Gluconic acid, its salts and esters46.5%0 % [additional code 2500] / 6.5 % / 6.5 % [additional code 2501]5.2%Freefrom 2030
2918 18 00Chlorobenzilate "ISO"46.5%6.5%5.2%Freefrom 2030
2918 19 30Cholic acid and 3-alpha, 12-alpha-dihydroxy-5-beta-cholan-24-oic acid "deoxycholic acid", their salts and esters46.3%6.3%5%Freefrom 2030
2918 19 402,2-Bis"hydroxymethyl"propionic acid0FreeFreeFreeFree
2918 19 502,2-Diphenyl-2-hydroxyacetic acid (benzilic acid)46.5%–5.2%Freefrom 2030
2918 19 98Carboxylic acids with alcohol function but without other oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives (excl. lactic acid, tartaric acid, citric acid, gluconic acid, cholic acid, 3-alpha, 12-alpha-dihydroxy-5-beta-cholan-24-oic acid "deoxycholic acid" and their salts and esters, and 2,2-bis"hydroxymethyl"propionic acid and chlorobenzilate (iso) and 2,2-diphenyl-2-hydroxyacetic acid (benzilic acid))46.5%0 % [additional code 2500] / 6.5 % / 6.5 % [additional code 2501]5.2%Freefrom 2030
2918 21 00Salicylic acid and its salts (excl. inorganic or organic compounds of mercury)46.5%6.5%5.2%Freefrom 2030
2918 22 00o-Acetylsalicylic acid, its salts and esters46.5%0 % [additional code 2500] / 6.5 % [additional code 2501]5.2%Freefrom 2030
2918 23 00Esters of salicylic acid and their salts (excl. o-acetylsalicylic acid, its salts and esters)46.5%0 % [additional code 2500] / 6.5 % [additional code 2501]5.2%Freefrom 2030
2918 29 00Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their halogenated, sulphonated, nitrated or nitrosated derivatives (excl. salicylic acid and o-Acetylsalicylic acid, and their salts and esters)46.5%0 % [additional code 2500] / 6.5 % / 6.5 % [additional code 2501]5.2%Freefrom 2030
2918 30 00Carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their halogenated, sulphonated, nitrated or nitrosated derivatives46.5%0 % [additional code 2500] / 6.5 % / 6.5 % [additional code 2501]5.2%Freefrom 2030
2918 91 002,4,5-T "ISO" "2,4,5-trichlorophenoxyacetic acid", its salts and esters46.5%6.5%5.2%Freefrom 2030
2918 99 402,6-Dimethoxybenzoic acid; dicamba (ISO); sodium phenoxyacetate0FreeFreeFreeFree
2918 99 90Carboxylic acids with additional oxygen function, their anhydrides, halides, peroxides and peroxyacids and their halogenated, sulphonated, nitrated or nitrosated derivatives (excl. only with alcohol, phenol, aldehyde or ketone function, and 2,6- dimethoxybenzoic acid, dicamba (iso), sodium phenoxyacetate, and 2,4,5-t (iso) [2,4,5-trichlorophenoxyacetic acid] and its salts and esters)46.5%0 % [additional code 2500] / 6.5 % / 6.5 % [additional code 2501]5.2%Freefrom 2030
Into Brazil from the EU: 57 lines
Into Brazil from the EU
CodeDescriptionStagingBaseApplied MFN2026Final
2918 11 00Lactic acid, its salts and esters1012%10.8%9.8%Freefrom 2036
2918 12 00Tartaric acid1012%10.8%9.8%Freefrom 2036
2918 13 10Tartaric acid, its salts1012%10.8%9.8%Freefrom 2036
2918 13 20Tartaric acid, its esters42%FreeFreeFreefrom 2030
2918 14 00Citric acid1012%10.8%9.8%Freefrom 2036
2918 15 00Salts and esters of citric acid1012%10.8%9.8%Freefrom 2036
2918 16 10Calcium gluconate1012%FreeFreeFreefrom 2036
2918 16 90Gluconic acid, its other salts and esters1012%10.8%9.8%Freefrom 2036
2918 18 00Chlorobenzilate42%FreeFreeFreefrom 2030
2918 19 10Bromopropylate42%FreeFreeFreefrom 2030
2918 19 21Ursodiol (ursodeoxycholic acid)42%FreeFreeFreefrom 2030
2918 19 22Chenodeoxycholic acid42%FreeFreeFreefrom 2030
2918 19 29Biliar acid, its other salts, esters and derivatives1012%FreeFreeFreefrom 2036
2918 19 3012-hydroxystearic acid1012%10.8%9.8%Freefrom 2036
2918 19 41Benzylic acid (2, 2-diphenil-2- hidroxyacetic acid)42%–1.6%Freefrom 2030
2918 19 42Salts of benzylic acid42%FreeFreeFreefrom 2030
2918 19 43Esters of benzylic acid42%FreeFreeFreefrom 2030
2918 19 90Other carboxylic acids alcohol function, anhydrides, etc42%FreeFreeFreefrom 2030
2918 21 10Salicylic acid1012%7%6.3%Freefrom 2036
2918 21 20Salts of salicylic acid1012%10.8%9.8%Freefrom 2036
2918 22 11O-acetylsalicylic acid1012%10.8%9.8%Freefrom 2036
2918 22 12Aluminium o-acetylsalicylate1012%10.8%9.8%Freefrom 2036
2918 22 19Other salts of o-acetylsalicylate acid42%FreeFreeFreefrom 2030
2918 22 20Other esters of o-acetylsalicylate acid42%FreeFreeFreefrom 2030
2918 23 00Other esters of salicylic acid and their salts1012%10.8%9.8%Freefrom 2036
2918 29 10Hydroxynaphthoic acid42%FreeFreeFreefrom 2030
2918 29 21P-hydroxybenzoic acid42%FreeFreeFreefrom 2030
2918 29 22Methylparaben1012%10.8%9.8%Freefrom 2036
2918 29 23Propylparaben1012%10.8%9.8%Freefrom 2036
2918 29 29Other salts and esters of p-hydroxybenzoic acid42%FreeFreeFreefrom 2030
2918 29 30Gallic acid, its salts and esters42%FreeFreeFreefrom 2030
2918 29 40Pentaerythrityl tetrakis(3(3, 5-di-tert- butyl-4-hyd.)pr.1012%FreeFreeFreefrom 2036
2918 29 50Octadecyl 3-(3, 5-di-tert-butyl-4- hydroxyphenyl)propion.1012%FreeFreeFreefrom 2036
2918 29 90Others carboxylic acids, phenol function, anhydrides, etc42%FreeFreeFreefrom 2030
2918 30 10Ketoprofen42%FreeFreeFreefrom 2030
2918 30 20Methylbutryl acetate42%FreeFreeFreefrom 2030
2918 30 31Dehydrocholic acid42%FreeFreeFreefrom 2030
2918 30 32Sodium dehydrocholate42%FreeFreeFreefrom 2030
2918 30 33Magnesium dehydrocholate1014%FreeFreeFreefrom 2036
2918 30 39Others salts of dehydrocholic acid42%FreeFreeFreefrom 2030
2918 30 402-nitromethylbenzylidene acetyl acetate42%FreeFreeFreefrom 2030
2918 30 90Others carboxylic acids aldehyde fuction, ketone, etc.42%FreeFreeFreefrom 2030
2918 91 002, 4, 5-trichlorophenoxyacetic acid42%FreeFreeFreefrom 2030
2918 99 11Phenoxyacetic acid, its salts and esters1012%FreeFreeFreefrom 2036
2918 99 122, 4-dichlorophenoxyacetic acid, its salts and esters1014%12.6%11.4%Freefrom 2036
2918 99 19Other derivatives of phenoxyacetic acid, its salts and esters42%FreeFreeFreefrom 2030
2918 99 21Dichlorophenoxybutyric acid, its salts and esters1012%FreeFreeFreefrom 2036
2918 99 29Other dichlorophenoxybutyric acids, its salts and esters42%FreeFreeFreefrom 2030
2918 99 30Acifluorfen sodium42%FreeFreeFreefrom 2030
2918 99 40Naproxen42%FreeFreeFreefrom 2030
2918 99 503-(2-Chloro-alpha,alpha,alpha-trifluoro-p- tolyloxy)benzoic acid42%FreeFreeFreefrom 2030
2918 99 60Diclofop-methyl42%FreeFreeFreefrom 2030
2918 99 91Fenofibrate42%FreeFreeFreefrom 2030
2918 99 92Methylchlorophenoxyacetic acid, their salts/esters1012%FreeFreeFreefrom 2036
2918 99 935-(2-chloro-4-trifluoromethylphenoxy)2- nitrobenzoate etc.(lactofen)1012%10.8%9.8%Freefrom 2036
2918 99 944-(4-hydroxyphenoxy)-3, 5-diiodophenyl acetic acid1014%FreeFreeFreefrom 2036
2918 99 99Other carboxicylic acids containing additional oxygenated functions and their anhydrides42%FreeFreeFreefrom 2030

Related products

All headings in chapter 29: Organic chemicals

Data and method

Worked out with the calculator's engine from the agreement schedules (Annex 2-A) and the applied-rate files, for agreement year 2026. Mercosur → EU figures assume Brazilian origin, which only matters for the few origin-specific quotas; EU → Mercosur figures are for Brazil unless the country table says otherwise.

Methodology and data sources

Estimates only, not legal or customs advice. Check the official schedules before relying on a rate.