Acids — HS code 29.18

Acids — HS code 29.18. The first six digits are the same in every country. All 89 tariff lines, units and Türkiye import duty rates. Free, no sign-up.

Source: Turkish Ministry of Trade — Turkish Customs Tariff Schedule (TGTC), 2026 edition. Data last updated: . Compiled from the official schedule for information only. Binding tariff information is issued by the customs administration.

What this heading covers

Acids; carboxylic acid with additional oxygen function and their anhydrides, halides, peroxides, peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives

The first six digits are the same in every country that applies the Harmonized System; the twelve-digit breakdown below them is specific to Türkiye. This heading has 16 subheadings and 89 twelve-digit codes (2026 schedule).

This heading sits in chapter 29 (Organic chemicals). Classification is governed by the official chapter notes: a note can pull goods into the chapter or push them out of it.

Subheadings and tariff codes

The code used on a customs declaration has twelve digits. The list below gives the six-digit subheading first, then the twelve-digit codes underneath it. Opening a code shows its definition and the Turkish import duty rows registered against it.

Official English wording exists only down to the six-digit HS subheading. The twelve-digit breakdowns below it are national lines published by Türkiye in Turkish only, so they are shown here in Turkish — translating them ourselves would put words on a customs code that no authority has approved.

2918.11 — Acids; carboxylic acids, (with alcohol function but without other oxygen function), lactic acid, its salts and esters

2918.13 — Acids; carboxylic acids, (with alcohol function but without other oxygen function); salts and esters of tartaric acid

2918.15 — Acids; carboxylic acids, (with alcohol function but without other oxygen function), salts and esters of citric acid

2918.16 — Acids; carboxylic acids, (with alcohol function but without other oxygen function), gluconic acid, its salts and esters

2918.19 — Acids; carboxylic acids, (with alcohol function but without other oxygen function), other than lactic, tartaric, citric, and gluconic acids and their salts and esters

2918.21 — Acids; carboxylic acids, (with phenol function but without other oxygen function), salicylic acid and its salts

2918.22 — Acids; carboxylic acids, (with phenol function but without other oxygen function), o-acetylsalicylic acid, its salts and esters

2918.23 — Acids; carboxylic acids, (with phenol function but without other oxygen function), other esters of salicylic acid and its salts n.e.c. in item no. 2918.2

2918.29 — Acids; carboxylic acids, (with phenol function but without other oxygen function), their anhydrides, halides, peroxides, peroxyacids and their derivatives, n.e.c. in item no. 2918.2

2918.30 — Acids; carboxylic acids, (with aldehyde or ketone function but without other oxygen function), their anhydrides, halides, peroxides, peroxyacids and their derivatives

2918.99 — Acids; carboxylic acids, with additional oxygen function (not alcohol, phenol, aldehyde or ketone) and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives; other than 2,4,5-T (ISO)

2918.12

2918.14

2918.17

2918.18

2918.91

Türkiye import duty rates under this heading

The ranges below are the rates Türkiye applies on import, compiled from the import regime rows registered against the 89 codes under this heading. The HS code itself is identical in every country down to six digits; only these rates and the twelve-digit breakdown are Türkiye's. A range is always calculated within a single column; different country groups are never mixed. The rate that applies to you depends on both the twelve-digit code and the country of origin — open the specific code for the exact value.

These are the columns of Türkiye's Import Regime Decree: in the industrial-goods list and the additional-duty table the columns are published by number: 1 = EU members and free trade agreement partners, 2 = Qatar, 3 = United Arab Emirates, 4-5-6 = Generalised System of Preferences groups (least developed, special incentive, developing), 7 = all other countries. A preferential column only applies where a valid proof of origin is filed.

The rate becomes an amount as follows: customs duty = customs value (price of the goods + freight to the Turkish border + insurance) × rate. The additional customs duty applies to the same base, not on top of the customs duty. VAT is calculated last, on the customs value plus every tax paid at customs plus the costs incurred up to registration of the declaration.

Which subcode you pick changes the duty you pay

The 94 import regime rows under this heading do not carry the same rate. The bands below are the values in list column 7; confirm which row governs your goods before you settle on a twelve-digit code.

The same split also appears in these columns: list column 2 · list column 3 · list column 6.

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