Import duty / Chapter 29 / Heading 2918
Heading 2918 covers 16 tariff lines in LoadLoom's table; 5 of them clear duty-free under USMCA for goods made in Canada, the US or Mexico. Published US and Canadian rates below, verified October 2026. Pick the line that matches your goods for the worked example and border steps.
| HS code | Goods | US duty | Canada duty | USMCA |
|---|---|---|---|---|
| 2918.11 | Acids; carboxylic acids, (with alcohol function but without other oxygen function), lactic acid, its salts and esters | 5.1% | Free | Not eligible |
| 2918.12 | Acids; carboxylic acids, (with alcohol function but without other oxygen function), tartaric acid | Free | Free | Free with certificate |
| 2918.13 | Acids; carboxylic acids, (with alcohol function but without other oxygen function); salts and esters of tartaric acid | Free | Free | Not eligible |
| 2918.14 | Acids; carboxylic acids, (with alcohol function but without other oxygen function), citric acid | 6% | Free | Free with certificate |
| 2918.15 | Acids; carboxylic acids, (with alcohol function but without other oxygen function), salts and esters of citric acid | 6.5% | Free | Not eligible |
| 2918.16 | Acids; carboxylic acids, (with alcohol function but without other oxygen function), gluconic acid, its salts and esters | 6% | Free | Not eligible |
| 2918.17 | Acids; carboxylic acids, (with alcohol function but without other oxygen function), 2,2-Diphenyl-2-hydroxyacetic acid (benzilic acid) | 5.8% | Free | Free with certificate |
| 2918.18 | Acids; carboxylic acids, (with alcohol function but without other oxygen function), chlorobenzilate (ISO) | 6.5% | Free | Free with certificate |
| 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 | 5.8% | Free | Not eligible |
| 2918.21 | Acids; carboxylic acids, (with phenol function but without other oxygen function), salicylic acid and its salts | 6.5% | Free | Not eligible |
| 2918.22 | Acids; carboxylic acids, (with phenol function but without other oxygen function), o-acetylsalicylic acid, its salts and esters | 6.5% | Free | Not eligible |
| 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 | 6.5% | Free | Not eligible |
| 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 | 5.8% | Free | Not eligible |
| 2918.30 | Acids; carboxylic acids, (with aldehyde or ketone function but without other oxygen function), their anhydrides, halides, peroxides, peroxyacids and their derivatives | 5.8% | Free | Not eligible |
| 2918.91 | Acids; carboxylic acids, with additional oxygen function (not alcohol, phenol, aldehyde or ketone) and their anhydrides, halides, peroxides and peroxyacids; 2,4,5-T (ISO) (2,4,5-trichlorophenoxyacetic acid), its salts and esters | 6.5% | Free | Free with certificate |
| 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) | 5.8% | Free | Not eligible |
This page is a free reference for shippers, not a customs ruling. Final classification and duty are determined by the licensed customs broker at entry, and government amounts are always billed at actual. Rates change with each tariff edition and trade action.
