# HS code 3402.31: Anionic organic surface-active agents, whether or not put up for retail sale, linear alkylbenzene sulphonic acids and their salts > HS code 3402.31 covers anionic organic surface-active agents, whether or not put up for retail sale, linear alkylbenzene sulphonic acids and their salts. It sits in heading 34.02 (organic surface-active agents (other than soap); surface-active preparations, washing preparations (including auxiliary washing preparations) and cleaning preparations, whether or not containing soap, other than those of heading 34.01) in chapter 34 (soap, organic surface-active agents, washing preparations, lubricating preparations, artificial waxes, prepared waxes, polishing or scouring preparations, candles and similar articles, modelling pastes, “dental waxes” and dental preparations with a basis of plaster). Other goods of heading 34.02 are classified under 3402.39 (anionic organic surface-active agents, whether or not put up for retail sale, other), 3402.41 (other organic surface-active agents, whether or not put up for retail sale, cationic), 3402.42 (other organic surface-active agents, whether or not put up for retail sale, non-ionic), 3402.49 (other organic surface-active agents, whether or not put up for retail sale, other) or 2 others. National tariff lines under 3402.31 are live on border.bot for the United States (2 lines, also used by 1 other country). Source: https://border.bot/hs-codes/340231 Last updated: 11 October 2026 [HS codes](https://border.bot/hs-codes) / [Chapter 34](https://border.bot/hs-codes/34) / [34.02](https://border.bot/hs-codes/3402) / [3402.31](https://border.bot/hs-codes/340231) ## Key facts - HS code: 3402.31 - Covers: Anionic organic surface-active agents, whether or not put up for retail sale, linear alkylbenzene sulphonic acids and their salts - Heading: [34.02: Organic surface-active agents (other than soap); surface-active preparations, washing preparations (including auxiliary washing preparations) and cleaning preparations, whether or not containing soap, other than those of heading 34.01](https://border.bot/hs-codes/3402) - Chapter: [34: Soap, organic surface-active agents, washing preparations, lubricating preparations, artificial waxes, prepared waxes, polishing or scouring preparations, candles and similar articles, modelling pastes, “dental waxes” and dental preparations with a basis of plaster](https://border.bot/hs-codes/34) - Edition: HS2022 - Duty in the United States: [See its 2 lines](https://border.bot/countries/united-states/hs-codes/340231) ## What this code covers HS code 3402.31 covers anionic organic surface-active agents, whether or not put up for retail sale, linear alkylbenzene sulphonic acids and their salts. The legal text of the subheading is “Anionic organic surface-active agents, whether or not put up for retail sale: Linear alkylbenzene sulphonic acids and their salts”, read under “Anionic organic surface-active agents, whether or not put up for retail sale”, in HS2022. ## What it doesn’t cover Other goods of heading 34.02 are classified under 3402.39 (anionic organic surface-active agents, whether or not put up for retail sale, other), 3402.41 (other organic surface-active agents, whether or not put up for retail sale, cationic), 3402.42 (other organic surface-active agents, whether or not put up for retail sale, non-ionic), 3402.49 (other organic surface-active agents, whether or not put up for retail sale, other) or 2 others. - [3402.39](https://border.bot/hs-codes/340239) Anionic organic surface-active agents, whether or not put up for retail sale: Other - [3402.41](https://border.bot/hs-codes/340241) Other organic surface-active agents, whether or not put up for retail sale: Cationic - [3402.42](https://border.bot/hs-codes/340242) Other organic surface-active agents, whether or not put up for retail sale: Non-ionic - [3402.49](https://border.bot/hs-codes/340249) Other organic surface-active agents, whether or not put up for retail sale: Other - [3402.50](https://border.bot/hs-codes/340250) Preparations put up for retail sale - [3402.90](https://border.bot/hs-codes/340290) Other ## How it is structured 3402.31 is a six-digit subheading. Its first two digits, 34, are the chapter; the first four, 3402, are heading 34.02; the last two, 31, identify the subheading within the heading. Countries add their own digits after these six for their national tariff lines. - Chapter 34: Soap, organic surface-active agents, washing preparations, lubricating preparations, artificial waxes, prepared waxes, polishing or scouring preparations, candles and similar articles, modelling pastes, “dental waxes” and dental preparations with a basis of plaster - Heading 34.02: Organic surface-active agents (other than soap); surface-active preparations, washing preparations (including auxiliary washing preparations) and cleaning preparations, whether or not containing soap, other than those of heading 34.01 - Within the heading: Anionic organic surface-active agents, whether or not put up for retail sale - Subheading 3402.31: Linear alkylbenzene sulphonic acids and their salts ## In other countries National tariff lines under 3402.31 are live on border.bot for the United States (2 lines, also used by 1 other country). - [United States](https://border.bot/countries/united-states/hs-codes/340231): 2 lines, used by 1 other country - Previous subheading: [3401.30](https://border.bot/hs-codes/340130) Organic surface-active products and preparations for washing the skin, in the form of liquid or cream and put up for retail sale, whether or not containing soap - Next subheading: [3402.39](https://border.bot/hs-codes/340239) Anionic organic surface-active agents, whether or not put up for retail sale: Other ## Frequently asked questions ### What does HS code 3402.31 cover? HS code 3402.31 covers anionic organic surface-active agents, whether or not put up for retail sale, linear alkylbenzene sulphonic acids and their salts. ### Which heading and chapter is HS code 3402.31 in? HS code 3402.31 is in heading 34.02 (organic surface-active agents (other than soap); surface-active preparations, washing preparations (including auxiliary washing preparations) and cleaning preparations, whether or not containing soap, other than those of heading 34.01) in chapter 34 (soap, organic surface-active agents, washing preparations, lubricating preparations, artificial waxes, prepared waxes, polishing or scouring preparations, candles and similar articles, modelling pastes, “dental waxes” and dental preparations with a basis of plaster). ### Where are goods of heading 34.02 classified when 3402.31 doesn’t fit? Other goods of heading 34.02 are classified under 3402.39 (anionic organic surface-active agents, whether or not put up for retail sale, other), 3402.41 (other organic surface-active agents, whether or not put up for retail sale, cationic), 3402.42 (other organic surface-active agents, whether or not put up for retail sale, non-ionic), 3402.49 (other organic surface-active agents, whether or not put up for retail sale, other) or 2 others. ### Which countries’ tariffs list national lines under HS code 3402.31? National tariff lines under 3402.31 are live on border.bot for the United States (2 lines, also used by 1 other country). ## Sources and updates The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026. This page was last updated on 11 October 2026. Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling. Machine-readable: https://border.bot/hs-codes/340231.json