EximDataX

HS Code 2815Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash) peroxides of sodium or potassium

4 six-digit codes · Heading 15 of 50 in Chapter 28 · World Customs Organization Harmonized System

HS code 2815 is the heading traders look up when they need to classify caustic soda or caustic potash. It also covers two kinds of peroxide.

Goods answering to “Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash) peroxides of sodium or potassium” split into 4 six-digit codes, 281511 through 281530. Each one carries its own customs description, and the exact wording below is what a classification has to match. The heading is number 15 of 50 in Chapter 28, Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes, which runs to 180 six-digit codes in all.

Six-digit codes under heading 2815

HS CodeImport–export description
281511Sodium hydroxide (caustic soda); solid
281512Sodium hydroxide (caustic soda); in aqueous solution (soda lye or liquid soda)
281520Potassium hydroxide (caustic potash)
281530Peroxides of sodium or potassium

What is the HS code for caustic soda?

Caustic soda is the trade name for sodium hydroxide. Caustic potash is potassium hydroxide. Both sit in heading 2815 of the Harmonized System. The heading also holds the peroxides of sodium and of potassium, such as sodium peroxide and potassium peroxide.

You may see the same question asked as HSN code 2815 or HTS code 2815. These are national names for the same starting point. Each country adds its own extra digits after the six-digit code.

Product names can confuse people, so here is a quick guide. Soda lye and liquid caustic soda are the water-based form of sodium hydroxide. Caustic soda flakes and other dry shapes are solid sodium hydroxide.

HS code 2815: how to pick the right code

Start with the chemical, then check the form. Sodium hydroxide has two codes, because the dry form and the liquid form are split. Potassium hydroxide and the peroxides each have one code.

  • 281511: choose this for flakes and other dry sodium hydroxide
  • 281512: choose this for lye and other sodium hydroxide dissolved in water
  • 281520: choose this for any potassium hydroxide
  • 281530: choose this for sodium peroxide or potassium peroxide

What heading 2815 does not cover

Hydroxides and peroxides of magnesium, strontium and barium belong to heading 2816. Other metal hydroxides and oxides are in heading 2825. Carbonates are in heading 2836, even when they contain sodium or potassium.

Hydrogen peroxide is not a sodium or potassium peroxide. It has its own heading, 2847. Ammonia is in 2814, sulphuric acid is in 2807 and hydrochloric acid is in 2806.

Read the product label and the safety data sheet to confirm the chemical and its form. If you are still unsure, try the HS code classifier before you file.

The codes here are the world standard six-digit codes. National tariffs build on them with more digits, so one country may split solid caustic soda into several finer lines. Duties also differ from country to country, so check the tariff of the market you ship to.

Caustic soda import and export data under HS 2815

Customs records show who ships a product, and where. To see who trades caustic soda, search the records by this heading or by any one of its six-digit codes.

EximDataX shows shipment-level import and export records from official customs sources. Coverage: 43 direct customs feeds plus 184 mirror-derived countries. Named buyers and named suppliers are available in 38 of the 43 direct markets. Most markets refresh weekly and some refresh daily. You can search by HS code to see who imports and exports a product, and book a free demo.

For a closer look, open the import data or export data pages. You can also go straight to buyer data and supplier data for caustic soda.

Who ships under 2815?

EximDataX tracks the live import–export records filed under this heading and the 4 codes beneath it: named buyers, suppliers, quantities and values from official customs feeds.

See live data for 2815

Section VI: Products of the Chemical or Allied Industries, chapters 28–38.

Straight answers

HS Code 2815: common questions

What is the HS code for caustic soda?

It is heading 2815. The dry form and the solution have separate six-digit codes, shown in the guide above.

What is the HS code for liquid caustic soda (soda lye)?

Use 281512, the code for sodium hydroxide dissolved in water.

What is the HS code for caustic soda flakes or solid sodium hydroxide?

Use 281511, because flakes are a solid form of sodium hydroxide.

What is the HS code for potassium hydroxide (caustic potash)?

Potassium hydroxide is 281520.

Is hydrogen peroxide classified under HS 2815?

No. Hydrogen peroxide has its own heading, 2847. Only sodium or potassium peroxides sit under 281530.

Who imports caustic soda under HS 2815?

Search the records by this HS code on EximDataX to find the companies behind the shipments. The buyer data and import data pages show how.

Where can I find duty information for HS code 2815?

Duty rates depend on the importing country and are not listed on this page. Check that country's tariff, and confirm your code with the classifier first.

See what your buyers are buying.Then decide.

Everything we show you comes from official customs filings — records, not claims. 30 minutes. Your shipment. Your HS code. Real platform. If you don’t see something new about your market by the end of the call, we walk away. No follow-ups.

Free 3-day test account. No card on file. No funnel email sequence.