# HS code 2835.24: Phosphates, of potassium

> HS code 2835.24 covers phosphates, of potassium. It sits in heading 28.35 (phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined) in chapter 28 (inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes). Other goods of heading 28.35 are classified under 2835.10 (phosphinates (hypophosphites) and phosphonates (phosphites)), 2835.22 (phosphates, of mono- or disodium), 2835.25 (phosphates, calcium hydrogenorthophosphate (“dicalcium phosphate”)), 2835.26 (phosphates, other phosphates of calcium) or 3 others.

Source: https://staging.border.bot/hs-codes/283524
Last updated: 13 October 2026

[HS codes](https://staging.border.bot/hs-codes) / [Chapter 28](https://staging.border.bot/hs-codes/28) / [28.35](https://staging.border.bot/hs-codes/2835) / [2835.24](https://staging.border.bot/hs-codes/283524)

## Key facts

- HS code: 2835.24
- Covers: Phosphates, of potassium
- Heading: [28.35: Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined](https://staging.border.bot/hs-codes/2835)
- Chapter: [28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes](https://staging.border.bot/hs-codes/28)
- Edition: HS2022
- Duty rates: [Set by each country’s tariff](https://staging.border.bot/countries)

## What this code covers

HS code 2835.24 covers phosphates, of potassium.

The legal text of the subheading is “Phosphates: Of potassium”, read under “Phosphates”, in HS2022.

## What it doesn’t cover

Other goods of heading 28.35 are classified under 2835.10 (phosphinates (hypophosphites) and phosphonates (phosphites)), 2835.22 (phosphates, of mono- or disodium), 2835.25 (phosphates, calcium hydrogenorthophosphate (“dicalcium phosphate”)), 2835.26 (phosphates, other phosphates of calcium) or 3 others.

- [2835.10](https://staging.border.bot/hs-codes/283510) Phosphinates (hypophosphites) and phosphonates (phosphites)
- [2835.22](https://staging.border.bot/hs-codes/283522) Phosphates: Of mono- or disodium
- [2835.25](https://staging.border.bot/hs-codes/283525) Phosphates: Calcium hydrogenorthophosphate (“dicalcium phosphate”)
- [2835.26](https://staging.border.bot/hs-codes/283526) Phosphates: Other phosphates of calcium
- [2835.29](https://staging.border.bot/hs-codes/283529) Phosphates: Other
- [2835.31](https://staging.border.bot/hs-codes/283531) Polyphosphates: Sodium triphosphate (sodium tripolyphosphate)
- [2835.39](https://staging.border.bot/hs-codes/283539) Polyphosphates: Other

## How it is structured

2835.24 is a six-digit subheading. Its first two digits, 28, are the chapter; the first four, 2835, are heading 28.35; the last two, 24, identify the subheading within the heading.

Countries add their own digits after these six for their national tariff lines.

- Chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes
- Heading 28.35: Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined
- Within the heading: Phosphates
- Subheading 2835.24: Of potassium

## In other countries

No national tariff lines under 2835.24 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 2835.24 at six digits and add their own digits after it.

- Previous subheading: [2835.22](https://staging.border.bot/hs-codes/283522) Phosphates: Of mono- or disodium
- Next subheading: [2835.25](https://staging.border.bot/hs-codes/283525) Phosphates: Calcium hydrogenorthophosphate (“dicalcium phosphate”)

## Frequently asked questions

### What does HS code 2835.24 cover?

HS code 2835.24 covers phosphates, of potassium.

### Which heading and chapter is HS code 2835.24 in?

HS code 2835.24 is in heading 28.35 (phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined) in chapter 28 (inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes).

### Where are goods of heading 28.35 classified when 2835.24 doesn’t fit?

Other goods of heading 28.35 are classified under 2835.10 (phosphinates (hypophosphites) and phosphonates (phosphites)), 2835.22 (phosphates, of mono- or disodium), 2835.25 (phosphates, calcium hydrogenorthophosphate (“dicalcium phosphate”)), 2835.26 (phosphates, other phosphates of calcium) or 3 others.

## Sources and updates

The Harmonized System legal text comes from border.bot release 1 (edition HS 2022), imported from a file, and has been live since 13 October 2026.

This page was last updated on 13 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://staging.border.bot/hs-codes/283524.json