# HS code 3904.50: Vinylidene chloride polymers

> HS code 3904.50 covers vinylidene chloride polymers. It sits in heading 39.04 (polymers of vinyl chloride or of other halogenated olefins, in primary forms) in chapter 39 (plastics and articles thereof). Other goods of heading 39.04 are classified under 3904.10 (poly(vinyl chloride), not mixed with any other substances), 3904.21 (other poly(vinyl chloride), non-plasticised), 3904.22 (other poly(vinyl chloride), plasticised), 3904.30 (vinyl chloride-vinyl acetate copolymers) or 4 others.

Source: https://staging.border.bot/hs-codes/390450
Last updated: 13 October 2026

[HS codes](https://staging.border.bot/hs-codes) / [Chapter 39](https://staging.border.bot/hs-codes/39) / [39.04](https://staging.border.bot/hs-codes/3904) / [3904.50](https://staging.border.bot/hs-codes/390450)

## Key facts

- HS code: 3904.50
- Covers: Vinylidene chloride polymers
- Heading: [39.04: Polymers of vinyl chloride or of other halogenated olefins, in primary forms](https://staging.border.bot/hs-codes/3904)
- Chapter: [39: Plastics and articles thereof](https://staging.border.bot/hs-codes/39)
- Edition: HS2022
- Duty rates: [Set by each country’s tariff](https://staging.border.bot/countries)

## What this code covers

HS code 3904.50 covers vinylidene chloride polymers.

The legal text of the subheading is “Vinylidene chloride polymers”, in HS2022.

## What it doesn’t cover

Other goods of heading 39.04 are classified under 3904.10 (poly(vinyl chloride), not mixed with any other substances), 3904.21 (other poly(vinyl chloride), non-plasticised), 3904.22 (other poly(vinyl chloride), plasticised), 3904.30 (vinyl chloride-vinyl acetate copolymers) or 4 others.

- [3904.10](https://staging.border.bot/hs-codes/390410) Poly(vinyl chloride), not mixed with any other substances
- [3904.21](https://staging.border.bot/hs-codes/390421) Other poly(vinyl chloride): Non-plasticised
- [3904.22](https://staging.border.bot/hs-codes/390422) Other poly(vinyl chloride): Plasticised
- [3904.30](https://staging.border.bot/hs-codes/390430) Vinyl chloride-vinyl acetate copolymers
- [3904.40](https://staging.border.bot/hs-codes/390440) Other vinyl chloride copolymers
- [3904.61](https://staging.border.bot/hs-codes/390461) Fluoropolymers: Polytetrafluoroethylene
- [3904.69](https://staging.border.bot/hs-codes/390469) Fluoropolymers: Other
- [3904.90](https://staging.border.bot/hs-codes/390490) Other

## How it is structured

3904.50 is a six-digit subheading. Its first two digits, 39, are the chapter; the first four, 3904, are heading 39.04; the last two, 50, identify the subheading within the heading.

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

- Chapter 39: Plastics and articles thereof
- Heading 39.04: Polymers of vinyl chloride or of other halogenated olefins, in primary forms
- Subheading 3904.50: Vinylidene chloride polymers

## In other countries

No national tariff lines under 3904.50 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 3904.50 at six digits and add their own digits after it.

- Previous subheading: [3904.40](https://staging.border.bot/hs-codes/390440) Other vinyl chloride copolymers
- Next subheading: [3904.61](https://staging.border.bot/hs-codes/390461) Fluoropolymers: Polytetrafluoroethylene

## Frequently asked questions

### What does HS code 3904.50 cover?

HS code 3904.50 covers vinylidene chloride polymers.

### Which heading and chapter is HS code 3904.50 in?

HS code 3904.50 is in heading 39.04 (polymers of vinyl chloride or of other halogenated olefins, in primary forms) in chapter 39 (plastics and articles thereof).

### Where are goods of heading 39.04 classified when 3904.50 doesn’t fit?

Other goods of heading 39.04 are classified under 3904.10 (poly(vinyl chloride), not mixed with any other substances), 3904.21 (other poly(vinyl chloride), non-plasticised), 3904.22 (other poly(vinyl chloride), plasticised), 3904.30 (vinyl chloride-vinyl acetate copolymers) or 4 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/390450.json