Harmonized System Code Classification

The first two digits of the HS code "84" represent nuclear reactors, boilers, machines, mechanical appliances, and parts thereof.

Specifically, this chapter includes the following main categories:

• Nuclear reactors, boilers, steam generators, turbines, engines, pumps, compressors, machine tools, machine tools, agricultural machinery, construction machinery, industrial robots, and parts thereof.
• Electrical machinery and parts thereof, including generators, transformers, electric motors, wires and cables, switchgear, lighting equipment, electron tubes, semiconductor devices, telecommunications equipment, radio and television equipment, etc.

Reason for classification:

This chapter is classified based on the function and purpose of the product, i.e., whether the product is used for nuclear energy utilization, energy conversion, power drive, material processing, or the generation, transmission, and reception of electrical signals. It covers various mechanical and electrical equipment that are essential to industrial production and modern society.

In short, if the product is used to generate, convert, transmit, or utilize energy, or to perform mechanical processing, material handling, or electrical signal processing, it is likely to fall under Chapter 84 of the HS code.

The first four digits of the HS code: 8403

Classification description: Central heating boilers (excluding those under heading 8402) and parts thereof.

The six-digit explanation:

HS code: 8403.90

Classification: Central heating boilers (excluding those under heading 8402) and parts thereof

Meaning: Refers to parts of central heating boilers (excluding those under heading 8402).

8-10 digit explanation:

HS code: 8403900000

Classification: Central heating boilers (not under heading 8402) and parts thereof

Explanation: This HS code corresponds to central heating boilers (not under heading 8402) and their parts.

Examples of products: * Gas central heating boiler * Electric central heating boiler * Parts of central heating boiler (e.g. burner, control valve, heat exchanger) * Components used in central heating systems (e.g. pipes, fittings, thermostats)