Chapter 84 is a core chapter in the HS classification system, covering various mechanical equipment, machine devices, power equipment, and their parts. This chapter has an extremely broad scope, ranging from steam boilers and internal combustion engines to office machinery and automatic data processing equipment. Its core characteristic is that goods must have mechanical functions, complete specific operations through mechanical motion, and typically do not rely on electricity as the primary power source (electric machinery is still classified in this chapter). This chapter is an important chapter for the classification of industrial manufactured goods, involving various machines from raw material processing to finished product manufacturing. Heading 8475 covers machines specifically for manufacturing or assembling electronic tubes, electron beam tubes, fluorescent screen tubes, and other electronic devices, as well as machines for manufacturing or assembling incandescent lamps, discharge lamps, and other electric light sources. Machines under this heading typically involve complex physical and chemical processes, such as vacuum sealing, electrode assembly, glass sealing, etc. The core criterion is that the machine's use must be directly related to the manufacture of electronic tubes or electric light sources, rather than being general-purpose machinery. Code 847521 is a six-digit subheading. The first 2 digits '84' represent Chapter 84, i.e., nuclear reactors, boilers, machinery, mechanical appliances, and their parts. Digits 3-4 '75' represent heading 8475, i.e., machines for manufacturing or assembling electronic tubes, electron beam tubes, fluorescent screen tubes, incandescent lamps, discharge lamps, etc. Digits 5-6 '21' represent subheading 847521, specifically electronic tube manufacturing machines. Among them, '2' indicates the first category of products under this subheading (electronic tube manufacturing machines), and '1' is the sequential number. The overall code meaning is: special-purpose machines for manufacturing electronic tubes belonging to Chapter 84. This commodity is classified under 847521 because it is a machine specifically used for manufacturing electronic tubes, meeting the description of heading 8475. Compared with adjacent codes such as 847529 (other machines for manufacturing or assembling electronic tubes, lamps, etc.), 847521 specifically refers to electronic tube manufacturing machines, rather than lamp or discharge lamp manufacturing machines. Compared with 847590 (parts), 847521 is a complete machine, not a part. Therefore, based on the specificity of use, it is classified under this code.
Chapter
Chapter 84 is a core chapter in the HS classification system, covering various mechanical equipment, machine devices, power equipment, and their parts. This chapter has an extremely broad scope, ranging from steam boilers and internal combustion engines to office machinery and automatic data processing equipment. Its core characteristic is that goods must have mechanical functions, complete specific operations through mechanical motion, and typically do not rely on electricity as the primary power source (electric machinery is still classified in this chapter). This chapter is an important chapter for the classification of industrial manufactured goods, involving various machines from raw material processing to finished product manufacturing.
Heading
Heading 8475 covers machines specifically for manufacturing or assembling electronic tubes, electron beam tubes, fluorescent screen tubes, and other electronic devices, as well as machines for manufacturing or assembling incandescent lamps, discharge lamps, and other electric light sources. Machines under this heading typically involve complex physical and chemical processes, such as vacuum sealing, electrode assembly, glass sealing, etc. The core criterion is that the machine's use must be directly related to the manufacture of electronic tubes or electric light sources, rather than being general-purpose machinery.
Digit Breakdown
Code 847521 is a six-digit subheading. The first 2 digits '84' represent Chapter 84, i.e., nuclear reactors, boilers, machinery, mechanical appliances, and their parts. Digits 3-4 '75' represent heading 8475, i.e., machines for manufacturing or assembling electronic tubes, electron beam tubes, fluorescent screen tubes, incandescent lamps, discharge lamps, etc. Digits 5-6 '21' represent subheading 847521, specifically electronic tube manufacturing machines. Among them, '2' indicates the first category of products under this subheading (electronic tube manufacturing machines), and '1' is the sequential number. The overall code meaning is: special-purpose machines for manufacturing electronic tubes belonging to Chapter 84.
Classification Basis
This commodity is classified under 847521 because it is a machine specifically used for manufacturing electronic tubes, meeting the description of heading 8475. Compared with adjacent codes such as 847529 (other machines for manufacturing or assembling electronic tubes, lamps, etc.), 847521 specifically refers to electronic tube manufacturing machines, rather than lamp or discharge lamp manufacturing machines. Compared with 847590 (parts), 847521 is a complete machine, not a part. Therefore, based on the specificity of use, it is classified under this code.
📝 Declaration Elements
Product Name: The Chinese and English names of the declared commodity should accurately reflect the machine's use and function, such as 'electronic tube manufacturing machine'. Use: Explain what kind of electronic tubes the machine is used to manufacture, such as 'used for manufacturing vacuum electronic tubes' or 'used for manufacturing X-ray tubes'. Working Principle: Briefly describe the core working principle of the machine, such as 'manufacturing electronic tubes through vacuum sealing, electrode assembly, and other processes'. Brand: The brand or manufacturer name of the declared machine; if there is no brand, fill in 'no brand'. Model: The model of the declared machine should be consistent with the actual goods. Power: The rated power of the machine, in kilowatts or watts. CNC or Not: Indicate whether the machine is controlled by a CNC device, such as 'yes' or 'no'. Product Name: Electronic Tube Manufacturing Machine; Use: Used for manufacturing vacuum electronic tubes, completing electrode assembly and vacuum sealing; Working Principle: Electrode assembly is performed by a robotic arm, and glass sealing is completed in a vacuum environment; Brand: XXX; Model: ETM-2000; Power: 15 kilowatts; CNC or Not: Yes. Failure to specify the machine's use, leading to confusion with lamp manufacturing machines. Misclassifying electronic tube manufacturing machines under 847529 (other machines). Incomplete declaration elements, lacking working principle or use description.
Product Name
The Chinese and English names of the declared commodity should accurately reflect the machine's use and function, such as 'electronic tube manufacturing machine'.
⚠️ Misreporting as 'electronic tube sealing machine' or 'lamp manufacturing machine', leading to classification errors.
Use
Explain what kind of electronic tubes the machine is used to manufacture, such as 'used for manufacturing vacuum electronic tubes' or 'used for manufacturing X-ray tubes'.
⚠️ Only writing 'used in the electronics industry', which is too general to determine the specific subheading.
Working Principle
Briefly describe the core working principle of the machine, such as 'manufacturing electronic tubes through vacuum sealing, electrode assembly, and other processes'.
⚠️ Describing it as 'through mechanical assembly', without reflecting the special processes of electronic tube manufacturing.
Brand
The brand or manufacturer name of the declared machine; if there is no brand, fill in 'no brand'.
⚠️ Confusing brand with model, or omitting brand information.
Model
The model of the declared machine should be consistent with the actual goods.
⚠️ Incorrect model entry or inconsistency with the invoice.
Power
The rated power of the machine, in kilowatts or watts.
⚠️ Failing to provide power information, or incorrect units.
CNC or Not
Indicate whether the machine is controlled by a CNC device, such as 'yes' or 'no'.
⚠️ Confusing CNC with automation and making incorrect declarations.
Example： Product Name: Electronic Tube Manufacturing Machine; Use: Used for manufacturing vacuum electronic tubes, completing electrode assembly and vacuum sealing; Working Principle: Electrode assembly is performed by a robotic arm, and glass sealing is completed in a vacuum environment; Brand: XXX; Model: ETM-2000; Power: 15 kilowatts; CNC or Not: Yes.
Common Mistakes：
Failure to specify the machine's use, leading to confusion with lamp manufacturing machines.
Misclassifying electronic tube manufacturing machines under 847529 (other machines).
Incomplete declaration elements, lacking working principle or use description.
🎯 Classification Logic
The core basis for classification is the machine's use and function. According to General Rule 1 for the Interpretation of the HS, heading 8475 explicitly covers machines for manufacturing or assembling electronic tubes, electron beam tubes, fluorescent screen tubes, etc. Electronic tube manufacturing machines must be specifically used for the production of electronic tubes, rather than being general-purpose machinery. If a machine has multiple uses, it should be determined based on its primary use. In addition, it is necessary to distinguish electronic tube manufacturing machines from parts; 847521 is a complete machine, while parts should be classified under 847590. 847529 Other machines for manufacturing or assembling electronic tubes, lamps, etc.: 847529 covers other machines for manufacturing or assembling electronic tubes, lamps, discharge lamps, etc., while 847521 specifically refers to electronic tube manufacturing machines. If the machine is mainly used for manufacturing lamps, it is classified under 847529. 847590 Parts: 847590 refers to parts of machines under heading 8475, while 847521 refers to complete machines. If the imported item is a special part of an electronic tube manufacturing machine, it should be classified under 847590. 848620 Machines for manufacturing semiconductor devices or electronic integrated circuits: 848620 is used for manufacturing semiconductor devices or integrated circuits, while 847521 is used for manufacturing electronic tubes. Electronic tubes and semiconductor devices differ in principle and structure, so their classification differs. 847989 Other machines not elsewhere specified: 847989 refers to machines with independent functions, not specified under other headings. If an electronic tube manufacturing machine does not meet the description of 8475, it may be classified under 847989, but usually 8475 is more specific. Is the machine specifically used for manufacturing electronic tubes? Does it include the core processes of electronic tube manufacturing? Is it confused with lamp manufacturing machines? Is it a complete machine rather than a part? Is it confused with semiconductor manufacturing equipment?
Basis
The core basis for classification is the machine's use and function. According to General Rule 1 for the Interpretation of the HS, heading 8475 explicitly covers machines for manufacturing or assembling electronic tubes, electron beam tubes, fluorescent screen tubes, etc. Electronic tube manufacturing machines must be specifically used for the production of electronic tubes, rather than being general-purpose machinery. If a machine has multiple uses, it should be determined based on its primary use. In addition, it is necessary to distinguish electronic tube manufacturing machines from parts; 847521 is a complete machine, while parts should be classified under 847590.
Confused Codes：
847529 - Other machines for manufacturing or assembling electronic tubes, lamps, etc.
847529 covers other machines for manufacturing or assembling electronic tubes, lamps, discharge lamps, etc., while 847521 specifically refers to electronic tube manufacturing machines. If the machine is mainly used for manufacturing lamps, it is classified under 847529.
847590 - Parts
847590 refers to parts of machines under heading 8475, while 847521 refers to complete machines. If the imported item is a special part of an electronic tube manufacturing machine, it should be classified under 847590.
848620 - Machines for manufacturing semiconductor devices or electronic integrated circuits
848620 is used for manufacturing semiconductor devices or integrated circuits, while 847521 is used for manufacturing electronic tubes. Electronic tubes and semiconductor devices differ in principle and structure, so their classification differs.
847989 - Other machines not elsewhere specified
847989 refers to machines with independent functions, not specified under other headings. If an electronic tube manufacturing machine does not meet the description of 8475, it may be classified under 847989, but usually 8475 is more specific.
Self-Check：
✓ Is the machine specifically used for manufacturing electronic tubes?
✓ Does it include the core processes of electronic tube manufacturing?
✓ Is it confused with lamp manufacturing machines?
✓ Is it a complete machine rather than a part?
✓ Is it confused with semiconductor manufacturing equipment?
❓ FAQ
How are electronic tube manufacturing machines and lamp manufacturing machines distinguished in HS codes? Electronic tube manufacturing machines are classified under 847521, and lamp manufacturing machines under 847529. The key distinction lies in the machine's use: electronic tube manufacturing machines are used to produce electronic tubes (such as vacuum tubes and X-ray tubes), while lamp manufacturing machines are used to produce incandescent lamps or discharge lamps. The use and working principle must be clearly stated during declaration. If an electronic tube manufacturing machine is second-hand, will the HS code change? The HS code remains unchanged, still 847521. However, the import of second-hand equipment may involve other regulatory conditions, such as filing for used mechanical and electrical products. The declaration must indicate 'second-hand' and provide relevant supporting documents. How are parts of electronic tube manufacturing machines classified? Parts should be classified under 847590, i.e., parts of machines under heading 8475. However, note that if the parts themselves are general-purpose parts (such as bolts and bearings), they are classified according to material. Only special-purpose parts are classified under 847590. How can I check the import tariff rate for 847521? The latest tariff rate can be checked through the official website of the General Administration of Customs of China or the International Trade Single Window. Tariff rates vary due to factors such as country and trade agreements, so it is recommended to rely on official real-time data. What regulatory conditions are required for exporting electronic tube manufacturing machines? Export usually requires basic documents such as contracts, invoices, and packing lists. If technology export is involved, an export license may be required. Specific regulatory conditions can be checked in the customs tariff or by consulting a customs broker. If an electronic tube manufacturing machine also has other functions, how is it classified? According to General Rule 3 for classification, it is classified according to its primary function. If the primary function is manufacturing electronic tubes, it is classified under 847521; if the primary function is something else, it may be classified under another heading. A functional description must be provided. What is the difference between 847521 and 848620? 847521 is used for manufacturing electronic tubes, and 848620 is used for manufacturing semiconductor devices or integrated circuits. The manufacturing objects are different: electronic tubes are vacuum electronic devices, while semiconductors are solid-state electronic devices. Classification should be distinguished based on the product type.
Q: How are electronic tube manufacturing machines and lamp manufacturing machines distinguished in HS codes?
A: Electronic tube manufacturing machines are classified under 847521, and lamp manufacturing machines under 847529. The key distinction lies in the machine's use: electronic tube manufacturing machines are used to produce electronic tubes (such as vacuum tubes and X-ray tubes), while lamp manufacturing machines are used to produce incandescent lamps or discharge lamps. The use and working principle must be clearly stated during declaration.
Q: If an electronic tube manufacturing machine is second-hand, will the HS code change?
A: The HS code remains unchanged, still 847521. However, the import of second-hand equipment may involve other regulatory conditions, such as filing for used mechanical and electrical products. The declaration must indicate 'second-hand' and provide relevant supporting documents.
Q: How are parts of electronic tube manufacturing machines classified?
A: Parts should be classified under 847590, i.e., parts of machines under heading 8475. However, note that if the parts themselves are general-purpose parts (such as bolts and bearings), they are classified according to material. Only special-purpose parts are classified under 847590.
Q: How can I check the import tariff rate for 847521?
A: The latest tariff rate can be checked through the official website of the General Administration of Customs of China or the International Trade Single Window. Tariff rates vary due to factors such as country and trade agreements, so it is recommended to rely on official real-time data.
Q: What regulatory conditions are required for exporting electronic tube manufacturing machines?
A: Export usually requires basic documents such as contracts, invoices, and packing lists. If technology export is involved, an export license may be required. Specific regulatory conditions can be checked in the customs tariff or by consulting a customs broker.
Q: If an electronic tube manufacturing machine also has other functions, how is it classified?
A: According to General Rule 3 for classification, it is classified according to its primary function. If the primary function is manufacturing electronic tubes, it is classified under 847521; if the primary function is something else, it may be classified under another heading. A functional description must be provided.
Q: What is the difference between 847521 and 848620?
A: 847521 is used for manufacturing electronic tubes, and 848620 is used for manufacturing semiconductor devices or integrated circuits. The manufacturing objects are different: electronic tubes are vacuum electronic devices, while semiconductors are solid-state electronic devices. Classification should be distinguished based on the product type.
⚠️ Disclaimer: HS code classification, declaration elements, tariff rates and regulatory conditions on this page are for reference only and do not constitute legal advice on customs classification. Tariff rates and regulations are subject to change; the latest announcements from the General Administration of Customs and on-site determinations shall prevail. Please consult professional customs brokers or customs authorities before import/export.