Chapter 73 covers articles of iron or steel, including semi-finished and finished products such as plates, bars, tubes, etc., but excludes ferrous waste and scrap (Chapter 72) and certain specific machinery or vehicles (Chapters 84-87). This chapter focuses on finished steel products, such as structural components, containers, cables, etc., widely used in construction, engineering, and manufacturing. Heading 7308 covers iron or steel structures and parts thereof, such as bridges, towers, lattice masts, roofs, door and window frames, etc., whether or not processed (e.g., drilled, bent, welded), but excludes articles assembled to have the character of goods of other headings. This heading mainly pertains to iron or steel structures for construction or engineering. First 2 digits 73: indicates Chapter 73, articles of iron or steel. 3rd-4th digits 08: indicates heading 7308, iron or steel structures and parts. 5th-6th digits 20: indicates subheading 730820, towers and lattice masts. Towers usually refer to independent or supporting iron or steel structures, such as transmission towers, communication towers; lattice masts refer to lattice components made of steel bars, angles, etc. This subheading specifically covers these articles, whether or not assembled. The product is a steel structure tower, a typical iron or steel structure used for support or load-bearing, conforming to the description of heading 7308. Adjacent codes such as 730810 (bridges) or 730830 (door and window frames) have different uses, hence classified under 730820.
Chapter
Chapter 73 covers articles of iron or steel, including semi-finished and finished products such as plates, bars, tubes, etc., but excludes ferrous waste and scrap (Chapter 72) and certain specific machinery or vehicles (Chapters 84-87). This chapter focuses on finished steel products, such as structural components, containers, cables, etc., widely used in construction, engineering, and manufacturing.
Heading
Heading 7308 covers iron or steel structures and parts thereof, such as bridges, towers, lattice masts, roofs, door and window frames, etc., whether or not processed (e.g., drilled, bent, welded), but excludes articles assembled to have the character of goods of other headings. This heading mainly pertains to iron or steel structures for construction or engineering.
Digit Breakdown
First 2 digits 73: indicates Chapter 73, articles of iron or steel. 3rd-4th digits 08: indicates heading 7308, iron or steel structures and parts. 5th-6th digits 20: indicates subheading 730820, towers and lattice masts. Towers usually refer to independent or supporting iron or steel structures, such as transmission towers, communication towers; lattice masts refer to lattice components made of steel bars, angles, etc. This subheading specifically covers these articles, whether or not assembled.
Classification Basis
The product is a steel structure tower, a typical iron or steel structure used for support or load-bearing, conforming to the description of heading 7308. Adjacent codes such as 730810 (bridges) or 730830 (door and window frames) have different uses, hence classified under 730820.
📝 Declaration Elements
Product Name: The specific name of the declared product, such as 'steel structure tower', 'transmission tower', etc., must match the actual item. Material: Specify the specific material of the steel, such as 'carbon steel', 'alloy steel', etc., and the grade (e.g., Q235). Specification and Model: Fill in key parameters such as height, weight, cross-sectional dimensions of the tower, and model. Use: Explain the specific use of the tower, such as 'transmission line support', 'communication base station', etc. Processing Method: Describe the processing technique, such as 'welding', 'bolting', 'hot-dip galvanizing', etc. Brand: If there is a brand, declare the brand name; if no brand, fill in 'none'. Quantity: Declare the quantity and unit, such as '10 units', '5000 kilograms'. Product Name: Steel structure tower; Material: Carbon steel Q235; Specification and Model: Height 50 meters, weight 12 tons, cross-sectional dimensions 1.5m×1.5m; Use: Transmission line support; Processing Method: Welded and hot-dip galvanized; Brand: None; Quantity: 2 units. Material declaration is not specific, such as only writing 'steel', which may lead to classification disputes. Use description is too broad, without specifying the specific application scenario. Processing method is not stated, which may affect the judgment of whether it is further processed.
Product Name
The specific name of the declared product, such as 'steel structure tower', 'transmission tower', etc., must match the actual item.
⚠️ Only writing 'steel product' or 'tower', which is too general.
Material
Specify the specific material of the steel, such as 'carbon steel', 'alloy steel', etc., and the grade (e.g., Q235).
⚠️ Only writing 'steel', without providing specific material or grade.
Specification and Model
Fill in key parameters such as height, weight, cross-sectional dimensions of the tower, and model.
⚠️ Incomplete specification, such as only writing height, ignoring other dimensions.
Use
Explain the specific use of the tower, such as 'transmission line support', 'communication base station', etc.
⚠️ Vague use description, such as 'used in construction'.
Processing Method
Describe the processing technique, such as 'welding', 'bolting', 'hot-dip galvanizing', etc.
⚠️ Not indicating whether further processing has been done.
Brand
If there is a brand, declare the brand name; if no brand, fill in 'none'.
⚠️ Ignoring brand declaration or providing false information.
Quantity
Declare the quantity and unit, such as '10 units', '5000 kilograms'.
⚠️ Wrong unit, such as mistakenly filling 'units' as 'pieces'.
Material declaration is not specific, such as only writing 'steel', which may lead to classification disputes.
Use description is too broad, without specifying the specific application scenario.
Processing method is not stated, which may affect the judgment of whether it is further processed.
🎯 Classification Logic
The core basis for classification is whether the product conforms to the description of heading 7308, i.e., iron or steel structures and parts thereof. As an independent structure used for support or load-bearing, a tower is typically made of steel sections welded or bolted together, and is a typical iron or steel structure. If the tower is equipped with mechanical devices or electrical equipment, it may be classified under other headings. 730810 Bridges and bridge sections: 730810 specifically refers to bridges and parts thereof, while 730820 is towers and lattice masts, with different uses. 730830 Doors, windows and their frames and thresholds: 730830 is used for building door and window frames, while 730820 is used for large structures such as towers. 730840 Scaffolding, formwork, etc.: 730840 is for construction scaffolding or formwork, while 730820 is for permanent tower structures. 730890 Other iron or steel structures and parts: 730890 is for other iron or steel structures not elsewhere specified, while 730820 specifically refers to towers and lattice masts. Is it made of iron or steel? Is it a tower or lattice mast? Is it used for support or load-bearing? Has it undergone further processing? Is it equipped with other mechanical or electrical devices?
Basis
The core basis for classification is whether the product conforms to the description of heading 7308, i.e., iron or steel structures and parts thereof. As an independent structure used for support or load-bearing, a tower is typically made of steel sections welded or bolted together, and is a typical iron or steel structure. If the tower is equipped with mechanical devices or electrical equipment, it may be classified under other headings.
Confused Codes：
730810 - Bridges and bridge sections
730810 specifically refers to bridges and parts thereof, while 730820 is towers and lattice masts, with different uses.
730830 - Doors, windows and their frames and thresholds
730830 is used for building door and window frames, while 730820 is used for large structures such as towers.
730840 - Scaffolding, formwork, etc.
730840 is for construction scaffolding or formwork, while 730820 is for permanent tower structures.
730890 - Other iron or steel structures and parts
730890 is for other iron or steel structures not elsewhere specified, while 730820 specifically refers to towers and lattice masts.
Self-Check：
✓ Is it made of iron or steel?
✓ Is it a tower or lattice mast?
✓ Is it used for support or load-bearing?
✓ Has it undergone further processing?
✓ Is it equipped with other mechanical or electrical devices?
❓ FAQ
How to inquire about the tariff rate for HS code 730820? You can check through the official website of the General Administration of Customs or the International Trade Single Window by entering code 730820 to view the latest tariff rate. Note that rates may vary by country and trade agreements; consulting a professional customs broker is recommended. Are steel structure towers and communication towers classified under the same code? Yes, as long as they are steel structure towers, regardless of whether used for power transmission or communication, they are classified under 730820. However, if they carry equipment such as antennas, they must be declared separately. How should the material be filled in during declaration? The specific material and grade of the steel should be filled in, such as 'carbon steel Q235' or 'alloy steel Q345', avoiding only writing 'steel'. Does hot-dip galvanizing affect the classification of the tower? No, hot-dip galvanizing is a surface treatment and remains classified under 730820. However, if after galvanizing it has characteristics of other headings, the classification may change. What is the export tax rebate rate for steel structure towers? The export tax rebate rate should be checked according to the latest policy, usually available on the official website of the State Administration of Taxation. It may be adjusted at different times; it is recommended to refer to the policy at the time of export. How to distinguish between 730820 and 730890? 730820 specifically refers to towers and lattice masts, while 730890 is for other iron or steel structures not elsewhere specified. If the product is clearly a tower, it should be classified under 730820. What should be included in the specification and model during declaration? Key parameters such as height, weight, cross-sectional dimensions, and model should be included for accurate customs identification. If the tower is imported as a complete set of parts, how to declare? It should be declared as a complete structure under 730820, and noted as parts in the declaration elements, while providing information on the assembled state.
Q: How to inquire about the tariff rate for HS code 730820?
A: You can check through the official website of the General Administration of Customs or the International Trade Single Window by entering code 730820 to view the latest tariff rate. Note that rates may vary by country and trade agreements; consulting a professional customs broker is recommended.
Q: Are steel structure towers and communication towers classified under the same code?
A: Yes, as long as they are steel structure towers, regardless of whether used for power transmission or communication, they are classified under 730820. However, if they carry equipment such as antennas, they must be declared separately.
Q: How should the material be filled in during declaration?
A: The specific material and grade of the steel should be filled in, such as 'carbon steel Q235' or 'alloy steel Q345', avoiding only writing 'steel'.
Q: Does hot-dip galvanizing affect the classification of the tower?
A: No, hot-dip galvanizing is a surface treatment and remains classified under 730820. However, if after galvanizing it has characteristics of other headings, the classification may change.
Q: What is the export tax rebate rate for steel structure towers?
A: The export tax rebate rate should be checked according to the latest policy, usually available on the official website of the State Administration of Taxation. It may be adjusted at different times; it is recommended to refer to the policy at the time of export.
Q: How to distinguish between 730820 and 730890?
A: 730820 specifically refers to towers and lattice masts, while 730890 is for other iron or steel structures not elsewhere specified. If the product is clearly a tower, it should be classified under 730820.
Q: What should be included in the specification and model during declaration?
A: Key parameters such as height, weight, cross-sectional dimensions, and model should be included for accurate customs identification.
Q: If the tower is imported as a complete set of parts, how to declare?
A: It should be declared as a complete structure under 730820, and noted as parts in the declaration elements, while providing information on the assembled state.
⚠️ 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.