Chapter 39 covers plastics and articles thereof, including polymers in primary forms, synthetic resins, chemically modified natural polymers, etc. This chapter is divided into multiple headings by polymer type, such as 3910 (silicones), 3911 (petroleum resins, etc.), 3912 (cellulose and its chemical derivatives), etc. Primary forms refer to liquid, paste, block, powder, and other unprocessed forms, including resin solutions, dispersions, etc. Heading 3911 covers petroleum resins, coumarone-indene resins, polyterpenes, polysulfides, polysulfones, and other chemical products not elsewhere specified or included, in primary forms. Petroleum resins are thermoplastic resins produced by polymerization of petroleum cracking by-products (such as C5 and C9 fractions), commonly used in adhesives, coatings, rubber additives, etc. This heading also includes other synthetic resins and chemically modified natural resins. Code 391110 is a six-digit subheading. The first 2 digits '39' represent Chapter 39 (Plastics and articles thereof). The 3rd-4th digits '11' represent heading 3911 (petroleum resins, coumarone-indene resins, etc., in primary forms). The 5th-6th digits '10' represent subheading 391110, specifically 'petroleum resins'. Therefore, 391110 specifically refers to petroleum resins in primary forms, excluding other resins under heading 3911 (such as polyterpenes, coumarone-indene resins, etc.). This commodity is petroleum resin, in primary form, and produced by polymerization of petroleum cracking by-products, which conforms to the description of heading 3911. If it were resin from other sources (such as rosin-modified resin) or not in primary form (such as finished adhesives), it might be classified under other headings (such as 3806, 3506, etc.). Therefore, 391110 is the specific code for petroleum resins.
Chapter
Chapter 39 covers plastics and articles thereof, including polymers in primary forms, synthetic resins, chemically modified natural polymers, etc. This chapter is divided into multiple headings by polymer type, such as 3910 (silicones), 3911 (petroleum resins, etc.), 3912 (cellulose and its chemical derivatives), etc. Primary forms refer to liquid, paste, block, powder, and other unprocessed forms, including resin solutions, dispersions, etc.
Heading
Heading 3911 covers petroleum resins, coumarone-indene resins, polyterpenes, polysulfides, polysulfones, and other chemical products not elsewhere specified or included, in primary forms. Petroleum resins are thermoplastic resins produced by polymerization of petroleum cracking by-products (such as C5 and C9 fractions), commonly used in adhesives, coatings, rubber additives, etc. This heading also includes other synthetic resins and chemically modified natural resins.
Digit Breakdown
Code 391110 is a six-digit subheading. The first 2 digits '39' represent Chapter 39 (Plastics and articles thereof). The 3rd-4th digits '11' represent heading 3911 (petroleum resins, coumarone-indene resins, etc., in primary forms). The 5th-6th digits '10' represent subheading 391110, specifically 'petroleum resins'. Therefore, 391110 specifically refers to petroleum resins in primary forms, excluding other resins under heading 3911 (such as polyterpenes, coumarone-indene resins, etc.).
Classification Basis
This commodity is petroleum resin, in primary form, and produced by polymerization of petroleum cracking by-products, which conforms to the description of heading 3911. If it were resin from other sources (such as rosin-modified resin) or not in primary form (such as finished adhesives), it might be classified under other headings (such as 3806, 3506, etc.). Therefore, 391110 is the specific code for petroleum resins.
📝 Declaration Elements
Product Name: The specific name of the declared commodity, such as 'petroleum resin' or 'C5 petroleum resin'. Appearance: Describe the physical state of the primary form, such as liquid, block, powder, etc. Source: Explain the source of raw materials, such as petroleum cracking C5/C9 fractions. Polymerization Method: Explain the polymerization process, such as thermal polymerization, catalytic polymerization. Softening Point: A key indicator of petroleum resin, in degrees Celsius. Color Number: Gardner color number or other colorimetric indicators. Packaging Specifications: Such as bagged, drummed, net weight, etc. Product Name: Petroleum resin; Appearance: Light yellow granules; Source: Petroleum cracking C5 fraction; Polymerization Method: Catalytic polymerization; Softening Point: 100°C; Color Number: Gardner 3; Packaging: 25kg/bag; Brand: None; Model: PR-100. Confusing petroleum resin with rosin resin, leading to classification errors. Failure to provide key indicators such as softening point, affecting customs valuation. Declared as 'adhesive' finished product, but actually primary form resin.
Product Name
The specific name of the declared commodity, such as 'petroleum resin' or 'C5 petroleum resin'.
⚠️ Mistakenly declared as 'rosin resin' or 'terpene resin'.
Appearance
Describe the physical state of the primary form, such as liquid, block, powder, etc.
⚠️ Only writing 'solid' without specifying the exact form.
Source
Explain the source of raw materials, such as petroleum cracking C5/C9 fractions.
⚠️ Failure to indicate the source, leading to classification disputes.
Polymerization Method
Explain the polymerization process, such as thermal polymerization, catalytic polymerization.
⚠️ Ignoring the polymerization method, affecting subheading determination.
Softening Point
A key indicator of petroleum resin, in degrees Celsius.
⚠️ Failure to provide softening point, making it impossible to distinguish models.
Color Number
Gardner color number or other colorimetric indicators.
⚠️ Incorrect unit for color number or not provided.
Packaging Specifications
Such as bagged, drummed, net weight, etc.
⚠️ Packaging method inconsistent with declaration.
Confusing petroleum resin with rosin resin, leading to classification errors.
Failure to provide key indicators such as softening point, affecting customs valuation.
Declared as 'adhesive' finished product, but actually primary form resin.
🎯 Classification Logic
The core basis for classification is: 1) The commodity is in primary form; 2) It is produced by polymerization of petroleum cracking by-products; 3) It belongs to petroleum resins listed under heading 3911. Other headings such as 3806 (rosin resin), 3912 (cellulose resin), etc., must be excluded. If petroleum resin is mixed with other substances, judgment should be based on the characteristics after mixing. 391110 Petroleum resins: This code, specifically for petroleum resins. 391190 Other polysulfides, etc.: Includes polyterpenes, coumarone-indene resins, etc., not from petroleum sources. 380610 Rosin resins: Rosin resin comes from pine tree secretions, not petroleum. 390110 Polyethylene: Polyethylene is a polymer of ethylene, not petroleum resin. Is it in primary form? Is it polymerized from petroleum cracking by-products? Does it belong to heading 3911? Is it mixed with other substances? Are indicators such as softening point provided?
Basis
The core basis for classification is: 1) The commodity is in primary form; 2) It is produced by polymerization of petroleum cracking by-products; 3) It belongs to petroleum resins listed under heading 3911. Other headings such as 3806 (rosin resin), 3912 (cellulose resin), etc., must be excluded. If petroleum resin is mixed with other substances, judgment should be based on the characteristics after mixing.
Confused Codes：
391110 - Petroleum resins
This code, specifically for petroleum resins.
391190 - Other polysulfides, etc.
Includes polyterpenes, coumarone-indene resins, etc., not from petroleum sources.
380610 - Rosin resins
Rosin resin comes from pine tree secretions, not petroleum.
390110 - Polyethylene
Polyethylene is a polymer of ethylene, not petroleum resin.
Self-Check：
✓ Is it in primary form?
✓ Is it polymerized from petroleum cracking by-products?
✓ Does it belong to heading 3911?
✓ Is it mixed with other substances?
✓ Are indicators such as softening point provided?
❓ FAQ
What is the difference in HS codes between petroleum resin and rosin resin? Petroleum resin is classified under 391110, and rosin resin under 380610. The main difference lies in the raw material source: petroleum resin comes from petroleum cracking by-products, while rosin resin comes from pine tree secretions. Source proof is required for classification. How to determine if petroleum resin is in primary form? Primary forms include liquid, paste, block, powder, granular, and other unprocessed forms. If it has been made into finished products of specific shapes (such as adhesive tape), it is not in primary form and should be classified under other headings. Why is the softening point important in the declaration elements of petroleum resin? The softening point is a key performance indicator of petroleum resin, affecting its use and price. Customs may determine the product model and classification based on the softening point, so it must be accurately provided during declaration. Are the HS codes for C5 petroleum resin and C9 petroleum resin the same? Both are classified under 391110 because they are both petroleum resins. However, the source (C5 or C9 fraction) must be indicated during declaration for customs statistics and valuation. If petroleum resin is mixed with other resins, how should it be classified? If the mixture still has petroleum resin as the main component and is in primary form, it is usually still classified under 391110. If the properties change after mixing, it may be classified under other headings, and judgment should be based on the specific composition. How to inquire about the tax rate for petroleum resin? It can be checked through the General Administration of Customs website or the tariff schedule. Enter HS code 391110 to view the MFN rate, general rate, etc. Tax rates may change, and the latest announcement should be consulted. What regulatory documents are required for importing petroleum resin? Basic documents such as contract, invoice, packing list, and bill of lading are usually required. If hazardous chemicals are involved, MSDS, etc., are also required. Specific requirements can be consulted with local customs. What is the export tax rebate situation for petroleum resin? The export tax rebate rate should be inquired according to the latest regulations of the State Administration of Taxation. Generally, petroleum resin can enjoy export tax rebates, and the specific rebate rate is subject to official publication.
Q: What is the difference in HS codes between petroleum resin and rosin resin?
A: Petroleum resin is classified under 391110, and rosin resin under 380610. The main difference lies in the raw material source: petroleum resin comes from petroleum cracking by-products, while rosin resin comes from pine tree secretions. Source proof is required for classification.
Q: How to determine if petroleum resin is in primary form?
A: Primary forms include liquid, paste, block, powder, granular, and other unprocessed forms. If it has been made into finished products of specific shapes (such as adhesive tape), it is not in primary form and should be classified under other headings.
Q: Why is the softening point important in the declaration elements of petroleum resin?
A: The softening point is a key performance indicator of petroleum resin, affecting its use and price. Customs may determine the product model and classification based on the softening point, so it must be accurately provided during declaration.
Q: Are the HS codes for C5 petroleum resin and C9 petroleum resin the same?
A: Both are classified under 391110 because they are both petroleum resins. However, the source (C5 or C9 fraction) must be indicated during declaration for customs statistics and valuation.
Q: If petroleum resin is mixed with other resins, how should it be classified?
A: If the mixture still has petroleum resin as the main component and is in primary form, it is usually still classified under 391110. If the properties change after mixing, it may be classified under other headings, and judgment should be based on the specific composition.
Q: How to inquire about the tax rate for petroleum resin?
A: It can be checked through the General Administration of Customs website or the tariff schedule. Enter HS code 391110 to view the MFN rate, general rate, etc. Tax rates may change, and the latest announcement should be consulted.
Q: What regulatory documents are required for importing petroleum resin?
A: Basic documents such as contract, invoice, packing list, and bill of lading are usually required. If hazardous chemicals are involved, MSDS, etc., are also required. Specific requirements can be consulted with local customs.
Q: What is the export tax rebate situation for petroleum resin?
A: The export tax rebate rate should be inquired according to the latest regulations of the State Administration of Taxation. Generally, petroleum resin can enjoy export tax rebates, and the specific rebate rate is subject to official publication.
⚠️ 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.