Trade reference
HS code reference lookup
Enter a code (e.g. 8518 or 8518.30.20.00) or an English product name to see official schedule descriptions and the code hierarchy; when one description matches several candidate classifications they are all listed for you or your broker to weigh against product specifics.
A reference lookup is not a customs classification ruling. Duty rates shown are U.S. import rates only — they are not your destination country’s rates.
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Chapter 35 — 4 Albuminoidal substances; modified starches; glues; enzymes · Section VI
Entries: 49
| Code | Level | Official description | Unit | US duty (MFN / pref. / col.2) |
|---|---|---|---|---|
| 3501 | HS4 heading | Casein, caseinates and other casein derivatives; casein glues: | — | |
| 3501.10 | HS6 subheading | Casein: | — | |
| 3501.10.10.00 | US 10-digit | Milk protein concentrate | kg, kg msc | 0.37¢/kg / Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 12¢/kg |
| 3501.10.50.00 | US 10-digit | Other | kg, kg msc | Free / — / Free |
| 3501.90 | HS6 subheading | Other: | — | |
| 3501.90.20.00 | US 10-digit | Casein glues | kg | 6% / Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 30% |
| 3501.90.60.00 | US 10-digit | Other | kg, kg msc | 0.37¢/kg / Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 12.1¢/kg |
| 3502 | HS4 heading | Albumins (including concentrates of two or more whey proteins, containing by weight more than 80 percent whey proteins, calculated on the dry matter), albuminates and other albumin derivatives: | — | |
| 3502.11.00.00 | US 10-digit | Dried | kg | 47.6¢/kg / Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P, PA,PE,S,SG) / 59.5¢/kg |
| 3502.19.00.00 | US 10-digit | Other | kg | 9.7¢/kg / Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P, PA,PE,S,SG) / 24.3¢/kg |
| 3502.20.00.00 | US 10-digit | Milk albumin, including concentrates of two or more whey proteins | kg, kg msc | Free / — / Free |
| 3502.90.00.00 | US 10-digit | Other | kg | Free / — / Free |
| 3503.00 | HS6 subheading | Gelatin (including gelatin in rectangular (including square) sheets, whether or not surfaceworked or colored) and gelatin derivatives; isinglass; other glues of animal origin, excluding casein glues of heading 3501: | — | |
| 3503.00.10.00 | US 10-digit | Fish glue | kg | 1.2¢/kg + 1.5% / Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 17.6¢/kg + 25% |
| 3503.00.20.00 | US 10-digit | Valued under 88 cents per kg | kg | 1.2¢/kg + 3.2% / Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P, PA,PE,S,SG) / 5.5¢/kg + 20% |
| 3503.00.40.00 | US 10-digit | Valued 88 cents or more per kg | kg | 2.8¢/kg + 3.8% / Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM, P, PA,PE,S,SG) / 15.4¢/kg + 20% |
| 3503.00.55 | US 8-digit | Other | 2.8¢/kg + 3.8% / Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 15.4¢/kg + 20% | |
| 3503.00.55.10 | US 10-digit | Edible gelatin | kg | — |
| 3503.00.55.20 | US 10-digit | Photographic gelatin | kg | — |
| 3503.00.55.50 | US 10-digit | Other | kg | — |
| 3504.00 | HS6 subheading | Peptones and their derivatives; other protein substances and their derivatives, not elsewhere specified or included; hide powder, whether or not chromed: | — | |
| 3504.00.10.00 | US 10-digit | Protein isolates | kg | 5% / Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 20% |
| 3504.00.50 | US 8-digit | Other | kg | 4% / Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 30.5% |
| 3504.00.50.10 | US 10-digit | Certified organic | kg | — |
| 3504.00.50.50 | US 10-digit | Other | kg | — |
| 3504.00.50.80 | US 10-digit | Other | kg | — |
| 3505 | HS4 heading | Dextrins and other modified starches (for example, pregelatinized or esterified starches); glues based on starches, or on dextrins or other modified starches: | — | |
| 3505.10.00 | US 8-digit | Dextrins and other modified starches | 0.7¢/kg / Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 6.6¢/kg | |
| 3505.10.00.15 | US 10-digit | Derived from potato starch | kg | — |
| 3505.10.00.20 | US 10-digit | Other | kg | — |
| 3505.10.00.40 | US 10-digit | Derived from corn (maize) starch | kg | — |
| 3505.10.00.45 | US 10-digit | Derived from potato starch | kg | — |
| 3505.10.00.92 | US 10-digit | Other | kg | — |
| 3505.20.00.00 | US 10-digit | Glues | kg | 2.1¢/kg + 2.9% / Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 17.6¢/kg + 25% |
| 3506 | HS4 heading | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg: | — | |
| 3506.10 | HS6 subheading | Products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg: | — | |
| 3506.10.10.00 | US 10-digit | Animal glue, including casein glue, but not including fish glue | kg | 6.5% / Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 30.4% |
| 3506.10.50.00 | US 10-digit | Other | kg | 2.1% / Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 20% |
| 3506.91 | HS6 subheading | Adhesives based on polymers of headings 3901 to 3913 or on rubber: | — | |
| 3506.91.10.00 | US 10-digit | Optically clear free-film adhesives and optically clear curable liquid adhesives of a kind used solely or principally for the manufacture of flat panel displays or touch-sensitive screen panels | kg | Free / — / 20% |
| 3506.91.50.00 | US 10-digit | Other | kg | 2.1% / Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 20% * |
| 3506.99.00.00 | US 10-digit | Other | kg | 2.1% / Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 20% * |
| 3507 | HS4 heading | Enzymes; prepared enzymes not elsewhere specified or included: | — | |
| 3507.10.00.00 | US 10-digit | Rennet and concentrates thereof | kg | Free / — / Free |
| 3507.90 | HS6 subheading | Other: | — | |
| 3507.90.20.00 | US 10-digit | Pencillin G amidase | kg | Free / — / 25% |
| 3507.90.70 | US 8-digit | Other | Free / — / 25% * | |
| 3507.90.70.10 | US 10-digit | Enzymes – proteases, amylases, lipases, cellulases, pectinases, oxidases, and catalases | kg | — |
| 3507.90.70.80 | US 10-digit | Other | kg | — |
Browse by chapter
Chapters 01–97 of the Harmonized System (US chapters 98/99 are national legislation and not included).
Section I — Live Animals; Animal Products
Section II — Vegetable Products
- 06 Live trees and other plants; bulbs, roots and the like; cut flowers and ornamental foliage
- 07 Edible vegetables and certain roots and tubers
- 08 Edible fruit and nuts; peel of citrus fruit or melons
- 09 Coffee, tea, maté and spices
- 10 Cereals
- 11 Products of the milling industry; malt; starches; inulin; wheat gluten
- 12 Oil seeds and oleaginous fruits; miscellaneous grains, seeds and fruit; industrial or medicinal plants; straw and fodder
- 13 Lac; gums; resins and other vegetable saps and extracts
- 14 Vegetable plaiting materials; vegetable products not elsewhere specified or included
Section III — Animal, Vegetable Or Microbial Fats And Oils And Their Cleavage Products; Prepared Edible Fats; Animal Or Vegetable Waxes
Section IV — Prepared Foodstuffs; Beverages, Spirits And Vinegar; Tobacco And Manufactured Tobacco Substitutes; Products, Whether Or Not Containing Nicotine, Intended For Inhalation Without Combustion; Other Nicotine Containing Products Intended For The Intake Of Nicotine Into The Human Body
- 16 Preparations of meat, of fish, of crustaceans, molluscs or other aquatic invertebrates, or of insects
- 17 Sugars and sugar confectionery
- 18 Cocoa and cocoa preparations
- 19 3 Preparations of cereals, flour, starch or milk; bakers' wares
- 20 Preparations of vegetables, fruit, nuts or other parts of plants
- 21 Miscellaneous edible preparations
- 22 Beverages, spirits and vinegar
- 23 Residues and waste from the food industries; prepared animal feed
- 24 Tobacco and manufactured tobacco substitutes; products whether or not containing nicotine, intended for inhalation without combustion; other nicotine containing products intended for the intake of nicotine into the human body
Section V — Mineral Products
Section VI — Products Of The Chemical Or Allied Industries
- 28 Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes
- 29 Organic chemicals
- 30 Pharmaceutical products
- 31 Fertilizers
- 32 Tanning or dyeing extracts; tannins and their derivatives; dyes, pigments and other coloring matter; paints and varnishes; putty and other mastics; inks
- 33 Essential oils and resinoids; perfumery, cosmetic or toilet preparations
- 34 Soap, organic surface-active agents, washing preparations, lubricating preparations, artificial waxes, prepared waxes, polishing or scouring preparations, candles and similar articles, modeling pastes,"dental waxes" and dental preparations with a basis of plaster
- 35 4 Albuminoidal substances; modified starches; glues; enzymes
- 36 Explosives; pyrotechnic products; matches; pyrophoric alloys; certain combustible preparations
- 37 Photographic or cinematographic goods
- 38 Miscellaneous chemical products
Section VII — Plastics And Articles Thereof; Rubber And Articles Thereof
Section VIII — Raw Hides And Skins, Leather, Furskins And Articles Thereof; Saddlery And Harness; Travel Goods, Handbags And Similar Containers; Articles Of Animal Gut (Other Than Silkworm Gut)
Section IX — Wood And Articles Of Wood; Wood Charcoal; Cork And Articles Of Cork; Manufactures Of Straw, Of Esparto Or Of Other Plaiting Materials; Basketware And Wickerwork
Section X — Pulp Of Wood Or Of Other Fibrous Cellulosic Material; Recovered (Waste And Scrap) Paper Or Paperboard; Paper And Paperboard And Articles Thereof
Section XI — Textiles And Textile Articles
- 50 Silk
- 51 Wool, fine or coarse animal hair; horsehair yarn and woven fabric
- 52 Cotton
- 53 Other vegetable textile fibers; paper yarn and woven fabrics of paper yarn
- 54 Man-made filaments; strip and the like of man-made textile materials
- 55 Man-made staple fibers
- 56 Wadding, felt and nonwovens; special yarns; twine, cordage, ropes and cables and articles thereof
- 57 Carpets and other textile floor coverings
- 58 Special woven fabrics; tufted textile fabrics; lace; tapestries; trimmings; embroidery
- 59 Impregnated, coated, covered or laminated textile fabrics; textile articles of a kind suitable for industrial use
- 60 Knitted or crocheted fabrics
- 61 Articles of apparel and clothing accessories, knitted or crocheted
- 62 Articles of apparel and clothing accessories, not knitted or crocheted
- 63 Other made up textile articles; needlecraft sets; worn clothing and worn textile articles; rags
Section XII — Footwear, Headgear, Umbrellas, Sun Umbrellas, Walking-Sticks, Seat-Sticks, Whips, Riding-Crops And Parts Thereof; Prepared Feathers And Articles Made Therewith; Artificial Flowers; Articles Of Human Hair
Section XIII — Articles Of Stone, Plaster, Cement, Asbestos, Mica Or Similar Materials; Ceramic Products; Glass And Glassware
Section XIV — Natural Or Cultured Pearls, Precious Or Semiprecious Stones, Precious Metals, Metals Clad With Precious Metal, And Articles Thereof; Imitation Jewelry; Coin
Section XV — Base Metals And Articles Of Base Metal
- 72 Iron and steel
- 73 Articles of iron or steel
- 74 Copper and articles thereof
- 75 7 Nickel and articles thereof
- 76 Aluminum and articles thereof
- 77 (Reserved for possible future use)
- 78 Lead and articles thereof
- 79 Zinc and articles thereof
- 80 Tin and articles thereof
- 81 Other base metals; cermets; articles thereof
- 82 Tools, implements, cutlery, spoons and forks, of base metal; parts thereof of base metal
- 83 Miscellaneous articles of base metal
Section XVI — Machinery And Mechanical Appliances; Electrical Equipment; Parts Thereof; Sound Recorders And Reproducers, Television Image And Sound Recorders And Reproducers, And Parts And Accessories Of Such Articles
Section XVII — Vehicles, Aircraft, Vessels And Associated Transport Equipment
- 86 Railway or tramway locomotives, rolling stock and parts thereof; railway or tramway track fixtures and fittings and parts thereof; mechanical (including electro-mechanical) traffic signaling equipment of all kinds
- 87 Vehicles other than railway or tramway rolling stock, and parts and accessories thereof
- 88 Aircraft, spacecraft, and parts thereof
- 89 Ships, boats and floating structures
Section XVIII — Optical, Photographic, Cinematographic, Measuring, Checking, Precision, Medical Or Surgical Instruments And Apparatus; Clocks And Watches; Musical Instruments; Parts And Accessories Thereof
Section XIX — Arms And Ammunition; Parts And Accessories Thereof
Section XX — Miscellaneous Manufactured Articles
- 94 Furniture; bedding, mattresses, mattress supports, cushions and similar stuffed furnishings; luminaires and lighting fittings, not elsewhere specified or included; illuminated signs, illuminated nameplates and the like; prefabricated buildings
- 95 Toys, games and sports equipment; parts and accessories thereof
- 96 Miscellaneous manufactured articles
Section XXI — Works Of Art, Collectors' Pieces And Antiques
What this data covers — and what it does not
- International layer: HS chapters 01–97 with 4-digit headings and 6-digit subheadings (HS 2022 edition) — the part shared by every member country’s tariff schedule.
- US layer: 8-digit rate lines and 10-digit statistical suffixes of the US HTS, clearly badged; the duty columns are US import rates for reference only.
- China layer: PRC 2026 tariff schedule 8-digit lines with official Chinese names and MFN/ordinary rates, matched to international rows by shared HS6 prefix; provisional (△), agreement, quota, VAT/consumption and 10-digit customs numbers are not in scope.
- Not included: the EU’s 8-digit CN codes, other countries’ national extensions, WCO Explanatory Notes, and US chapters 98/99 (national legislation).
- Descriptions are English-only. Classification of a real product needs the General Rules of Interpretation plus material, composition, use and processing details — treat every result as a candidate, not a ruling.
Official verification
For declarations, pre-classification or current rates, use an official channel:
Frequently asked
Can I declare with the code I find here?
No — this is a reference lookup. Candidate codes, official descriptions and hierarchy are informational, not a customs classification ruling. Formal classification applies the General Rules of Interpretation to material, composition, use and processing; ask your customs authority for a binding ruling when needed.
Why does one product name return several codes?
That's normal. The same description appears at different levels (heading/subheading/statistical suffix) and under different chapters — cotton, for example, lives in the yarn, fabric and apparel chapters alike. The tool lists every candidate instead of guessing one answer for you.
Whose 8- and 10-digit codes are these?
The international Harmonized System only standardizes the first six digits (2-digit chapter + 4-digit heading + 6-digit subheading). The 8/10-digit codes here are US HTS national extensions and are labelled as such; China uses an 8-digit tariff schedule and the EU an 8-digit CN code — neither is in this dataset.
Are the duty rates shown what I'd pay importing to my country?
No. The rate columns are US import duty (General MFN / Special preferential / Column 2) — they apply to imports into the United States and are shown for reference only. Check the official tariff service of your destination country for actual rates.
How does Chinese search work?
Chinese terms are matched verbatim against the official Chinese product names in the PRC 2026 tariff schedule — no machine translation, no guessed codes. Colloquial names may miss; try a more formal name or English.
How fresh is the data?
The snapshot is the USITC's 2026 HTS Revision 22 (effective 2026-10-30); the page always shows the release and its effective date and warns when the snapshot grows stale. Use the official live service for filings.