Chapter 03 covers fish, crustaceans, molluscs and other aquatic invertebrates, including live, fresh, chilled, frozen, dried, salted or smoked products, as well as aquatic animal products for human consumption. This chapter does not include processed fish products (such as canned fish, fish balls, etc.), nor does it include mammals such as whales and dolphins (classified under Chapter 01) or processed aquatic plant products (classified under Chapter 12 or Chapter 20). Heading 0303 specifically covers frozen fish, but excludes frozen fish fillets and other fish meat (classified under 0304). This heading covers whole frozen fish, headless and gutted frozen fish, frozen fish blocks, etc., whether or not bone-in. However, frozen fish products that have undergone further processing (such as breading, seasoning, partial cooking) should be classified under Chapter 16. The first 2 digits 03 represent Chapter 03 "Fish, crustaceans, molluscs and other aquatic invertebrates." The 3rd-4th digits 03 represent heading 0303 "Frozen fish, excluding fish fillets and other fish meat of 0304." The 5th-6th digits 57 represent subheading 030357, specifically "Frozen eels." Among these, subheading 0303.5 is eels, 0303.57 is frozen eels, distinguished from 0303.51 (fresh or chilled eels), etc. This product is frozen eel, not subjected to seasoning, breading or other deep processing, and belongs to frozen whole fish or headless and gutted fish, therefore classified under 0303. If it were fresh or chilled eel, it should be classified under 0302; if it were frozen eel fillets, it should be classified under 0304; if it were seasoned or cooked eel products, it should be classified under 1604.

Product Name: Fill in the Chinese and foreign language names of the commodity, which should accurately reflect the product attributes, such as "Frozen Eel." Latin Scientific Name: Provide the Latin scientific name of the eel, such as Anguilla japonica (Japanese eel), Anguilla anguilla (European eel), etc. Method of Production or Preservation: Describe the processing state of the commodity, such as "frozen," and indicate whether it is headless, gutted, etc. State: Describe the appearance state of the commodity, such as whole, headless and gutted, bone-in, etc. Specifications: Fill in individual weight, length or packaging specifications, such as "500-800 grams each." Brand: If there is a brand, declare the brand name; if no brand, fill in "None." Production Date: Fill in the production or catch date of the product, in year-month-day format. Shelf Life: Fill in the shelf life or best-before date of the product. Product Name: Frozen Eel; Latin Scientific Name: Anguilla japonica; Method of Production or Preservation: Frozen, headless and gutted; State: Whole, bone-in; Specifications: 500-800 grams each; Brand: None; Production Date: 2023-08-01; Shelf Life: 24 months. Mistakenly classifying frozen eel fillets under 030357, when they should actually be classified under 0304. Not declaring the Latin scientific name, causing customs to be unable to accurately determine the species. Incomplete description of production method, such as not indicating "headless and gutted," which may affect classification.

The core basis for classification is the frozen state, degree of processing and form of the commodity. Frozen whole eels or headless and gutted eels, because they have not undergone seasoning, breading or other deep processing, and are not fillets or other fish meat, are classified under 0303.57. If fresh or chilled eel, classified under 0302; if frozen eel fillets, classified under 0304; if seasoned or cooked eel products, classified under 1604. 0302.57 Fresh or chilled eels: 0302 is fresh or chilled fish, 0303 is frozen fish. The difference lies in the preservation state: fresh or chilled has not been frozen, while frozen has undergone freezing treatment. 0304.89 Other frozen fish fillets: 0304 is fish fillets and other fish meat, 0303 is whole fish or headless and gutted fish. If eel is cut into fillets, it should be classified under 0304. 1604.19 Other prepared or preserved fish: 1604 is fish products that have undergone seasoning, cooking or other deep processing, 0303 is fish that is only frozen and not deeply processed. If eel has been seasoned or cooked, it should be classified under 1604. 0303.89 Other frozen fish: 0303.89 is other frozen fish, 0303.57 is frozen eels. The difference lies in the species: eels specifically refer to fish of the order Anguilliformes. Confirm whether the commodity is in a frozen state. Confirm whether it is whole fish or headless and gutted, rather than fillets. Confirm that it has not undergone seasoning, breading or other deep processing. Verify whether the Latin scientific name is of the genus Anguilla. Check whether the declaration elements are complete and accurate.

What is the difference in HS codes between frozen eels and frozen eel fillets? Frozen eels (whole or headless and gutted) are classified under 030357, while frozen eel fillets are classified under 0304 (the specific subheading depends on the fish species). The key distinction is the form of the commodity: whole fish or headless and gutted fish belong to 0303, while fish cut into fillets belong to 0304. How do I check the specific tariff rate for frozen eels? Tariff rates vary by country, trade agreement and country of origin. It is recommended to check the latest rates through the General Administration of Customs website, the International Trade Single Window, or by consulting a professional customs broker. Value-added tax and consumption tax should also be considered. When declaring frozen eels, is the Latin scientific name mandatory? Yes, the Latin scientific name is an important declaration element that helps customs accurately identify the species, especially when endangered species controls are involved. For example, the European eel (Anguilla anguilla) is listed in CITES Appendix, and an additional permit for import/export of endangered species is required. If frozen eel has been seasoned but not cooked, which code should it be classified under? If frozen eel has been seasoned (such as with salt, spices) but not cooked, it may still be classified under 0303, but if the seasoning has changed its essential character, it may be classified under 1604. It is recommended to judge based on the specific processing method and customs classification decisions. What inspection and quarantine requirements are needed for importing frozen eels? Imported frozen eels must comply with the inspection and quarantine requirements of the exporting country and China, and typically require a certificate of origin, health certificate, catch certificate, etc. For details, consult the General Administration of Customs' "Measures for the Supervision and Administration of Inspection and Quarantine of Imported Aquatic Products." For cross-border e-commerce sales of frozen eels, how should the HS code be filled in? For cross-border e-commerce sales of frozen eels, if they are whole frozen, 030357 should be filled in. Attention should be paid to the difference between personal items and goods trade, as well as the relevant requirements in the cross-border e-commerce retail import commodity list. What are the differences in declaration elements between frozen eels and fresh eels? Fresh eels are classified under 0302, and when declaring, "fresh or chilled" should be indicated, while frozen eels should indicate "frozen." In addition, fresh eels typically have a short shelf life and may require cold chain transport certification. If the frozen eel is boneless and skinless, where should it be classified? Boneless and skinless frozen eel, if maintained in whole form, can still be classified under 030357; if cut into fillets, it is classified under 0304. If further processed into surimi, it is classified under 0304 or 1604, depending on the degree of processing.