Chapter 03 covers fish, crustaceans, molluscs and other aquatic invertebrates, including live, fresh, chilled, frozen, dried, salted, in brine, smoked and other processed forms (but cooked, fried or other deeply processed products fall under Chapter 16). This chapter is a core chapter in international trade of aquatic products, involving complex classification issues such as distinguishing farmed from wild-caught products and determining the degree of processing. Heading 0303 covers frozen fish (excluding fish fillets and other fish meat of heading 0304), including whole fish, headless, gutted, cut into pieces, etc., but excluding fish fillets, steaks and other divided fish meat. This heading is further subdivided into multiple subheadings by fish species and is one of the most commonly used headings in frozen fish trade. First 2 digits 03 = Chapter 3 (Fish and aquatic invertebrates); digits 3-4 03 = heading 0303 (frozen fish, excluding fish fillets and other fish meat of heading 0304); digits 5-6 63 = subheading 030363, specifically frozen carp (Cyprinus carpio, Carassius carassius, Ctenopharyngodon idellus, Hypophthalmichthys spp., Cirrhinus spp., Mylopharyngodon piceus). This subheading covers various cyprinid fish species, including common carp, crucian carp, grass carp, silver carp, bighead carp, etc. The product is frozen carp, not deeply processed, not fish fillets or fish meat (0304), nor fresh or chilled fish (0302). Its species belongs to specific cyprinid species, so it is classified under 030363 rather than other frozen fish subheadings (such as 030365 frozen Atlantic salmon).

Product Name: Fill in the specific species name, such as 'frozen carp', 'frozen grass carp', etc., which must correspond to the Latin scientific name. Latin Scientific Name: Fill in the accurate Latin scientific name, such as Cyprinus carpio, for customs to confirm the species. Processing Method: Indicate 'frozen', and state whether headless, gutted, cut into pieces, etc. State: Fill in 'whole', 'headless', 'gutted', 'cut into pieces' and other specific forms. Specifications: Fill in the weight or size range per fish, such as '500-1000g/fish'. Packaging Method: Fill in the inner and outer packaging materials, such as 'inner plastic bag, outer carton'. Brand: Fill in the brand name, or 'none' if no brand. Production Date: Fill in the specific production date or batch number for traceability. Product Name: Frozen carp; Latin Scientific Name: Cyprinus carpio; Processing Method: Frozen, headless and gutted; State: Whole; Specifications: 800-1200g/fish; Packaging Method: Inner plastic bag, outer carton; Brand: None; Production Date: 2025-01-15. Mistakenly classifying frozen carp fillets under 0304, when they should actually be classified under the fish fillet subheading of 0304. Not providing the Latin scientific name, causing customs unable to confirm the species, which may delay customs clearance. Confusing frozen carp with frozen crucian carp; although both belong to 030363, the declared product name must be accurate.

The core basis for classification is: 1) the product is frozen fish; 2) it has not undergone deep processing (such as only headless, gutted, cut into pieces); 3) the species belongs to specific cyprinid species (such as Cyprinus carpio, Carassius carassius, etc.). If it is fish fillets or fish meat, it is classified under 0304; if it is fresh or chilled fish, it is classified under 0302; if it has undergone deep processing such as cooking, it is classified under Chapter 16. 0302 Fresh or chilled fish: 0302 is fresh or chilled fish, 030363 is frozen fish, the key difference lies in the preservation state (temperature treatment). 0304 Fresh or chilled fish fillets and other fish meat: 0304 is fish fillets or fish meat (even if frozen), 030363 is whole fish or cut into pieces but not filleted. 0305 Dried, salted or in brine fish; smoked fish: 0305 is dried, salted, smoked fish, 030363 is frozen fish, different processing methods. 0303.65 Frozen Atlantic salmon: 030365 is salmon, 030363 is cyprinid fish, different species. 1604 Prepared fish: 1604 is fish that has undergone deep processing such as cooking, frying, etc., 030363 is only frozen. Is it confirmed that the product is in frozen state? Is it confirmed that the species is a specific cyprinid species? Is it confirmed that it has not been processed into fish fillets or fish meat? Is the accurate Latin scientific name provided? Is the processing method (headless, gutted, etc.) clearly declared?

Are both frozen carp and frozen crucian carp classified under 030363? Yes, subheading 030363 covers various cyprinid fish species, including carp (Cyprinus carpio), crucian carp (Carassius carassius), grass carp (Ctenopharyngodon idellus), etc. However, the specific species and Latin scientific name must be indicated during declaration for accurate customs statistics. Does the code change after frozen carp is headless and gutted? No, simple processing such as headless, gutted, cut into pieces still falls under 030363, as long as it is not processed into fish fillets or fish meat. If cut into fillets, it is classified under 0304. How to query the tariff rate for 030363? You can query by entering HS code 030363 along with the country of origin, trade mode and other information on the official website of the General Administration of Customs of China, the International Trade Single Window, or professional tariff query platforms. Tariff rates are subject to policy adjustments; it is recommended to refer to the latest published rates. Is the Latin scientific name mandatory during declaration? Yes, the Latin scientific name is an important basis for customs to confirm the species, especially for subheadings such as 030363 that are subdivided by species. Providing an accurate scientific name can avoid classification disputes and customs clearance delays. How to distinguish frozen carp from frozen fish fillets? Frozen carp is whole or cut into pieces but not filleted, classified under 030363; frozen fish fillets are boneless, spine-removed fillet-shaped fish meat, classified under 0304. The key is whether it has undergone filleting processing. If frozen carp is salted, what is the code? If only salted without freezing, it is classified under 0305; if salted and then frozen, it needs to be judged based on the degree of processing. Usually, salted and then frozen may still be classified under 0305, but specific analysis is required. What are the regulatory conditions for 030363? Importing frozen carp usually requires an animal and plant quarantine permit, official quarantine certificate from the exporting country, etc. Specific regulatory conditions can be queried in the 'Import and Export Tariff' and regulatory condition code table published by the General Administration of Customs. Does cross-border e-commerce sales of frozen carp apply this code? Yes, cross-border e-commerce imports of frozen carp also apply 030363, but note that cross-border e-commerce retail imported goods may be subject to different tax policies and must comply with inspection and quarantine requirements.