Chapter 03 covers fish, crustaceans, molluscs and other aquatic invertebrates, including live, fresh, chilled, frozen, dried, salted, smoked and other processed products. This chapter is the core chapter for international trade in aquatic products, involving the entire chain of fishing, aquaculture and processing. Within the chapter, products are subdivided by degree of processing and species, with emphasis on preservation methods (such as freezing) and species differences. Goods under this chapter must comply with the classification principles of the Harmonized Commodity Description and Coding System, and attention should be paid to distinguishing them from Chapter 16 (preparations). Heading 0303 specifically covers frozen fish (excluding fish fillets and other fish meat), i.e., whole fish that have been frozen, whether or not headed, gutted, finned, etc., but not further processed. This heading is subdivided by fish species, including salmon, trout, halibut, tuna, etc. Frozen means the core temperature has been reduced to below -18°C to maintain quality. This heading does not include fresh or chilled fish (0302), fish fillets (0304) or smoked fish (0305). The first 2 digits "03" represent Chapter 03, i.e., fish, crustaceans, molluscs and other aquatic invertebrates. The 3rd-4th digits "03" represent heading 0303, specifically frozen fish (excluding fish fillets and other fish meat). The 5th-6th digits "12" are the subheading, divided by fish species under 0303; 030312 specifically refers to "frozen other Pacific salmon," i.e., frozen whole fish of all Pacific salmon (genus Oncorhynchus) other than 030311 (sockeye salmon). Therefore, 030312 fully means frozen other Pacific salmon, and classification requires confirming that the species is not sockeye salmon and that it is frozen whole fish. This product is frozen whole Pacific salmon, and the species is not sockeye salmon (Oncorhynchus nerka), so it is classified under 030312. If it were fresh or chilled Pacific salmon, it should be classified under 0302; if it were fillets, under 0304; if smoked, under 0305; if sockeye salmon, under 030311. In addition, if it has been further processed or seasoned, it may be classified under Chapter 16.

Product name: The specific name of the declared commodity, which should accurately reflect the species and state, such as "frozen Pacific salmon (whole)." Latin scientific name: Provide the Latin scientific name of the species, such as Oncorhynchus keta, to ensure accurate classification. Method of production or preservation: Explain the freezing method, such as "frozen whole, gutted, not headed." State: Indicate whether whole, headed, gutted, etc., such as "whole, gutted." Specifications: Grade by weight or size, such as "2-3 kg each." Brand: If there is a brand, declare the brand name; if none, fill in "none." Production date: Indicate the production or freezing date in year/month/day format. Shelf life: Indicate the shelf life, such as "24 months." Product name: Frozen Pacific salmon (whole) Latin scientific name: Oncorhynchus keta Method of production or preservation: Frozen whole, gutted, not headed State: Whole, gutted Specifications: 2-3 kg each Brand: None Production date: 2025/01/15 Shelf life: 24 months Manufacturer: XX Fisheries Co., Ltd. Remarks: Not sockeye salmon Mistakenly classifying sockeye salmon (Oncorhynchus nerka) under 030312; it should be classified under 030311. Mistakenly classifying frozen fish fillets under 030312; they should actually be classified under 0304. Failing to provide the Latin scientific name, making it impossible for customs to accurately determine the species. Confusing "frozen" with "chilled"; chilled fish should be classified under 0302. Ignoring brand declaration, which may affect customs protection of intellectual property rights.

The core basis for classification is: 1) the product is frozen whole fish, not fillets or other processed products; 2) the species is Pacific salmon (genus Oncorhynchus), but not sockeye salmon (Oncorhynchus nerka). According to the Import and Export Tariff and the Explanatory Notes to the Harmonized System, heading 0303 covers frozen fish, and subheading 030312 is explicitly "other Pacific salmon." Therefore, as long as the three conditions of frozen, whole fish, and non-sockeye salmon are met, it is classified under 030312. 030311 Frozen sockeye salmon: Refers only to sockeye salmon (Oncorhynchus nerka); other Pacific salmon are classified under 030312. 030313 Frozen Atlantic salmon: Atlantic salmon (Salmo salar) and Danube salmon (Hucho hucho), not genus Oncorhynchus. 030214 Fresh or chilled Pacific salmon: Fresh or chilled Pacific salmon is classified under 0302; frozen is classified under 0303. 030441 Fresh or chilled Pacific salmon fillets: Fillets are classified under 0304; whole fish under 0303. 030541 Smoked Pacific salmon: Smoked fish is classified under 0305; frozen whole fish under 0303. Confirm whether the species is of the genus Oncorhynchus and not sockeye salmon. Confirm whether it is whole fish, not fillets or other cuts. Confirm that the preservation method is frozen, with a core temperature below -18°C. Confirm whether it has undergone further processing such as smoking or seasoning. Check whether the Latin scientific name is consistent with the declaration elements.

How do you distinguish frozen Pacific salmon from frozen Atlantic salmon? Pacific salmon belongs to the genus Oncorhynchus, while Atlantic salmon belongs to the genus Salmo. They can be accurately distinguished by their Latin scientific names. 030312 applies only to the genus Oncorhynchus (except sockeye salmon); Atlantic salmon is classified under 030313. Does heading removal affect the classification of frozen Pacific salmon? Heading removal does not affect classification; as long as it is still whole fish and frozen, it remains classified under 030312. However, if it is headed and then cut into fillets, it is classified under 0304. How do you distinguish sockeye salmon from other Pacific salmon? The scientific name of sockeye salmon is Oncorhynchus nerka; other Pacific salmon include chum salmon (Oncorhynchus keta), coho salmon (Oncorhynchus kisutch), etc. They can be distinguished by Latin scientific name and appearance characteristics. If frozen Pacific salmon has been salted, can it still be classified under 030312? If it is only lightly salted for preservation, it may still be classified under 0303; but if salting becomes the main preservation method, it is classified under 0305. Judgment should be based on the degree of processing. Is it necessary to provide the fishing area when declaring? Generally not required, but if endangered species or specific trade controls are involved, a fishing certificate may be required. It is recommended to consult the local customs. How can the tariff rate for 030312 be checked? You can consult the Import and Export Tariff of the People's Republic of China or check through the official website of the General Administration of Customs. Tariff rates may change due to trade agreements and annual adjustments; it is recommended to rely on the latest announcements. How should cross-border e-commerce sales of frozen Pacific salmon be declared? It must be declared in accordance with the regulatory requirements for general trade or cross-border e-commerce retail imports, with complete declaration elements provided, and attention paid to inspection and quarantine requirements. It is recommended to entrust a professional customs broker. If the frozen Pacific salmon is farmed, does the classification change? Classification does not distinguish between wild and farmed; it is still classified under 030312 according to species and processing method. However, proof of aquaculture may need to be provided at the time of declaration.