Chapter 16 is a dedicated chapter in the HS classification system for "preparations of meat, of fish, of crustaceans, molluscs or other aquatic invertebrates," covering deeply processed aquatic products that have been cooked, cured, smoked, canned, etc. This chapter does not include animal products that are only simply frozen, chilled, or fresh (classified under Chapter 3), nor does it include composite foods made from raw materials of other chapters. The core characteristic is that the degree of processing exceeds the scope permitted by Chapter 3, and animal-derived ingredients are the main components. Heading 1605 covers "other aquatic invertebrates prepared or preserved," including sea cucumber, sea urchin, jellyfish, squid, octopus, clam, scallop, etc. These products must undergo non-simple processing such as cooking, seasoning, canning, or smoking, and are not listed under other more specific headings. Under heading 1605, they are subdivided by species, and 160558 specifically refers to sea cucumber preparations, distinct from other mollusc or crustacean preparations. The first 2 digits "16" represent Chapter 16, i.e., the chapter on prepared animal food products; digits 3-4 "05" represent heading 1605, i.e., other aquatic invertebrates prepared or preserved; digits 5-6 "58" represent subheading 160558, specifically referring to sea cucumber preparations. Among these, "58" is the specific identifier for sea cucumber in the HS code and is not shared with other invertebrates. The entire code hierarchy narrows from chapter to heading to subheading, ensuring that sea cucumber preparations are distinguished from other aquatic product preparations. Sea cucumber preparations are classified under 160558 because they undergo deep processing such as cooking, seasoning, or canning, exceeding the scope of simple preservation under Chapter 3, and they are aquatic invertebrates rather than fish (0305) or crustaceans (the earlier part of 1605). At the same time, sea cucumber is not a mollusc such as squid or octopus, so it is not classified under 160554-160556. If sea cucumber is only frozen or salted, it is classified under Chapter 3.

Product name: The specific name of the declared commodity, such as "ready-to-eat sea cucumber," "dried sea cucumber," "canned sea cucumber," etc., and it must be consistent with the actual goods. Processing method: Explain the processing method of the sea cucumber, such as boiling, seasoning, canning, smoking, drying, etc., and it must be specific. Ingredient content: The solid content of sea cucumber and the proportion of auxiliary materials (such as salt, sugar, broth), expressed as a percentage. Packaging specifications: Retail packaging or industrial packaging, such as "200 g/can" or "10 kg/carton," affecting classification and supervision. Brand: The brand or trademark of the commodity; if there is no brand, fill in "none," used for customs intellectual property protection. Preservation method: Storage at room temperature, refrigerated, or frozen, affecting the judgment of processing depth. Ready-to-eat or not: Clarify whether it can be consumed directly; ready-to-eat sea cucumber is usually seasoned and sterilized. Customs declaration commodity item: Product name: Ready-to-eat seasoned sea cucumber Processing method: Boiled, then seasoned, high-temperature sterilized, canned Ingredient content: Sea cucumber solid content >= 60%, broth (water, salt, sugar) <= 40% Packaging specifications: 200 g/can, 24 cans/carton Brand: XX brand Preservation method: Room temperature storage Ready-to-eat or not: Yes HS code: 16055800 Mistakenly declaring salted sea cucumber (classified under Chapter 3) as 160558, because salting does not change the basic characteristics. Ignoring the content of auxiliary materials; if the broth exceeds the solid content, it may be regarded as a soup preparation rather than a sea cucumber preparation. Mistakenly classifying dried sea cucumber under 160558; if it is only dried and not cooked, it should be classified under Chapter 3.

The core basis for classification is the degree of processing and the main ingredient. Sea cucumber preparations must undergo processing beyond the simple preservation permitted by Chapter 3 (such as freezing, salting, drying), such as cooking, seasoning, canning, or smoking. At the same time, sea cucumber must be the main ingredient; if it is only an ingredient and its content is relatively low, it may be classified under other food headings. In addition, sea cucumber must be distinguished from other aquatic invertebrates to ensure the specificity of subheading 160558. 0305 Dried, salted or brined fish and aquatic invertebrates: 0305 covers simply salted or dried sea cucumber that has not been cooked or seasoned, whereas 160558 requires deep processing such as cooking or canning. 160554 Preparations of cuttlefish and squid: 160554 specifically refers to cuttlefish and squid; sea cucumber is not a cephalopod mollusc, so it is classified under 160558. 160556 Preparations of molluscs such as clams and scallops: 160556 covers bivalve molluscs; sea cucumber is an echinoderm, so the classification is different. 160510 Preparations of crab: 160510 is for preparations of the crustacean crab; sea cucumber is an echinoderm among invertebrates, so the heading is different. 2106 Other food preparations: If sea cucumber is only a secondary ingredient and does not retain its sea cucumber characteristics, it may be classified under 2106, but 160558 requires sea cucumber to be the main ingredient. Has it undergone deep processing such as cooking, seasoning, or canning? Is sea cucumber the main ingredient and does it retain its basic characteristics? Is it only frozen, salted, or dried? If so, classify under Chapter 3. Does it belong to echinoderms rather than molluscs or crustaceans? Is the packaging retail packaging, and is it ready-to-eat?

How do I inquire about the HS code for sea cucumber preparations? First confirm the processing state: if only frozen, salted, or dried, classify under Chapter 3 (such as 0305 or 0308); if cooked, seasoned, or canned, classify under 160558. You may refer to the Import and Export Tariff or use a customs classification advance ruling. What is the difference in HS codes between ready-to-eat sea cucumber and dried sea cucumber? Ready-to-eat sea cucumber is usually seasoned and sterilized and is classified under 160558; dried sea cucumber, if only dried and not cooked, is classified under 0305 or 0308. If dried sea cucumber is seasoned and then dried, it may be classified under 160558. Which code should canned sea cucumber be classified under? Canned sea cucumber has been canned and sterilized and is deeply processed, so it is classified under 160558. If the can contains other aquatic animals and sea cucumber is not the main ingredient, it must be classified according to the main ingredient. Why can salted sea cucumber not be classified under 160558? Salting is simple preservation permitted by Chapter 3 and does not change the basic characteristics of sea cucumber, so it is classified under 0305 or 0308. 160558 requires processing beyond simple preservation, such as cooking or seasoning. What declaration elements are required for exporting sea cucumber preparations? It is necessary to declare the product name, processing method, ingredient content, packaging specifications, brand, preservation method, whether it is ready-to-eat, etc. The specific requirements are subject to customs requirements; it is recommended to use the "Single Window" for standardized declaration. Are the HS codes for sea cucumber preparations and sea cucumber extracts the same? No. If sea cucumber extract is used as a raw material for health products, it may be classified under 1302 or 2106; if used as food, it must be determined according to processing and ingredients. 160558 refers only to sea cucumber preparations for direct consumption. How should HS codes be selected for sea cucumber preparations sold through cross-border e-commerce? According to the actual state of the product: choose 160558 for ready-to-eat seasoned sea cucumber; 0305 for dried sea cucumber; 0308 for salted sea cucumber. Accurate declaration elements must be provided to avoid order rejection or penalties due to classification errors. How do I distinguish between 160558 and 160559 when classifying sea cucumber preparations? 160559 is for preparations of other aquatic invertebrates; sea cucumber has a dedicated subheading 160558, so it should be classified under 160558 first. Only sea cucumber preparations that do not fall under 160558 should be considered for 160559.