Chapter 16 is the major category in the HS classification system for 'preparations of meat, of fish, of crustaceans, molluscs or other aquatic invertebrates.' This chapter covers processed animal food products (such as cooked, cured, smoked, canned, etc.), but excludes animal products that are only simply frozen, chilled, or fresh (classified in Chapters 2 and 3). The core of this chapter lies in 'depth of processing,' i.e., products whose basic characteristics have been changed through non-simple processing. Heading 1605 covers 'crustaceans, molluscs and other aquatic invertebrates, prepared or preserved by other methods.' This heading includes molluscs (such as octopus, squid, clams, oysters, scallops, etc.) and aquatic invertebrates (such as sea cucumbers, sea urchins, etc.) that have been processed by cooking, curing, smoking, canning, etc., but excludes molluscs that are only simply frozen or fresh (classified in Chapter 3). Code 160559 is a six-digit subheading: the first 2 digits '16' represent Chapter 16 (preparations of meat, of fish, of crustaceans, molluscs or other aquatic invertebrates). Digits 3-4 '05' represent heading 1605 (crustaceans, molluscs and other aquatic invertebrates, prepared or preserved by other methods). Digits 5-6 '59' are the subheading, where '5' indicates mollusc preparations and '9' indicates 'other,' i.e., mollusc preparations other than the specifically named molluscs such as oysters, scallops, mussels, squid, octopus, etc. Therefore, 160559 specifically refers to other mollusc preparations not specifically named in 160551 through 160558. This product is classified under 160559 because it is a mollusc (not a crustacean, not an aquatic invertebrate) and has been prepared or preserved (not simply frozen or fresh), and it does not belong to the molluscs specifically named in subheadings 160551 through 160558 (such as oysters, scallops, mussels, squid, octopus, etc.). If it were simply frozen or fresh, it should be classified in Chapter 3; if it were a crustacean preparation, it should be classified under other subheadings of 1605.

Product Name: Fill in the specific name of the product, such as 'seasoned octopus preparation,' 'smoked oysters,' etc., which must be consistent with the actual product. Method of Preparation or Preservation: Describe the processing technique in detail, such as 'cooked then canned,' 'salted,' 'smoked,' 'seasoned,' etc. Ingredient Content: List the main ingredients and percentages, such as mollusc content, seasonings, preservatives, etc. Packaging Specifications: Fill in the packaging form and specifications, such as 'canned, net weight 200g/can,' 'vacuum bag, 500g/bag.' Brand: Fill in the product brand; if there is no brand, indicate 'no brand.' Production Date: Fill in the production date in year-month-day format. Shelf Life: Fill in the shelf life duration, such as '24 months.' Product Name: Seasoned octopus preparation; Method of Preparation: Octopus cleaned, cooked, then seasoned with soy sauce, sugar, chili, vacuum packed, pasteurized; Ingredient Content: Octopus 80%, soy sauce 10%, sugar 5%, chili 3%, others 2%; Packaging Specifications: Vacuum bag, net weight 500g/bag; Brand: XX Brand; Production Date: 2025-03-01; Shelf Life: 12 months; Storage Conditions: Room temperature, away from light. Mistakenly classifying simply frozen molluscs under 160559, when they should actually be classified in Chapter 3. Failing to distinguish between molluscs and crustaceans, leading to incorrect classification under other subheadings of 1605. Unclear description of the method of preparation, such as the word 'processed' making it impossible to determine whether cooking or preservation has occurred.

Core criteria for classification: 1) Whether the product is a mollusc (such as octopus, squid, clams, oysters, scallops, etc.); 2) Whether it has been prepared or preserved (such as cooked, cured, smoked, canned, etc.), rather than simply frozen, chilled, or fresh; 3) Whether it belongs to the molluscs specifically named in subheadings 160551 through 160558 (oysters, scallops, mussels, squid, octopus, etc.). If it is not specifically named and has been prepared or preserved, it is classified under 160559. 0307 Live, fresh, chilled, frozen, dried, salted or brined molluscs: Chapter 3 covers primary products that have only undergone simple processing; 160559 covers products that have undergone deep processing such as cooking and seasoning. 160551 Oyster preparations: 160551 specifically refers to oyster preparations; if it is another mollusc (such as octopus), it is classified under 160559. 160554 Squid and cuttlefish preparations: 160554 specifically refers to squid and cuttlefish preparations; if it is another mollusc (such as clams), it is classified under 160559. 160555 Octopus preparations: 160555 specifically refers to octopus preparations; if it is another mollusc (such as sea cucumber), it is classified under 160559. 1605 Crustaceans, molluscs and other aquatic invertebrates, prepared or preserved by other methods: 1605 is the heading; 160559 is its subheading, and further distinction of specific varieties is required. Has the product undergone deep processing such as cooking, curing, or smoking? Is the product a mollusc, rather than a crustacean or aquatic invertebrate? Does the product not belong to the varieties specifically named in 160551 through 160558? Does the method of preparation exclude simple freezing, chilling, or fresh? Is the mollusc the main ingredient in the composition?

How to check the tariff rate for 160559? You can check the latest tariff rate through the official website of the General Administration of Customs of China, the International Trade Single Window, or third-party query platforms by entering HS code 160559 along with the country of origin, trade mode, and other information. Note that tariff rates are subject to policy adjustments, and it is recommended to rely on official real-time data. Which HS code should frozen octopus be classified under? If frozen octopus has only been frozen and not undergone deep processing such as cooking or seasoning, it should be classified in Chapter 3 (specifically 0307.43 or 0307.49, etc.). If it has been cooked, seasoned, etc., it is classified under 160555 (octopus preparations). What is the difference between 160559 and 160555? 160555 specifically refers to octopus preparations, while 160559 refers to other mollusc preparations (such as clams, sea cucumbers, etc.). If the product is an octopus preparation, it should be classified under 160555 first; if it is another mollusc preparation, it is classified under 160559. How to describe the method of preparation when declaring? The processing technique should be described in detail, such as 'cleaned, then cooked, then seasoned with soy sauce and sugar, vacuum packed, pasteurized.' Avoid vague terms such as 'processed' or 'treated' to facilitate accurate customs classification. Can mollusc preparations be classified under 1605? Yes, but two conditions must be met: first, they must be prepared or preserved (not simply frozen); second, they must be molluscs. If they are crustaceans or aquatic invertebrates, they are classified under other subheadings of 1605. How should ready-to-eat mollusc snacks sold via cross-border e-commerce be classified? If the snack has been processed by seasoning, cooking, etc., and the main ingredient is molluscs (such as octopus, squid, etc.), it is usually classified under 1605. The specific subheading depends on the type of mollusc: octopus under 160555, squid under 160554, and others under 160559. What are the regulatory conditions for 160559? Regulatory conditions vary by country and typically involve import and export inspection and quarantine, food hygiene standards, etc. It is recommended to consult the 'Import and Export Tariff' and 'Schedule of Regulatory Conditions' of China Customs, or consult a professional customs broker. How to classify if the product is a mixed mollusc preparation? If none of the various molluscs in the mixed preparation are specifically named in 160551 through 160558, it is classified under 160559. If it contains a specifically named mollusc (such as octopus) and that is the main ingredient, it may be classified according to the specific name.