Chapter 16 is the chapter in the HS classification system for 'preparations of meat, of fish, of crustaceans, molluscs or other aquatic invertebrates,' covering aquatic products that have been processed by cooking, curing, smoking, canning, etc. This chapter does not include unprocessed aquatic products that have only been simply frozen, fresh, chilled or dried (classified under Chapter 3), nor does it include molluscs that have only undergone primary processing such as washing or shelling. The core of Chapter 16 lies in 'depth of processing,' i.e., through heat treatment, seasoning or sealed preservation, the products acquire the characteristics of being directly edible or suitable for long-term storage. Heading 1605 covers 'other prepared or preserved aquatic invertebrates,' including molluscs (such as clams, oysters, scallops, squid), crustaceans (such as shrimp, crab) and echinoderms, etc. Products under this heading are typically cooked, seasoned, canned, smoked or made into prepared foods, but do not include unprocessed products that have only been frozen, dried or salted. Under 1605, subheadings are further divided by specific species, such as 1605.10 for crab preparations, 1605.20 for shrimp preparations, 1605.30 for lobster preparations, 1605.40 for other crustacean preparations, and 1605.5 for mollusc preparations. The first 2 digits '16' represent Chapter 16, i.e., preparations of meat, of fish, of crustaceans, molluscs or other aquatic invertebrates. The 3rd-4th digits '05' represent heading 1605, i.e., other prepared or preserved aquatic invertebrates. The 5th-6th digits '56' represent subheading 1605.56, specifically referring to clam preparations. In the HS code hierarchy, the first 2 digits are the chapter, the 3rd-4th digits are the heading, and the 5th-6th digits are the subheading (under the HS six-digit international standard), and countries may further subdivide to 8-10 digits. 1605.56 specifically distinguishes processed preparations of clams (including Venus clams, short-necked clams, hard clams, etc.) from other molluscs (such as oysters, scallops, mussels), facilitating customs statistics and trade management. Clam preparations are classified under 1605.56 rather than 0307 (molluscs) of Chapter 3 or other subheadings of 1605, the core reason being the depth of processing. If clams have only been frozen, dried or salted, they should be classified under Chapter 3; if they have undergone preparation or preservation such as cooking, seasoning or canning, they are classified under Chapter 16. Under 1605, they are further subdivided by specific species: clam preparations correspond to 1605.56, while oyster preparations are 1605.51, scallop preparations are 1605.52, mussel preparations are 1605.53, squid and cuttlefish preparations are 1605.54, octopus preparations are 1605.55, and other molluscs are 1605.59. Therefore, the correct subheading classification depends on the animal species and the method of processing.

Product Name: Fill in the specific name of the commodity, such as 'canned clam meat,' 'seasoned clams,' 'smoked clams,' etc., which must be consistent with the actual product, and avoid writing vaguely 'seafood products.' Brand Type: Fill in the brand attribute, such as 'no brand,' 'domestic brand,' 'foreign brand (OEM production),' 'foreign brand (other),' etc., selected according to the actual labeling situation. Method of Preparation or Preservation: Describe the processing technique in detail, such as 'boiled then canned,' 'seasoned then vacuum-packed,' 'smoked then frozen,' etc., which must reflect that it has undergone preparation or preservation treatment. Ingredient Content: Fill in the percentage of clam meat and other ingredients, such as 'clam meat 80%, water 15%, salt 5%,' used to determine whether it is a pure preparation or a mixed preparation. Packaging Specifications: Fill in the packaging form and net weight, such as 'canned, 200 grams per can,' 'vacuum bag, 500 grams per bag,' which affects customs inspection and statistics. Brand (Chinese and Foreign Names): Fill in the Chinese and foreign names of the commodity brand; if there is no brand, fill in 'none.' GTIN Code: If there is a Global Trade Item Number (GTIN), fill it in; if not, fill in 'none.' Production Date: Fill in the specific production date (year/month/day), used for food safety traceability. Product Name: Seasoned canned clams; Brand Type: Foreign brand (OEM production); Method of Preparation or Preservation: Clam meat cleaned, steamed, seasoned (salt, sugar, monosodium glutamate), canned and sealed, high-temperature sterilized; Ingredient Content: Clam meat 75%, water 20%, salt 3%, sugar 2%; Packaging Specifications: Canned, net weight 200 grams per can, 24 cans per box; Brand: OCEAN DELIGHT (Chinese: 海洋喜悦); GTIN Code: 12345678901234; Production Date: 2025-03-15. Mistakenly classifying merely frozen clams under 1605.56, when they should actually be classified under 0307.71 or 0307.79. Confusing clams with oysters, scallops, etc., and incorrectly using 1605.51 or 1605.52. The declaration element 'Method of Preparation or Preservation' is filled in too simply, such as only writing 'processed,' leading to customs questioning.

The core criteria for classification are the depth of processing and the animal species. First, clams must have undergone processing beyond simple freezing, drying or salting, such as cooking, seasoning, canning, smoking, etc., to be classified under Chapter 16. Second, under 1605, the subheading is determined according to the specific mollusc species: clams (including Venus clams, short-necked clams, hard clams, etc.) are classified under 1605.56. If the product is a mixture of molluscs, it must be determined according to the principal component or the General Rules. In addition, attention must be paid to the difference between Chapter 3 and Chapter 16: Chapter 3 covers unprocessed or merely primary-processed molluscs, while Chapter 16 covers prepared or preserved products. 0307.71 Live, fresh or chilled clams: This code covers live, fresh or chilled clams that have not been prepared or preserved; while 1605.56 covers clam preparations that have been cooked, seasoned, canned, etc. 0307.79 Other clams (frozen, dried, salted): This code covers frozen, dried or salted clams, which are still unprocessed or primary-processed; 1605.56 requires further preparation or preservation. 1605.51 Oyster preparations: This code specifically refers to preparations of oysters, while 1605.56 specifically refers to clam preparations; the animal species are different. 1605.52 Scallop preparations: This code covers preparations of scallops (including bay scallops, Zhikong scallops, etc.), which belong to a different subheading from clams. 1605.59 Other mollusc preparations: This code is a residual subheading covering mollusc preparations not elsewhere specified, such as sea snails, abalone, etc.; clams already have a specific subheading and should not be classified here. Does the processing method go beyond freezing, drying or salting? Is the animal species clams (Venus clams, short-necked clams, hard clams, etc.)? Has it undergone preparation or preservation such as cooking, seasoning or canning? Is it mixed with other molluscs? What is the principal component? Is it possible to be classified under Chapter 3 or other subheadings of 1605?

How do I look up the HS code for clam preparations? First determine whether the commodity has been prepared or preserved (such as cooked, seasoned, canned); if so, it is classified under Chapter 16; then according to the animal species, clams correspond to 1605.56. It is recommended to use the Customs Administration's 'Import and Export Tariff' or HS database, enter the keyword 'clam products' or '蛤蜊制品' to search, and verify the subheading notes. Which code should frozen clam meat be classified under? If the clams have only been shelled and frozen, without cooking, seasoning or other preparation, they should be classified under Chapter 3, specifically 0307.79 (other frozen molluscs). Only clams that have been prepared or preserved are classified under 1605.56. Are the codes for canned clams and seasoned clams the same? Yes, as long as they have been prepared or preserved (such as canned or seasoned), they are all classified under 1605.56. However, if the product is a mixture of molluscs, it must be classified according to the principal component, which may involve 1605.59. What is the difference between 1605.56 and 1605.59? 1605.56 specifically refers to clam preparations, while 1605.59 is the residual subheading for other mollusc preparations, including sea snails, abalone, sea urchins, etc. If clams are the principal component of the product, it should be classified under 1605.56; if it is a mixture and the principal component cannot be distinguished, it may be classified under 1605.59. How should the method of preparation or preservation be filled in during declaration? The process should be described in detail, such as 'cleaning, steaming, seasoning, canning, sterilization,' and avoid writing only 'processed' or 'prepared.' At the same time, indicate whether high-temperature sterilization, vacuum packaging, etc. have been used, to prove compliance with the requirements of Chapter 16. If clam products are exported to the EU, is the HS code the same? The international HS six-digit code 1605.56 is globally uniform, but the EU may extend it to 8 or 10 digits (such as 1605.56.10) to distinguish different packaging or uses. When exporting, it is necessary to check the EU TARIC database to confirm the specific suffix. If the clam content in a clam product is less than 50%, can it still be classified under 1605.56? If the clam content is less than 50% and it is mixed with other ingredients, it may be classified according to the principal component. For example, if meat is the principal component, it may be classified under other headings of Chapter 16; if clams are still the most predominant component, it may be classified under 1605.56. It is recommended to refer to General Rule 3 (b). How do I look up the tariff rate for HS code 1605.56? Tariff rates vary by country, trade agreement and country of origin. You can check the China Customs Administration's 'Import and Export Tariff' or the destination country's customs website, enter code 1605.56 to obtain the MFN rate, agreement rate, etc. Note that tariff rates change, and it is recommended to use the latest official data.