Oyster Shells
Oyster shells, empty shells from shucked oysters, a mollusc product of Chapter 3, used for lime production or poultry grit. These are classifiable under 0511.91.00 as dead aquatic animal products unfit for human consumption. Separated from live or fresh oysters in Chapter 3.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If shells are mixed with other animal products
Mixed animal waste may be classified under the residual heading for animal products.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the shells are clean and free of edible oyster meat
• Declare the intended use, such as lime production or poultry grit, to CBSA
• Verify any agricultural regulations for use in animal feed
Related Products under Tariff item 0511.91.00
Clam Processing Waste
Clam processing waste consisting of guts, shells, and siphons from clam harvesting, contaminated and unfit for human consumption. These are mollusc products of Chapter 3, classifiable under tariff item 0511.91.00 as dead aquatic animal products. Used in fishmeal production or composting.
Crab Shell Chitin Waste
Crab shell chitin waste, consisting of pre-extraction shells with residual protein, unfit for human consumption. These crustacean waste products from Chapter 3 are classifiable under 0511.91.00 as dead aquatic animal products. Raw material intended for chitin processing before chemical conversion.
Dead Frozen Tuna
Dead frozen tuna, whole fish rejected as unfit for human consumption due to quality issues, intended for rendering. These dead fish products from Chapter 3 are classifiable under 0511.91.00 as dead animals of Chapter 3. Distinct from prime frozen tuna classified under heading 0303.
Dead Lobster Carcasses
Dead lobster carcasses, empty shells and bodies post-meat extraction, unfit for human consumption. These crustacean waste products from Chapter 3 are classifiable under 0511.91.00 as dead aquatic animal products. Commonly used as bait in fisheries.
Dead Whole Crabs
Dead whole crabs, unfit due to disease or spoilage, rejected for human consumption, intended for rendering or bait. These crustacean products from Chapter 3 are classifiable under 0511.91.00 as dead animals of Chapter 3. Excludes fresh or preserved edible crabs under Chapter 3.
Dried Fish Maws
Dried fish maws, swim bladders from fish such as croaker or sturgeon, used in traditional cuisine and as gelatin sources. These are products of fish unfit for direct human consumption in their raw form, classifiable under 0511.91.00. The drying process preserves them for further processing.