Honeycomb Marine Sponges

Honeycomb-structured natural sponges harvested from Atlantic waters, known for their durability and absorbent properties when dried. HTS 0511.99.36.00 applies to these unworked animal products not elsewhere specified, excluding edible or textile materials per Chapter notes. Used primarily in their raw form for crafting or cleaning.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3%+35.0%38%
🇲🇽Mexico3%+10.0%13%
🇨🇦Canada3%+10.0%13%
🇩🇪Germany3%+10.0%13%
🇯🇵Japan3%+10.0%13%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

0507.90.00Lower: 35% vs 38%

If for bulk unworked marine products like certain sponge waste

Sponge parings or waste not fitting 0511 may fall under 0507 as ivory, bone, horn, etc., unfit for human consumption.

6302.60.00Lower: 26.6% vs 38%

If toilet or kitchen linens with sponge inserts

Incorporation into textile articles for household use moves to Chapter 63, specifically toilet/kitchen linens.

3402.90Lower: 13.7% vs 38%

If surface-active treated for cleaning

Application of detergents or soaps reclassifies to Chapter 34 as prepared cleaning agents.

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Import Tips & Compliance

Label clearly as 'natural animal sponges' to prevent confusion with vegetable or synthetic sponges during customs inspection

Maintain chain-of-custody records from harvest to export to prove no prohibited workings like sorting or chemical treatment

Related Products under HTS 0511.99.36.00

Dried Harvested Marine Sponges

Natural sponges harvested from marine environments such as sea sponges of the species Hippospongia lachne, dried and prepared for various uses. They fall under HTS 0511.99.36.00 as unprocessed or simply dried animal-origin sponges not suitable for human consumption and not covered elsewhere in Chapter 5. These are distinct from synthetic sponges or processed cleaning products.

Glove Sponges (Hippospongia canaliculata)

Premium natural glove-shaped sponges from the Hippospongia canaliculata species, harvested from the Mediterranean Sea and sun-dried. Classified under HTS 0511.99.36.00 as raw natural sponges of animal origin, unfit for food use per Chapter notes. Ideal for bath and personal care prior to any further processing.

Velvet Bath Sponges Raw

Soft velvet-textured natural sponges from tropical reefs, harvested and air-dried for preservation. Classified in HTS 0511.99.36.00 as natural sponges of animal origin, not prepared for brush-making or medical use. Excludes hides, edible products, or textiles as per Chapter notes.

Yellow Tube Sponges Dried

Tube-shaped yellow sponges (Aplysina spp.) dried post-harvest from Caribbean seas. HTS 0511.99.36.00 covers these as other NESOI animal sponges, unfit for consumption and not horsehair. Raw form distinguishes from worked or set products.

Loggerhead Marine Sponges

Dense loggerhead sponges from deep-sea harvesting, sun-dried for bulk trade. Under HTS 0511.99.36.00 as natural animal sponges NESOI, excluding Chapter 1 dead animals or Chapter 41 hides.

Sea Silk Sponges (Loose Raw)

Fine-textured sea silk sponges collected from coastal waters, minimally cleaned and dried without fiber extraction. These qualify under HTS 0511.99.36.00 as other animal products NESOI, specifically natural sponges, distinct from horsehair or edible guts per Chapter exclusions. Supplied loose for industrial or artisanal use.