Sulfur Dioxide Preserved White Button Mushrooms

White button mushrooms (Agaricus bisporus) treated with sulfur dioxide gas to ensure provisional preservation during transport or storage. They remain unsuitable for immediate consumption in this state, requiring further processing like cooking or canning before use. Classified under HTS 0711.59.10.00 as provisionally preserved mushrooms per Chapter Note to heading 0711.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China8%+35.0%43%
🇲🇽Mexico8%+10.0%18%
🇨🇦Canada8%+10.0%18%
🇩🇪Germany8%+10.0%18%
🇯🇵Japan8%+10.0%18%

Alternative Classifications

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

2003.10.01Higher: 43.5% vs 43%

If heat-processed and suitable for immediate consumption

Cooked or canned mushrooms ready to eat fall under Chapter 20 as prepared vegetables, not provisional preservation.

0712.90.40Higher: 64.8% vs 43%

If dried, regardless of treatment

Dried mushrooms are classified in heading 0712 for dehydrated vegetables, excluding provisional preservation.

0709.51.01Higher: 55% vs 43%

If fresh or chilled, untreated

Fresh mushrooms unsuitable for provisional preservation go to Chapter 07 heading 0709 for fresh produce.

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Import Tips & Compliance

Verify treatment method (e.g

sulfur dioxide levels) matches Chapter 71 note for provisional preservation; provide lab certificates

Include phytosanitary certificates from origin confirming no pests and compliance with USDA import requirements

Avoid misclassification as ready-to-eat; test for immediate edibility to prevent CBP reclassification

Related Products under HTS 0711.59.10.00

Brine-Preserved Crimini Mushrooms

Crimini mushrooms (Agaricus bisporus var. brown) preserved in brine solution solely for transport and storage, remaining unsuitable for immediate consumption without further preparation. This provisional treatment aligns with heading 0711 requirements, distinguishing from final processed products.

Preservative Solution Treated Shiitake Mushrooms

Whole shiitake mushrooms (Lentinula edodes) treated in a sulfur water or other preservative solution to maintain quality during shipment, but kept unsuitable for direct consumption. Fits HTS 0711.59.10.00 as mushrooms provisionally preserved per chapter note.

Sulfur Water Preserved Oyster Mushrooms

Oyster mushrooms (Pleurotus ostreatus) preserved in sulfur water for provisional storage and transport, unsuitable for eating without rinsing and cooking. This treatment ensures they qualify under heading 0711 for mushrooms not ready for immediate use.

Brined Enoki Mushrooms for Processing

Enoki mushrooms (Flammulina velutipes) in brine, treated only for provisional preservation during international transport, not intended for immediate retail sale. Matches HTS 0711.59.10.00 criteria for unsuitable-for-consumption mushrooms.

Preserved Portobello Mushrooms in Solution

Large portobello mushrooms (Agaricus bisporus mature) in preservative solution for temporary preservation, remaining unpalatable and unsafe for immediate consumption. Provisionally preserved per heading 0711 for mushrooms.

SO2 Treated King Oyster Mushrooms

King oyster mushrooms (Pleurotus eryngii) gassed with SO2 for provisional preservation during export, unsuitable without processing. Classified as other mushrooms under HTS 0711.59.10.00.