Plaster Soil Amendment Block

Compressed gypsum plaster blocks used to amend sodic soils in agriculture by improving water penetration. Pure gypsum composition for farming applications. Classified in 6809.90.00.00 as other plaster articles.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

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

3105.20.00.00Lower: 25% vs 35%

If fertilizer grade gypsum

Mineral gypsum for fertilizer use goes to Chapter 31.

2530.90.20.00Lower: 27.9% vs 35%

If natural gypsum powder

Unprocessed or calcined gypsum classifies under Chapter 25.

3101.00.00.00Lower: 25% vs 35%

If animal feeding gypsum

Gypsum for livestock feed amendments goes to fertilizers.

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Import Tips & Compliance

• Agricultural use certificates prevent fertilizer misclassification

• Purity analysis confirms >90% gypsum content for plaster definition

• Bulk packaging distinguishes from retail consumer products