Plaster Soil Amendment Block from Mexico
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.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Agricultural use certificates prevent fertilizer misclassification
• Purity analysis confirms >90% gypsum content for plaster definition
• Bulk packaging distinguishes from retail consumer products