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Calcined Gypsum Plaster from China

Calcined gypsum plaster, also known as plaster of Paris, is produced by heating gypsum to remove water, resulting in a fine powder that forms a paste when mixed with water. It falls under HTS 2520.20.00.00 as it consists of calcined gypsum used primarily for construction and molding applications. This product may include small quantities of accelerators or retarders for controlled setting times.

Duty Rate — China → United States

37.5%

Rate breakdown

9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China

Import Tips

Verify the product is calcined gypsum or calcium sulfate based; non-calcined gypsum falls under 2520.10

Provide certificates of analysis confirming absence of binders or additives exceeding 'small quantities' to avoid reclassification

Check for country-specific quotas or anti-dumping duties on gypsum plasters from major exporters like Spain or Mexico