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Flue Gas Desulfurization Gypsum from Canada

Synthetic gypsum from power plant emissions scrubbing, chemically identical to natural gypsum. HTS 2520.10.00.00 covers this high-purity dihydrate form for wallboard and agriculture. Increasingly replaces mined gypsum.

Duty Rate — Canada → United States

10%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

Import Tips

Stack gas process certificates confirming gypsum purity >93%

Radioactivity testing standard for FGD materials from coal plants

Environmental compliance docs for byproduct status