High Early Strength White Cement from China
White Portland cement formulated for rapid setting in precast production, achieving high strength within hours while preserving white color. HTS 2523.21.00.00 classification based on white hydraulic cement properties, not specific strength grades. Used in accelerated construction projects.
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
• Strength curves and setting time data required to verify rapid-hardening claims without additives
• Higher Blaine fineness (4500+ cm²/g) typical; document milling specs
• Avoid confusion with gypsum-accelerated products (heading 2520)