Modified Styrene Acrylic Concrete Superplasticizer from Japan
High-range water reducer blending styrene (aromatic) and acrylic polymers over 5% by weight for self-compacting concrete. Falls under 3824.40.10.00 as aromatic-containing prepared concrete additive. Enables pumpable mixes with superior slump retention.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Test for exact styrene monomer content via GC-MS; ensure container labels match HTS description
• Beware of anti-dumping duties on certain Asian origins