High Alumina Cement from Japan
High alumina cement is a hydraulic binder made from bauxite and limestone, known for rapid hardening and high-temperature resistance. It sets and hardens in air or underwater through hydration of calcium aluminates. This product is classified under 2523.90.00 as 'other hydraulic cements' because it is not a Portland cement, and while it is aluminous, it is not specifically classified under the aluminous cement subheading if it does not meet the exact definition.
Duty Rate — Japan → Canada
Import Tips
• Distinguish high alumina cement from aluminous cement (2523.30.00) by checking the alumina content and manufacturing process
• Ensure the product is not calcined or subjected to processing beyond mechanical processes, as per Chapter 25 Note 1
• Provide a detailed product specification to support classification under 'other hydraulic cements'