Cement clinkers
Portland cement, aluminous cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinkers. > Cement clinkers > Cement clinkers
Duty Rate (from China)
Products classified under Tariff item 2523.10.00.00
Aluminous Cement Clinker
Aluminous cement clinker, also known as high-alumina clinker, is produced by sintering bauxite and limestone at high temperatures. It is a hydraulic cement clinker in its unground state, falling under this tariff item as the primary product before further processing into cement.
2523.10.00Low-Alkali Cement Clinker
Low-alkali cement clinker is a type of Portland cement clinker with reduced alkali content, specifically designed to prevent alkali-silica reactions in concrete. As an unground clinker, it falls under this tariff item for hydraulic cement clinkers.
2523.10.00Oil Well Cement Clinker
Oil well cement clinker is a hydraulic cement clinker engineered for high-pressure and high-temperature oilfield applications, conforming to specific API Class grades. In its unground clinker form, it falls under this tariff item before final grinding to API specifications.
2523.10.00Portland Cement Clinker
Portland cement clinker is the intermediate product formed by sintering limestone and clay at high temperatures, primarily composed of calcium silicates. As the unground form of hydraulic cement, it falls directly under this tariff item for cement clinkers.
2523.10.00Slag Cement Clinker
Slag cement clinker is produced by blending blast furnace slag with Portland clinker components, offering enhanced sulfate resistance. As an unground clinker, it falls under this tariff item for hydraulic cement clinkers before final grinding into blended cement.
2523.10.00Supersulfate Cement Clinker
Supersulfate cement clinker combines Portland clinker with high ratios of calcined gypsum and slag, providing extreme sulfate resistance. In its unground clinker form, it falls under this tariff item for hydraulic cement clinkers prior to final grinding.
2523.10.00White Portland Cement Clinker
White Portland cement clinker is manufactured from low-iron raw materials, resulting in a light-colored clinker used for aesthetic concrete applications. As the unground clinker form, it falls under this tariff item before being ground into white cement.