Cement is manufactured through Mining & Crushing, Mixing & Raw Mill, Calcination, and Product processes.

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• Mining & Crushing Process

         After mining the limestone in the mine, it is put into a crusher and crushed to a size of 30 mm or less through 1st and

         2nd crushing processes (including third processes if necessary). Crushed limestone is mixed and stored to keep the quality constant.

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• Mixing & Raw Mill Process

         Limestone and additives are measured and put into the mill. After the drying, milling and other processes, when the particle size is less than

         100 ㎛, The raw material is stored in the raw material storage after the mixing process so that it has a uniform composition distribution

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• Calcination Process

         It is the most important process in the cement manufacturing process.
         Preheat the raw material supplied from the raw material mill to about 850 ~ 900 ° C in a preheater and then calcine the preheated raw

         material at a high temperature of about 1,450 ° C in a rotary kiln.

          After that, clinker is produced through the cooling process (quenching to below 100 ℃).

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• Product Process

          After adding gypsum to the clinker, it is put into the cement grinder, and the particles are finely pulverized to a size of 44 μm or less, and the

         finished cement is stored in the silo.