It consists of :

GCC : Ground Calcium Carbonates : Natural Ground powder. The selected raw ores are ground into micro powder mixture then classified into different size ranges. This kind of powder remain natural characteristics of natural ores stones. 

PCC : Precipitated Calcium Carbonates : Processed from burnt lime after the calcination, become very light, opacity and viscosity and fine filling materials 

Steric Coated :  2 above items can be coated with steric acid to improve the properties applicable in many industries : paint, film and plastics etc...