Synthetic calcium carbonate by chemical synthesis reaction is required rather than using existing calcium carbonate used in minerals.

This is a method of synthesizing CaCO₃ (calcium carbonate) using CO₂ generated from thermal power plants and there is a calcium carbonate manufacturing technology. This can also provide a carbon reduction effect by reducing the amount of CO₂ generated.

In the process of producing synthetic calcium carbonate using the thus synthesized calcium carbonate, calcium carbonate composite particles are formed by synthesizing TIO₂ at a constant temperature and a constant ratio.