Calcium carbonate made by reacting water with quick lime (main component: calcium oxide CaO) obtained through the thermal decomposition of limestone and then further reacted with carbon dioxide gas (CO2) is called light calcium carbonate (light coal).
Light calcium carbonate made from limestone is contained in a great many products delivered to us as the fillers of rubber/plastic products, neutral papermaking loading materials and food additives.

Raw Materials

(1) Quick Lime

It is possible to self-supply large quantities of quick lime and carbon dioxide gas inexpensively with the inexhaustible supply of good quality lime ore in Kochi Prefecture and an existing lime combustion furnace.
*Limestone in Kochi Prefecture:
Kochi Prefecture has served as a major producing center for Tosa lime since the Edo period (1603 to 1868) because it is blessed with good limestone that contains few impurities. This is still used as a raw material in the iron, steel, cement and chemical industries today. Moreover, since this is highly dense and pure, this can be called a raw material suitable for light calcium carbonate.

(2) Industrial Water

We have secured an abundant source of good quality industrial water with a consumption track record.

Distribution Location

We are located adjacent to Kochi Port. Therefore, we can transport raw materials and products direct by sea. We have a location that allows for distribution at good economy even to remote locations.