Determining sources of raw materials as the firm base for our long-term development, right from the start, we have set priority for exploring high quality limestone quarries and requesting for exploiting licenses. Until now, we are the owner of 2 limestone quarries at Chau Hong and Chau Quang commune of Quy Hop district, Nghe An province.

These quarries cover an area of 45 hectares with the total reserve of more than 30 million tons. CaCO3 lumps at our quarries are characterized by high whiteness, brightness and purity.