5 quarries of  high whiteness and purity, long-term licensed by the Ministry of Natural Resources and Environment, a total area of ​​117 hectares- a large reserves of over 100 million tons, which the largest in Vietnam, are located in 03 communes Chau Hong - Chau Quang and Chau Loc - Quy Hop.

We have a team of experienced mining engineers, with a full range of mining equipment as excavators, self-propelled drills, automatic cutters. These advantages help THNA GROUP always ensure a stable supply of input materials in terms of both quantity and quality.