The TRIBAG SA Company is a leading manufacturer of road-building aggregates in the region. Its organisational structure includes a surface mine of dolomite located in Siewierz, close to the E75 Katowice-Warszawa Express Road. The Company is active in the production and sale of a full range of road-building and construction aggregates. The TRIBAG SA Company also offers drilling and granulation services, which complements the complex service of business partners.