TRIBAG SA – a leading company in the TRIBAG GROUP (GT). It is the owner of dolomite deposits geo-located in the Silesian Metropolis area. TRIBAG SA has a dolomite mine in a strategic road transport area of Upper Silesia, and has for years been one of the leading manufacturers of road-construction aggregates, as well as of aggregates which are then used as an input for asphalt production in Silesia. TRIBAG SA manufactures and sells dolomite aggregates in the amount of approximately 1 million tonnes per year.

BRUK SA – a manufacturer of concrete paving stones and concrete products for the road-construction sector, as well as of precast concrete products for the industrial building sector and for housing developers. The Company has been operating in the market for more than 30 years, targeting mainly the Silesian Metropolis, where their annual sales rate amounts to approximately 3 million sq. m. of concrete paving stone.