XellaCZ is a leading manufacturer of Ytong, Silka and Multipor building materials. The company's headquarters in the Czech Republic is located in the plant in Hrušovany u Brna, where the production of Ytong aerated concrete blocks takes place. In addition to production, the marketing department, accounting and back office are also located here.

The sand plant offers its customers the widest range of quarried and washed sands, washed crushed aggregates and also ornamental aggregates. The plant also offers backfill material, which is known as Ferreto.