The quality of the ClaroGlass glass hollow blocks produced by Vitrosilicon belonging to the Ciech Chemical Group has been appreciated by the judges of the “Teraz Polska” competition. During this year's competition this product received the Polish Promotion Logo "Teraz Polska" by acquiring the maximum score of points in the classification of the nominated products (1000 points out of a total of 1000). Vitrosilicon is the only manufacturer of glass hollow blocks in Poland.