After the world war ii, the country needed immediate reconstruction. On 11 March, the company for concrete products karposh†was established in the municipality of Gjorce Petrov under the proposal of the Minister for Industry and Mining of the Federal Republic of Macedonia. In that year the main raw material is extracted from the river Lepenec and was given to the â€karposh†factory. after this the factory expands and the number of employees and qualified staff increases.