In Germany some 1,600 companies, with approximately 3,200 plants and 27,000 employees, are working to supply an estimated annual demand for about 500 million tonnes of gravel, sand, silica sand and natural stone products for building and other industries.
MIRO (The Federal Association of Mineral Resources), represents a strong union on federal and European level the interests of companies and employees in the German rock industry, and it says that Germany has sufficient reserves of mineral resources. It