Quarry – the Gama Construction Ltd Skopje was awarded the concession of the site “Cross–Osinchani” municipality Studenicani mineral raw material – limestone. Here you can get: pad, sand fractions for concrete, crushed stone fractions for adhesives and the like. PRODUCTION OF CONCRETE – Gama Construction Ltd. Skopje has its own betonjerka and deals with the production of concrete.