Construction of a mining and processing plant at the Gayskoye copper and sulfur deposit in the Orenburg region; a convoy of cars with construction materials on the way; bulldozers clear snow from the area; laying the foundation. A group of workers is carrying out drilling work. Senior geologist MS Nadozhogin is studying the soil at the site of the future Kapitalnaya mine. A team of tunnellers in an exploration mine. Preparation of a pit for the foundation of a large-block house of the future city of miners Gai; excavators remove soil and load it onto vehicles.