Contracting matters related to the construction of water and sewage systems and treatment plants, dams and dams and water diversion tunnels and water reservoirs and water and sewage networks. Roads such as main and secondary roads and highways, contracting affairs related to water, oil and gas transmission lines, mechanical and hydromechanical facilities, facilities and buildings, building cooling and heating systems, procurement and installation of electrical, water, gas and sewage facilities and equipment, installation of building electrical systems, including Zorbin Madarbaste fire alarm, purchase and sale of authorized commercial goods, obtaining and granting agencies inside and outside the country, import and export of all authorized goods, the company’s opening in tenders and auctions inside and outside the country.