Polimex-Mostostal Siedlce. 

Polimex-Mostostal S.A. is a prominent engineering and construction company with operations spanning Poland and international markets. The firm specializes in designing and executing a wide array of infrastructure projects, including roads, bridges, railway networks, large-scale structures, and hydrotechnical systems, while also providing project supervision and contract management. Beyond construction, it manufactures steel structures, platform grates, and various transport pallets, alongside offering comprehensive steel product services. Its extensive building portfolio encompasses production facilities, warehouses, environmental protection plants, administrative and office complexes, shopping centers, multiplexes, event halls, and sports stadiums. Polimex-Mostostal also undertakes the construction of storage tanks, industrial installations, terminal and transshipment port facilities, and fuel pipelines. It provides specialized repair services for the refinery and petrochemical sectors, and produces furnaces and process heaters, complete with assembly and commissioning. Additionally, the company delivers turnkey energy and environmental solutions, such as air and water purification systems, flue gas desulfurization, dedusting, water treatment, and waste processing plants. Complementing these services, it offers galvanizing and painting for steel structures. Founded in 1945, Polimex-Mostostal S.A. is headquartered in Warsaw, Poland.