Mercor S.A. designs, manufactures, sells, installs, and services passive fire protection systems. The company provides natural smoke exhausting systems comprising smoke exhaust vents and windows, skylights, roof hatches, continuous roof lights, smoke curtains, and control systems; and fire ventilation systems, such as cut-off fire valves, fire dampers, smoke exhaust fans, intake and exhaust fans, control units, overpressure systems for staircases, jet ventilation systems for garages, and explosion-proof technology products. It also offers construction protection products, including board, spray, sealing, intumescent coating, and spray acoustical coating systems. Its products are used in production of halls and warehouses, logistics centers, public buildings, commercial buildings, and residential buildings. The company was founded in 1988 and is headquartered in Gdansk, Poland.