Hakan Plastik was founded in Istanbul, Turkey, in 1965. Now among the Top 500 Largest Companies in Turkey according to "​ Istanbul Chamber of Industry"​, Hakan Plastik operates in three core businesses for pipe solutions: Building & Installation, Civils, Infrastructure and Agriculture.With a workforce of 730 people, the Company has production sites in Cerkezkoy, about 100 km north-west of Istanbul, and in Sanliurfa (Anatolia, Turkey). The Company is exporting its certified products like SILENTA to more than 70 countries and maintains its leadership position worldwide.In 2013, the leading plastic pipe manufacturer of Europe and the Middle East, Hakan Plastik and the World's leading manufacturer of piping systems, Swiss-based Company, GF joined their forces.GF Piping Systems is one of the three divisions within Georg Fischer Corporation and a leading provider of plastic and metal piping systems with global market presence. The product portfolio includes pipes, fittings, valves and the corresponding automation and jointing technology for industry, building technology as well as water and gas utilities. GF comprises three divisions: GF Piping Systems, GF Casting Solutions, and GF Machining Solutions. Founded in 1802, the Corporation is headquartered in Switzerland and is present in 34 countries with 136 companies, 57 of them production facilities. Its approximately 15'835 employees generated sales of CHF 4'150 million in 2017. GF is the preferred partner of its customers for the safe transport of liquids and gases, lightweight casting components in vehicles, and high-precision manufacturing technologies.