Tekfen 

Tekfen Holding Anonim Sirketi, together with its subsidiaries, engages in engineering and contracting, chemical, agriculture, services, and investment businesses in Turkey and internationally. The company engages in the construction of petrochemical facilities, pipelines, land and marine terminals, offshore platforms, tank farms, oil refineries, pumping stations, and power plants, as well as highways, subways, bridges, tunnels, electrical and instrumentation projects, infrastructure projects, production facilities, commercial and technical building complexes, and sports complexes. It offers mineral, special water soluble, and organic/organomineral fertilizers; and generates biogas and electricity from biogas. In addition, the company produces, distributes, and trades in seedling and sapling, as well as exports cherry, apricot, pomegranate, plum, persimmon, and figs. Further, it offers services including, terminal management, guidance, towage, agency business, free zone operations, insurance, and building and facility management. Tekfen Holding Anonim Sirketi was founded in 1956 and is based in Istanbul, Turkey.