Hamid Chitchian, who was addressing the conference ‘Opportunities for German-Iranian Cooperation,’ told that the ministry had invited German water and energy companies to cooperate and invest in Iran’s water sector. “So far, we have constructed 641 dams and 168 others under construction,” Chitchian said. “The new approached adopted by the government and opportunities provided through facilitation of land purchase for investments paved the way for German companies to come to Iran and we hope that this conference would bring forth as an outcome expansion of cooperation with German companies in water sector,” the minister was quoted to say.