TGW is the leading environmental group in Israel and comprises four companies: Shtang Construction & Engineering, which desig ... ns and constructs water and wastewater treatment plants and infrastructure, trenchless pipeline laying and energy generation projects; The Green Way, which designs and implements landscape, irrigation and environmental rehabilitation projects; Shtang International, which operates in all group disciplines internationally and Shtang Eco, which makes use of agricultural and municipal waste to generate green energy ecologically. read more