TEDAGUA (Techniques of Desalinization of Waters, SA) , was constituted in 1983 in Las Palmas of Gran Canaria, developing activity in the geographic scope of the Canary Islands and the southeast of the peninsula, with sporadic exits to the outside.It is Acquired by ACS Group in 2001, it was integrated into the Cobra Group, becoming the benchmark company in design, manufacture, operation, maintenance and engineering of both desalination plants, purification systems and purification of drinking water and / or processes, as well as purification equipment and reuse of urban and industrial discharges.