Chilean water holding company Aguas Nuevas S.A. was founded in 2004 after it won the final concessions under Chile's water privatization process, ending the transition of assets to the private sector. Its main activities are the production and distribution of drinking water, sanitation and wastewater disposal in four Chilean regions —the northernmost provinces of Arica y Parinacota (region XV) and Tarapaca (I), and the southern provinces of Araucania (IX) and Magallanes (XII). Its subsidiaries —Aguas del Altiplano (XV and I), Aguas Araucania (IX) and Aguas Magallanes (XII)— hold 30-year concessions and serve over 420,000 clients along the country. In 2008, Aguas Nuevas diversified its operations with the creation of Enernuevas, a subsidiary engaged in power generation from renewable sources. The group was acquired in 2010 by Southern Cone Water SLP, a Japanese joint venture comprised made up of Marubeni Corporation and Innovation Networks Corporation of Japan (INCJ). Aguas Nuevas is headquartered in Santiago.