Vol 9 No2 of theWATERLAT-GOBACIT Network’s Working Papers. This issue of the WATERLAT-GOBACIT Network’s Working Papers was organized by members of the Network’s Thematic Area 6, TA6– Hydrosocial Basins, Territories, and Spaces. TA6’s membership includes academics, students, practitioners, representatives of social movements and civil society organizations, among others. This TA has a wide remit, as it covers broad areas related to the social and environmental impacts of waterrelated infrastructures and operations, as well as extractivist activities, including mining and agribusinesses, among other. Given its broad focus, TA6 has important linkages with other Thematic Areas, including TA3, Urban Water Cycle and Essential Public Services, TA2 – Water and Megaprojects and TA9–Water and Production. This particular issue offers a joint coverage of topics addressed by TA6 and TA9. The issue focuses on the interrelations between private businesses and public authorities in processes that disregard the rule of law, violate human rights, and favour the development and consolidation of monopolistic forms of control over water sources by private bussinesses, processes that have negative impacts on the living conditions of large populations in rural and urban areas and cause environmental unsustainability. It features four articles presenting experiences from Argentina, Brasil, and Mexico. Article 1, by Lourdes Romero Navarrete, presents a critical analysis of government policies that, over the course of several decades have allowed the extreme monopolisation of water abstraction rights in the hands of a few bussiness families that control the diary industry in La Laguna Region, across the States of Cohahuila and Durango in semi-arid Northern Mexico.The author argues that this decades long-process of monopolisation of water rights in a semi-arid region has taken place under the government of different political parties and would have even worsened since 2018, despite the election that year of a more progressive political party to the Federal Government. In Article 2, Antonio Rodriguez Sanchez discusses the interrelations between government authorities and a large multinational brewery industry that, through a sofisticated network of public-private interactions has established a monopolistic control of water sources in the semi-arid central region of the State of Zacatecas, Mexico. Article 3, coautored by Natalia Dias Tadeu, Ana Claudia Sanches Baptista, Estela Macedo Alves and Izabela Penha de Oliveira Santos, examines how government policies led to the privatization of essential water and sanitation services in the State of Sao Paulo, Brazil between 2013 and 2020, helping to transform power relations at the State and municipal levels and promoting private control over the provision of these essential services. In Article 4, Robin Larsimont addresses the public-private interactions and coresponsibilities underlying the development of highly sophisticated wine production in the Andean piedmonts of the Province of Mendoza, Argentina