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AySA Privatization: Who Wants to Control Water for 14 Million People

22/07/2026 10:13 - Economia

A New Horizon for Water and Sanitation in Argentina

The Argentine government is moving forward with one of the largest privatizations in the region: the concession of AySA (Agua y Saneamientos Argentinos S.A., the national water and sanitation company). This public utility provides drinking water and sewage services to 14 million users across the Autonomous City of Buenos Aires and 26 districts in the Greater Buenos Aires area (locally known as 'conurbano', a densely populated ring of suburbs around the capital). The sale of 90% of the company's shares promises to transform water resource management in the country.

Bidding Schedule

  • August 12, 2026: Deadline for inquiries regarding the Single Bidding Document (via the CONTRAT.AR platform).
  • August 27, 2026: Submission of bids and opening act at 10:00 AM.
  • October 2026 (estimated): Possible closing of the privatization process, according to Diego Chaher, head of the Public Enterprises Transformation Agency.

Investment and Coverage Goals

The concession contract stipulates a total investment of US$15.04 billion over 30 years. For the first five years, US$1.94 billion is committed, and US$2.03 billion for the second five-year period.

The bidding document describes the first decade as a phase of 'operational stabilization'. Goals for the first 10 years include:

  • Drinking water coverage: increasing from 75.3% to 78.9%.
  • Sewage coverage: increasing from 63.9% to 65.3%.
  • Improved water pressure (a historical complaint in the southern zone): from 58% to 67%.
  • Installation of 100,000 meters per year and renewal of 500 km of water networks.

Who are the interested bidders?

Seven bidders have registered, combining local and international players:

  • Local: Grupo Roggio (operates Aguas Cordobesas), Mauricio Filiberti (owner of Transclor) in alliance with Rowing, and JCR (construction company of the late Juan Carlos Relats).
  • International: Sabesp (Brazil), Aguas Andinas (Chile, controlled by Veolia), and the Israeli state-owned company Mekorot.

A bit of history: From the old OSN to the new concession

This is not the first privatization process for the company. In 1993, under the name Aguas Argentinas S.A., the service was concessioned to the French company Suez. After repeated contract breaches and lack of investment, in March 2006, the then-president Néstor Kirchner decreed its nationalization (Decree 304/2006), creating the current AySA. It is expected that this new stage will bring the stability and financing needed to bring drinking water and sanitation to more Argentine homes.


Sources

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