The French group Veolia became indirectly the controlling shareholder of IAM. The subsidiary Aguas Andinas completed its international rating process with Standard & Poor's, obtaining an A- rating, becoming the first non-state-owned corporate company in Chile to receive the highest international rating. The non-regulated subsidiary Gestión y Servicios changed its name to Hidrogística.

A collaboration agreement was signed between Aguas Andinas and the irrigation associations of the first section of the Maipo River to maintain the sustainability of the basin. The subsidiary Aguas Andinas won the XII Environmental Innovation Award (RIGA, 2021) in the Best Social Management Project category for its City Sentinel project.

The Pirque mega reservoirs began operating, increasing the autonomy of Santiago's water system to 34 hours. The subsidiary Aguas Andinas sold 100% of its participation in Empresa de Servicios Sanitarios de los Lagos S.A.

IAM integrated index S&P IPSA, main stock market indicator of Trade of Santiago. IAM and Waters Andean integrated the dow again Jones Sustainability Index Chile. waters Andean issued for the second year consecutive a bonus green and social

The Aguas Andinas biofactory Aguas Andinas received the Impulse for Change for Change Award in the in the planetary health health category, from the United the United Nations. The company issued the first green and green and social bond in Chile. Chile. IAM and Aguas Andinas joined the Dow the Dow Jones Sustainability Jones Sustainability Index Chile

Once again, IAM together with Aguas Andinas were selected to be part of the Dow Jones Sustainability Index Chile. Aguas Andinas inaugurated the world’s first biofactory in the world for the water utility sector which converts waste into resources.

For the second consecutive year, IAM and Aguas Andinas were both selected to be included in the Dow Jones Sustainability Index Chile.

IAM and its subsidiary Aguas Andinas enter the Dow Jones Sustainability Index Chile, the Santiago Stock Exchanges’ first sustainability index, which included 12 companies in the country

The subsidiary Aguas Andinas achieved the best historic rate for a long-term bond placement, which demonstrates the market and investors’confidence in IAM’s management of its sanitation companies.

The company through its sanitation subsidiaries began the operation of its Mapocho plant in 2013, thus complying with its commitment to handle all the sewage generated by the people of the Metropolitan Region. This places Santiago at the level of the world’s most developed countries in sanitation.

The subsidiary Aguas Andinas was also awarded the ICARE prize of Best Company of 2012, one of the most prestigious awards given in the country and which reflected its serious and successful management.

June 2010: Suez Environment indirectly acquired 75.01% of the share capital of Agbar, making it the new controller of the company.

The subsidiary Aguas Andinas acquired a 53.5% shareholding in Empresa de Servicios Sanitarios de Los Lagos (ESSAL), a sanitation company whose concession zone is in the regions de Los Lagos and de Los Ríos in the south of Chile, thus giving the Aguas Group a 42.5% market share at the national level.

IAM sold 1.1% of its shares in Aguas Andinas, preserving its control of the sanitation company with a 50.1% shareholding. The following year, the Company launched an ADR Level 1 program which permitted its shares to be traded on the American over-the-counter market and open up the ownership of the Company to all kinds of shareholders.

July 2005: IAM was transformed into an open corporation and restricted its corporate purpose to the investment in the shares of Aguas Andinas and the provision of advice, consultancies and services related to the transfer of technology and know-how, technical assistance, business and project management, especially those related to the management and operation of businesses related to sanitation. In November of that year, IAM became listed on the stock exchange through the placement of a block of shares representing 43.4% of its capital, which resulted in the incorporation of new shareholders and Agbar remaining as the only controller with a 56.6% shareholding.

May 19, 1999: Inversiones Aguas Metropolitanas, IAM, was constituted as a limited partnership by the companies Agbar and Suez Environnement in order to take part in the privatization of Empresa Metropolitana de Obras Sanitarias, EMOS S.A., today Aguas Andinas S.A. IAM was awarded the block of shares in the international tender carried out by Corporación de Fomento de la Producción (CORFO), and then subscribed for a capital increase and acquired additional shares on the stock exchange, thus taking control of Aguas Andinas (ex EMOS) with a 51.2% shareholding.