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Our commitment is focused on enhancing the common good by integrating the values of sustainability directly into our business strategy. For MM, sustainable development is not just a concept, but a tangible responsibility toward environmental, social, and economic well-being.
In 2025, we consolidated this mission by evolving our corporate status into a Benefit Corporation. This choice clearly expresses our desire to permanently integrate social and environmental purposes alongside our economic goals. We focus specifically on improving public housing conditions, mitigating the effects of climate change, and promoting sustainable practices. Today, we work with a clear objective: to ensure a better quality of life for future generations than our own.
Here are some key figures regarding MM’s commitment to sustainability (updated as of 12/31/2025).
928 Mwh of self-produced renewable energy (+60% vs 2023)
129,987 Mwh of renewable energy purchased and guaranteed by certificates of origin
48% of the vehicle fleet consists of hybrid and electric vehicles
10% water loss rate (versus a national average of 37%)
100% compliance of samples and parameters for treated water
25 Hours of training per capita (+51% vs 2023)
95% of Water Service calls successfully completed
2.84 Tonnes of paper saved through the digital billing service
2,936 Subscribers to the "Casa di Milano" newsletter (+67% vs 2024)
MM’s commitment is focused on enhancing the common good by integrating the values of sustainability across all three dimensions of our business strategy. Specifically, we focus on: the environment, through the protection of natural resources and the reduction of consumption; society, by ensuring fairly distributed well-being, listening to needs, and promoting human progress; and economy, through the creation of long-term value to ensure lasting and sustainable growth.
MM considers it essential to improve energy efficiency (reducing energy consumption while maintaining the quality and quantity of services provided) through a consistent and systematic approach, by:
MM's strategic objectives regarding energy policy can be summarized as follows:
To achieve these objectives, MM has maintained an Energy Management System (EMS) for its Water Services since 2011, in accordance with the UNI CEI EN ISO 50001 standard.
The principles governing MM’s sustainable development are illustrated in our Sustainability Reporting. This document is the primary tool through which the Company periodically communicates the outcomes of its activities, going beyond mere financial and accounting aspects to include the social and environmental policies, actions, and objectives we have implemented.
The report attests to MM’s social dimension, providing clear evidence of the benefits generated for all stakeholders directly or indirectly affected by the Company’s operations.
At MM, we analyze our impacts through the principle of Double Materiality. This method allows us to identify the environmental, social, and governance (ESG) topics where our activities have a real impact, while also understanding how external global challenges influence our business.
Below are the topics on which we focus our efforts, as they are considered material to both our company and our stakeholders.
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ESRS E1
Climate change
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ESRS E2
Pollution
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ESRS E3
Water and marine resources
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ESRS E4
Biodiversity and ecosystems
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ESRS E5
Circular economy
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Sub-topic and sub-sub topic:
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Climate change adaptation
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Climate change mitigation
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Energy
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Sub-topic and sub-sub topic:
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Pollution of air
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Pollution of soil
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Pollution of water
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Pollution of living organisms and food resources
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Substances of concern
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Microplastics
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Sub-topic and sub-sub topic:
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Water
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Water consumption and withdrawals
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Water discharges
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Marine Resources
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Water discharges in the oceans
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Extraction and use of marine resources
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Sub-topic and sub-sub topic:
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Direct impact drivers of biodiversity loss
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Impacts on the state of species
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Impacts on the extent and condition of ecosystems
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Impacts and dependencies on ecosystem services
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Sub-topic and sub-sub topic:
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Resources inflows, including resource use
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Waste
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Resource outflows related to products and services
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ESRS S1
Own workforce
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ESRS S2
Workers in the value chain
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ESRS S3
Affected communities
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ESRS S4
Consumers and end- users
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Sub-topic and sub-sub topic:
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Working conditions
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Secure employment, Working time, Adequate wages, Collective bargaining
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Work-life balance
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Health and safety
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Freedom of association, including the existence of work councils; Social dialogue
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Equal treatment and opportunities for all
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Training and skills development
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Diversity
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Gender equality and equal pay for work of equal value
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Measures against violence and harassment in the workplace
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Employment and inclusion of persons with disabilities
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Other work-related rights
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Child labour and Forced labour
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Adequate housing
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Privacy
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Sub-topic and sub-sub topic:
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Working conditions
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Secure employment, Working time, Adequate wages, Collective bargaining, Freedom of association, including the existence of work councils; Social dialogue
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Work-life balance
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Health and safety
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Equal treatment and opportunities for all
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Gender equality and equal pay for work of equal value
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Training and skills development
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The employment and inclusion of persons with disabilities
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Measures against violence and harassment in the workplace
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Diversity
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Other work-related rights
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Child labour and Forced labour
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Privacy
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Adequate housing, Water and sanitation
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Sub-topic and sub-sub topic:
●Communities’ economic, social and cultural rights
●Water and sanitation
●Land-related impacts
●Adequate housing
●Security-related impacts
●Adequate food
●Communities’ civil and political rights
●Freedom of expression
●Freedom of assembly
●Impacts on human rights defenders
●Rights of indigenous peoples
●Free, prior and informed consent
●Self-determination
●Cultural rights
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Sub-topic and sub-sub topic:
●Information-related impacts for consumers and/or end-users
●Privacy
●Freedom of expression
●Access to (quality) information
●Personal safety of consumers and/or end-users
●Health and safety
●Security of a person
●Protection of children
●Social inclusion of consumers and/or end-users
●Access to products and services
●Non-discrimination
●Responsible marketing practices
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ESRS G1
Business conduct
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Sub-topic and sub-sub topic:
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Management of relationships with suppliers including payment practices
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Corruption and bribery
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Corporate culture
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Protection of whistle-blowers
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Animal welfare
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Political engagement and lobbying activities
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Transparency is the cornerstone of our governance. Below are the policies and documentation that certify MM’s performance and commitment within the social and environmental spheres.
SUSTAINABILITY
