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Rendering NexMeter With the Hera Group, also gas distribution is going green. NexMeter, our smart gas meter 4.0, the first of its kind worldwide in terms of cutting-edge technology and safety functions, including reducing gas dispersion into the atmosphere, will be made from recycled plastic and can already be used for distributing hydrogen in the network up to a maximum of 20% compatibility, with a trial planned in the coming months. This advanced meter is therefore a concrete example of our commitment to the energy transition and carbon neutrality, focusing on green gases, such as biomethane, hydrogen and green syngas, and contributing to the fight against climate change. Furthermore, it results from Hera’s experience and know-how in management of the gas distribution service, combined with continuous investments in innovation, research and development, and confirms the Group’s collaboration with outstanding partners: Panasonic, the Japanese multinational global leader in electronic products and components, and Pietro Fiorentini, an Italian company and market leader in creating products and services for the entire natural gas chain. The advanced version of NexMeter will be previewed today in Milan at Enlit, the most important event in the sector. An immediate debut: initial experiments with hydrogen in the domestic gas network soon to be underway NexMeter’s first field test involving hydrogen will be carried out during the next few months, as part of a wider set of activities aimed at certifying our entire supply chain as qualified to use green gases. More specifically, it involves introducing a mixture of natural gas and hydrogen into a portion of the distribution network managed by the Group, involving around thirty households in Castelfranco Emilia in Modena province. This is the first experiment of this kind in Italy as regards domestic gas distribution, and it aims at studying innovative solutions to contribute to the local area’s needs as regards decarbonisation, with benefits for the environment as well. The trial is also part of the broader strategy for developing hydrogen in a two-fold perspective: on the one hand, upgrading our assets, starting with the gas distribution networks, and on the other, creating new business opportunities, which we can make the most of by leveraging its multi-business expertise, including partnerships with other major industrial operators. Rendering NexMeter 2019-05-27 For further information Rendering NexMeter Our smart gas meter 4.0, the first of its kind internationally in terms of safety functions, is already prepared for its first experimentation in the network with hydrogen, and its construction in recycled plastic further confirms the commitment to the energy transition and circularity /-/hera-group-with-nexmeter-the-gas-meter-goes-green /-/nexmeter-the-smart-gas-meter-for-innovation-and-security Press release Find out the dedicated webpage Rendering NexMeter

Bologna The Emilia-Romagna Territorial Agency for Water and Waste Services (Atersir), acting as regulatory agency and contracting station, has officially awarded the tender for urban and assimilated waste management in the Bologna area to the temporary consortium (RTI) formed by Hera S.p.A., Giacomo Brodolini Soc. Coop and Consorzio Stabile Ecobi. The figures of the tender won by the consortium led by the Hera Group The contract awarded concerns 50 municipalities in the Bologna area, including the capital city, and a total of approximately 1 million inhabitants. As requested during the tender, the temporary consortium led by the Hera Group – the current manager of the service in the same municipalities – will make significant investments to extend the ‘pay as you throw’ waste collection model to the entire area, with the aim of minimising the amount of non-sorted waste and increasing the quantity destined to be recycled. The contract, which will be signed in the coming weeks by Hera and Atersir, has a total value of over 1.7 billion euro and a timespan of 15 years. More sustainability and increasing shared value for communities Thanks to the excellent operational skills of Hera and the other companies in the contracted consortium, the area covered by the service contract will be provided with collection methods based on innovative services and equipment, strongly oriented towards sustainability, waste reduction and an increase in the amount of recycled materials. More dialogue and better environmental performance The key principles underpinning the offer presented by the consortium led by Hera are awareness-raising and the active involvement of citizens and businesses, in order to encourage a reduction in the amount of waste, especially non-sorted waste, and an increasing focus on sorted waste collection. In fact, experience in this field shows that – regardless of the collection method proposed – the environmental performance of waste is better where the community is more aware of its role. For this reason, right from the first months of the new service contract, Hera will launch progressive communication and information campaigns aimed at increasing citizen involvement, and in so doing, further improving the service quality, with a view to creating increasing shared value for local communities. Bologna 2019-05-27 For further information Bologna The winning proposal for the Bologna area, submitted by a consortium led by the Hera Group, focuses on sustainability, innovation and creating shared value /-/hera-wins-waste-management-tender-in-the-bologna-area Press release Bologna

DJSI 2021 We have once again been confirmed as the world’s best multi-utility in ESG dimensions by S&P Global that selects the companies to be included in the Dow Jones Sustainability Indexes (DJSI). S&P Global has indeed announced the new ranking - effective as of November 22, 2021 - for its authoritative international stock exchange indices, which assesses the social responsibility of listed companies, based on sustainability performances for ESG factors. For the second consecutive year, we have been included in both the global (Dow Jones Sustainability World Index) and European (Dow Jones Sustainability Europe Index) indices, ranked best in the sector. We further raised our sector benchmark, achieving an overall score of 90/100, against a sector average of 39/100. The ratings achieved: 92/100 in Environment, 90/100 in Economic & Governance and 88/100 in Social, reaching the highest sector score in all the three dimensions. This recognition is fully in line with the consensus found in ESG assessments thanks to a strategy focused on sustainable value creation in the last 20 years. DJSI 2021 2014-03-19 For further information DJSI 2021 A further recognition to our strategy, which combines attention towards sustainability with creating shared value /-/dow-jones-sustainability-index-hera-once-again-world-sustainability-leader-in-multi-utility-water /group_eng/investors /group_eng/sustainability Press release Visit Investor Relations website area Visit Sustainability area DJSI 2021

Risultati finanziari Financial highlights Revenues at 6,424.3 million euro (+31%) Ebitda at 883.3 million euro (+9.6%) Net profit for shareholders at 308.4 million euro (+32.3%) Net financial debt at 3,303.8 million, with Net debt/Ebitda at 2.75x Operating highlights Strategy based on a mix of internal and external growth Significant contribution coming from the gas area, energy services and the waste management sector Over 3.4 million energy customers reached Today, the Hera Group’s Board of Directors, chaired by Tomaso Tommasi di Vignano, unanimously approved the consolidated quarterly report at 30 September 2021. The report shows improvement in the main economic indicators compared to the same period of the previous year, confirming the Group’s long track record of positive performances, its financial solidity and its commitment to sustainable development, respecting European strategies and the UN 2030 Agenda. The most significant results include an increase coming to over 77 million euro in Ebitda, mainly owing to free market activities – especially gas sales, energy services and waste treatment – whose pro-cyclical nature enabled the Group to take full advantage of the opportunities arising from the country’s economic recovery and revival initiatives, while at the same time creating value for the local areas and communities served. A sharp increase was also seen in net profits for shareholders, which in this quarter includes the effects of the tax realignment of certain goodwill items. In July, a dividend amounting to 161 million euro was paid to shareholders, corresponding to 11 cents per share, up 10% compared to the previous year. From a broader point of view, the results for the first three quarters of the year show growth not only with respect to 2020, but also compared to the results for 2019, prior to the impact of the global pandemic. The current results are higher than the expectations contained in the Business Plan to 2024: in less than two years, Hera has achieved more than half of the growth forecast for the five-year period covered by this Plan. The Group’s strategy therefore continues to prove successful, promoting both organic growth and mergers and acquisitions, and protecting results achieved from the turbulence seen in the external context. The more noteworthy changes in the scope of consolidation include three M&A transactions in the industrial waste treatment area, with the acquisition of 70% of the Friuli-based company Recycla, 31% of the company Sea, located in the Marche, and 80% of the Vallortigara Group, which operates in the Veneto region. The energy areas, instead, saw the acquisitions of Wölmann, a company operating in photovoltaic panel installation, the sales company Ecogas, in Abruzzo, and 11% of Ascotrade from the Belluno company Gsp, thus arriving at 100% control. At the same time, continued growth was seen in the Group’s energy customer base, now over 3.4 million, thanks to increases in both liberalised markets and those subject to public tenders. Lastly, as regards regulated services, the Hera Group has won the tenders called to date in the areas served, in the waste management, gas distribution and integrated water service areas. Note in particular the recent confirmation of gas distribution in the Udine 2 ATEM and, last week, in the water cycle, serving 24 municipalities in the province of Rimini, including the city of Rimini. Revenues rise to over 6.4 billion euro In the first nine months of 2021, revenues amounted to 6,424.3 million euro, up 31.0% from 4,905.9 million-euro one year earlier, with growth seen in all areas. More specifically, the energy areas felt the effects of higher revenues from trading, higher volumes of gas sold and an increase in the price of energy commodities, in addition to the energy services business, due to the activities related to the insulation incentive and energy efficiency works. Revenues from network services (both regulated and on behalf of third parties) and the waste management area also increased, due to energy production, more waste treated and an increase in plastics sold. Ebitda increases to 883.3 million euro Ebitda increased by 77.1 million, or 9.6%, over the 806.2 million seen in the first nine months of 2020, rising to 883.3 million at 30 September 2021. This increase is linked to the performance of the energy areas, mainly thanks to gas sales and energy trading, as well as energy service activities. Another decisive factor consisted in the positive results recorded in the waste management sector, particularly in the waste treatment area. Operating result grows to 470.8 million euro Operating profit rose to 470.8 million euro, compared to 414.7 million at 30 September 2020, showing a 13.5% increase (despite higher expenses for depreciation and amortisation). Financial operations at the end of 3Q 2021 amounted to 85.4 million euro, mainly due to lower income from late payment indemnities on last resort markets and higher charges for the sale of tax credits as part of ecobonus-related activities. These aspects were partially offset by the efficiencies achieved following the repurchase of part of the medium- to long-term debt, lower updating expenses and higher profits from subsidiaries and joint ventures. Pre-tax profits increased from 335.2 to 385.4 million euro (+15%). Net profit for shareholders rises to 308.4 million euro Net profit rose to 340.6 million euro, up significantly by 39.2% from 244.7 million euro in the same period during the previous year, thanks to a tax rate that settled at 26.2%, improving compared to the 27% recorded at 30 September 2020, due to the Group’s commitment to supporting substantial investments in technological, digital and environmental transformation towards Utility 4.0. The increase is also linked to the amount consisting in special items, which contributed with 56.2 million euro, as result of the tax realignment of certain goodwill items recorded in the financial statements, offset by the expenses arising from the partial repurchase, last spring, of a 700 million euro bond maturing in 2028. Net profit post minorities also increased sharply, rising to 308.4 million euro from 233.1 million euro at 30 September 2020 (+32.3%). Operating investments at 377.2 million euro and stable net financial debt In the first nine months of 2021, Hera made operating investments coming to 377.2 million euro, an increase of over 13% compared to the 333.6 million euro seen in the same period of the previous year, with an important focus on the projects, including green initiatives foreseen in the Business Plan. These investments were mainly allocated to plants, networks and infrastructures, as well as regulatory upgrading in purification and sewage and a large-scale installation of new-generation gas meters. In addition to financing these investments and paying increased dividends, the positive cash flow generation also made it possible to cover the repurchase of maturing bonds and a large portion of the M&A transactions, keeping net financial debt essentially stable at 3,303.8 million euro in the first nine months of 2021, in line with the 3,227.0 million euro seen at 31 December 2020. Hera’s financial strength – which is also clear from the assessments made by the main rating agencies: BBB+ with stable outlook from Standard & Poor’s, Baa2 from Moody’s - is also confirmed by the Net debt/Ebitda ratio, which stood at 2.75x, an improvement compared to the 2.87x seen at the end of 2020 and 2.97x at 30 September 2020. These aspects go hand in hand with the pursuit of sustainable development, as confirmed by Hera’s recent inclusion in the MIB ESG Index, Italy’s first blue-chip index dedicated to Environmental, Social, and Governance (ESG) best practices. In October, furthermore, Hera successfully launched its first sustainability-linked bond, worth 500 million euro, gathering great interest from international investors, who subscribed with roughly four times the amount offered. This bond is part of a sustainability strategy aimed at reducing emissions and recycling plastics. At the same time, after the end of the quarter, the Group carried out a liability management transaction to repurchase nominal 350 million euro in financing maturing in the next few years, with effects that will be recorded at year-end. Profit & Loss (m€) 30/09/2021 Inc. % 30/09/2020 Inc. % Ch. Ch. % Sales 6,242.3 4,905.9 +1,518.4 +31.0% Other operating revenues 243.6 3.8% 355.7 7.3% (112.1) (31.5%) Raw material (3,469.3) (54.0%) (2,314.9) (47.2%) +1,154.4 +49.9% Services costs (1,858.6) (28.9%) (1,696.9) (34.6%) +161.7 +9.5% Other operating expenses (54.4) (0.8%) (41.8) (0.9%) +12.6 +30.2% Personnel costs (442.0) (6.9%) (424.0) (8.6%) +18.0 +4.2% Capitalisations 39.7 0.6% 22.2 0.5% +17.5 +79.0% Ebitda 883.3 13.7% 806.2 16.4% +77.1 +9.6% Depreciation and provisions (412.5) (6.4%) (391.5) (8.0%) +21.0 +5.4% Ebit 470.8 7.3% 414.7 8.5% +56.1 +13.5% Financial inc./(exp.) (85.4) (1.3%) (79.5) (1.6%) +5.9 +7.4% Pre tax profit 385.4 6.0% 335.2 6.8% +50.2 +15.0% Taxes (101.0) (1.6%) (90.5) (1.8%) +10.5 +11.6% Net profit 284.4 4.4% 244.7 5.0% +39.7 +16.2% Special items 56.2 0.9% - 0.0% +56.2 +100.0% Net profit 340.6 5.3% 244.7 5.0% +95.9 +39.2% Attributable to: Shareholders of the Parent Company 308.4 4.8% 233.1 4.8% +75.3 +32.3% Minority shareholders 32.2 0.5% 11.6 0.2% +20.6 +177.9% Balance Sheet (m€) 30/09/2021 Inc.% 31/12/2020 Inc.% Ch. Ch. % Net fixed assets 7,146.6 104.4% 6,983.6 109.4% +163.0 +2.3% Working capital 360.0 5.3% 53.6 0.8% +306.4 +571.6% (Provisions) (658.5) (9.7%) (654.9) (10.2%) (3.6) +0.5% Net invested capital 6,848.1 100.0% 6,382.3 100.0% +465.8 +7.3% Net equity 3,544.3 51.8% 3,155.3 49.4% +389.0 +12.3% Long term net financial debt 3,490.0 51.0% 3,617.1 56.7% (127.1) (3.5%) Short term net financial debt (186.2) (2.8%) (390.1) (6.1%) +203.9 (52.3%) Net financial debts 3,303.8 48.2% 3,227.0 50.6% +76.8 +2.4% Net invested capital 6,848.1 100.0% 6,382.3 100.0% +465.8 +7.3% Risultati finanziari 2014-03-19 Risultati finanziari The Group consolidates the first nine months of the year with operating-financial indicators showing growth compared to the same period in 2020, and results exceeding the expectations set out in the Business Plan /-/hera-bod-approves-3q-2021-results /group_eng/investors Press release Visit Investor Relations website area Risultati finanziari