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Hera BoD approves results for 1H 2021 Financial highlights Revenues at 4,179.7 million euro (+22.8%) Ebitda at 617.9 million euro (+10.4%) Net profit for Shareholders at 216.1 million euro (+30.0%) Strong improvement in net financial debt, now at 2,956.7 million euro, with a further decrease in the net debt/Ebitda ratio, now at 2.5x Operating highlights Good contribution to growth comes from the Group’s main businesses, in particular the energy and waste areas Progression of results underpinned both by organic growth and M&A Solid customer base in energy sectors, coming to almost 3.4 million customers The Hera Group’s Board of Directors, chaired by Tomaso Tommasi di Vignano, unanimously approved the consolidated operating results for the first half of 2021, which confirm the positive trend shown by the Group, with strong growth in the main operating and financial indicators, and financial solidity confirmed by the further improvement in the net debt/Ebitda ratio, now at 2.5x. Among the main changes in the scope of consolidation, external growth occurred through a few transactions in the waste management sector, in particular the acquisition of 70% of Recycla, a Friuli-based company that manages three platforms for solid and liquid industrial waste and is headquartered in Maniago (PN), consolidated in the first half of 2021. In addition, 31% of SEA, a company operating in the Marche region with a solid facility for industrial waste, was acquired, and a further transaction will be closed in the same area within the summer. Furthermore, another acquisition will contribute to the results in second half: yesterday it was finalised the acquisition of the 90% of share capital of Ecogas, operating in Abruzzo, which will bring roughly 22,000 new customers and will lead the Group to consolidate its role as the third largest operator in that area, with roughly 90,000 customers. Revenues increase sharply, coming to roughly 4.2 billion euro In the first half of 2021, revenues amounted to 4,179.7 million, rising considerably by 777.4 million (+22.8%) compared to the 3,402.3 million seen in the same period of 2020, thanks to the contribution coming from all business areas. In particular, the waste management sector contributed to growth with an increase in waste treated and plastics sold, as did the energy areas. In this area, higher revenues came from trading, higher volumes of gas sold, the increased price of electricity and generation, as well as growth in the heat management business and value-added services. Ebitda rises to 617.9 million euro Ebitda amounted to 617.9 million, up by 58.2 million (+10.4%) over the 559.7 million seen at 30 June 2020. This growth was mainly driven by the energy area, due to higher sales and trading margins, and the waste management sector. Operating results and pre-tax profits increase Operating income rose to 343.6 million (+16.2%), compared to 295.7 million in the same period of 2020, partially due to improved financial operations, coming to 55.1 million. This result includes higher charges resulting from the sale of tax credits as part of ecobonus-related activities. Pre-tax profit rose to 288.5 million (+20.5%), up compared to the 239.5 million in the first half of 2020, for reasons including non-recurring items related to a tax exemptions, as described in further detail below. Net profits for Shareholders up, reaching 216.1 million euro Thanks to a tax rate coming to 26.7%, an improvement compared to the 27% seen in the first half of 2020, achieved thanks to the Group’s commitment investment in technological, digital and environmental transformation following Utility 4.0 trends, net profits at 30 June 2021 rose to 236.2 million (+35.1%), compared to 174.9 million in the first half of 2020. This increase is also linked to the value of special items, which contributed with 24.7 million, also due to the effects of the tax realignment concerning some goodwill recognised in the financial statements for 46.3 million. Also due to this factor, profit attributable to Group Shareholders increased sharply, coming to 216.1 million (+30.0%), as against the 166.2 million seen in the same period one year earlier. Strong increase in investments and improvement in net financial debt Net operating investments went from 195.1 million at 30 June 2020 to 237.4 million in the first half of 2021, up 21.7%, and were mainly related to works on plants, networks and infrastructures, in addition to investments for the large-scale meter replacement and the purification and sewage sector. Thanks to the positive contribution coming from operations, which allowed both higher investments and M&A transactions to be fully financed, net financial debt further improved, settling at 2,956.7 million at 30 June 2021, compared to 3,227.0 million at 31 December 2020. The Group’s financial solidity was also confirmed by the net debt/Ebitda ratio, which in the first half of 2021 dropped to 2.5x, a further improvement compared to 2.87x at the end of 2020 and 2.81x at 30 June 2020. Hera’s financial strength – also reflected in the ratings given by the main rating agencies, including Standard & Poor's recent upgrade to BBB+ with a stable outlook – goes hand in hand with the sustainable development strategy it has pursued since its establishment, along with its ability to manage risks and opportunities, as shown by S&P Global Rating’s ESG Evaluation. Statement by Executive Chairman Tomaso Tommasi di Vignano Our half-year results reflect the good performance of the Group and encourage us to look towards the future with confidence, in line with our long-standing path of growth and our focus on creating value for our shareholders and the local areas in which we operate. In particular, respecting the strategic guidelines contained in our Business Plan to 2024, we are carrying out a series of transactions aimed at external growth, which will allow us to consolidate our leadership in Italy in waste treatment and further expand our plant platform, with cutting-edge facilities and circular economy solutions for companies. In this way, we will be able to continue to extend the scope of our activity, extracting synergies and guaranteeing increasing benefits for our customers, thanks to a more pervasive presence in the areas served. The acquisitions in the waste management area alone, once completed, will create an additional contribution to the Hera Group’s Ebitda coming to approximately 20 million euro, above and beyond the value of the synergies expected from these integrations. Statement by CEO Stefano Venier The results achieved in the first half of the year show a further reinforcement of our financial solidity, based on an excellent operating performance and effective management of working capital. This balanced and solid path allows us to effectively govern the changes underway, guaranteeing further expansion in investments and continuing to implement the development strategy outlined in our Business Plan, capable of combining growth and solutions supporting the transition, as further confirmed quite recently by S&P Global Rating’s ESG Evaluation. Profit & Loss (m€) 30/06/2021 Inc. % 30/06/2020 Inc. % Ch. Ch. % Sales 4,179.7 3,402.3 +777.4 +22.8% Other operating revenues 140.2 3.4% 222.6 6.5% (82.4) (37.0%) Raw material (2,128.5) (50.9%) (1,605.1) (47.2%) +523.4 +32.6% Services costs (1,260.1) (30.1%) (1,151.0) (33.8%) +109.1 +9.5% Other operating expenses (37.9) (0.9%) (32.5) (1.0%) +5.4 +16.6% Personnel costs (301.8) (7.2%) (290.9) (8.5%) +10.9 +3.7% Capitalisations 26.3 0.6% 14.3 0.4% +12.0 +84.0% Ebitda 617.9 14.8% 559.7 16.5% +58.2 +10.4% Depreciation and provisions (274.3) (6.6%) (264.0) (7.8%) +10.3 +3.9% Ebit 343.6 8.2% 295.7 8.7% +47.9 +16.2% Financial inc./(exp.) (55.1) (1.3%) (56.2) (1.7%) (1.1) (2.0%) Pre tax profit 288.5 6.9% 239.5 7.0% +49.0 +20.5% Taxes (77.0) (1.8%) (64.6) (1.9%) +12.4 +19.2% Net profit 211.5 5.1% 174.9 5.1% +36.6 +20.9% Special items 24.7 0.6% - 0.0% +24.7 +100.0% Net profit 236.2 5.7% 174.9 5.1% +61.3 +35.1% Attributable to: Shareholders of the Parent Company 216.1 5.2% 166.2 4.9% +49.9 +30.0% Minority shareholders 20.1 0.5% 8.7 0.3% +11.4 +131.1% Balance Sheet (m€) 30/06/2021 Inc.% 31/12/2020 Inc.% Ch. Ch. % Net fixed assets 7,097.6 113.4% 6,983.6 109.4% +114.0 +1.6% Working capital (176.8) (2.8%) 53.6 0.8% (230.4) (429.9%) (Provisions) (663.4) (10.6%) (654.9) (10.2%) (8.5) +1.3% Net invested capital 6,257.4 100.0% 6,382.3 100.0% (124.9) (2.0%) Net equity 3,300.7 52.7% 3,155.3 49.4% +145.4 +4.6% Long term net financial debt 3,460.6 55.3% 3,617.1 56.7% (156.5) (4.3%) Short term net financial debt (503.9) (8.0%) (390.1) (6.1%) (113.8) +29.2% Net financial debts 2,956.7 47.3% 3,227.0 50.6% (270.3) (8.4%) Net invested capital 6,257.4 100.0% 6,382.3 100.0% (124.9) (2.0%) Hera BoD approves results for 1H 2021 2019-07-18 For further information Hera BoD approves results for 1H 2021 The half-year report shows significant growth in operating and financial indicators, thanks to the contribution coming from the Group’s main businesses. The pursuit of sustainable development and financial solidity are confirmed as strong points /-/hera-bod-approves-results-for-1h-2021 /group_eng/investors /group_eng/investor-relations/hera-overview Press release Visit Investor Relations website area Hera overview Hera BoD approves results for 1H 2021

Sede Hera We rank 5th internationally among the Utility Networks assessed by this rating agency’s Sustainable Finance analysts, thanks to our focus on sustainability and our ability to manage risks and opportunities After being included in the Dow Jones Sustainability Index, World and Europe, in 2020, we have once again confirmed our standing as one of the companies most attentive to sustainability and ESG aspects internationally. Hera’s ESG Evaluation, carried out by the Sustainable Finance analysts of S&P Global Ratings, was indeed published. This is a cross-industry assessment of a company’s ability to effectively manage, over the medium and long term, its exposure to environmental, social and governance risks, as well as to seize opportunities arising from the changes occurring in a constantly evolving international context. We are the first company in Italy to publish its ESG Evaluation, in which we obtained an overall score of 81/100, making it one of the top fifteen companies assessed internationally by S&P Global Ratings. The score obtained (81) places us well above the international (68) and European (73) average and ranks us fifth internationally among Utility Networks (with the sector average coming to 74). In particular, in the ESG Evaluation, we are assessed by S&P Global Ratings as being strongly prepared to implement its growth and development strategy, ready to face the potential risks deriving from regulations in an economy that is moving towards the circular model, with low emissions, supporting the resilience of its well-diversified business model. S&P Ratings 2019-07-18 S&P Ratings We rank 5th internationally among the Utility Networks assessed by this rating agency’s Sustainable Finance analysts, thanks to our focus on sustainability and our ability to manage risks and opportunities /-/hera-among-the-best-utilities-in-the-s-p-global-ratings-esg-evaluations /group_eng/investors /group_eng/investor-relations/hera-stock https://www.spglobal.com/ratings/en/research/pdf-articles/210721-esg-evaluation-gruppo-hera-spa-100288282 Press release Visit IR website area Hera ESG rating S&P’s ESG Evaluation Sede Hera

Herambiente acquires the company Recycla The Hera Group, through its subsidiary Herambiente has acquired 70% of Recycla, a Friuli-based company that manages three platforms for solid and liquid industrial waste, whose central offices are in Maniago (PN). This transaction will confirm Herambiente’s position as a key operator in the sector and allow it to offer its across-the-board waste treatment solutions to new customers. Through its company Hasi (Herambiente Servizi Industriali), Herambiente has thus consolidated and expanded its facilities serving businesses, with 15 multifunctional sites dedicated to the treatment of waste produced by companies and 1.2 million tonnes of industrial waste treated each year. More specifically, the Maniago platform for solid and liquid industrial waste handles over 40,000 tonnes per year of waste produced by companies. In line with the principles of the circular economy, this waste is pre-treated to optimise its characteristics and is mainly destined for energy recovery or chemical-physical treatment. Therefore, only 3% of the waste entering the platform is disposed of in landfills. This transaction, which follows the acquisitions completed in recent years (from Waste Recycling, Teseco and Pistoia Ambiente in Tuscany and Geo Nova and Aliplast in Treviso), is a new step in Herambiente’s continuous growth in the industrial waste treatment sector. This development will be further strengthened by two agreements already signed with companies operating in the Marche and Veneto regions in the same industrial sector, which will be finalised within the summer. When fully operational, thanks to these three transactions, an additional 350,000 tonnes of industrial waste produced by 3,300 new customers will be treated each year. Herambiente acquires the company Recycla 2019-07-18 Herambiente acquires the company Recycla The Hera Group has consolidated its leadership in industrial waste treatment and extended its scope of operations in northern Italy thanks to the acquisition of this Friuli-based company /-/herambiente-acquires-the-company-recycla http://ha.gruppohera.it/?lang=2 Press release Visit Herambiente's website Herambiente acquires the company Recycla

Top10 2021 We rank first among Italian companies for its full and conscious integration of sustainability policies within its business strategies. This has been confirmed by the 2021 Integrated Governance Index, presented today at the ESG Business Conference, an authoritative model for analysing ESG factors, i.e. the social, environmental and governance aspects of business activities. In addition to leading the overall ranking, we also stand out in two other dedicated rankings. For the fourth year in a row, the Group is at the top of the sustainable finance category, which analyses the links between a company and responsible investors. It also ranked second in the special 2021 ESG Identity survey, which focuses on a company’s ability to enhance its sustainable identity, through means including stakeholder involvement, first and foremost customers and suppliers. Sustainability at the heart of the Group’s strategies For us, uninterrupted growth in operating results goes hand in hand with increasing attention to sustainability. In 2016, we introduced shared value reporting, referring to those business activities which, in addition to generating margins, respond to the drivers for sustainable growth defined by the UN 2030 Agenda and, more generally, various national and international policies. We gave further evidence of the central role played by creating shared value when it introduced the concept of Purpose in our Articles of Association, among the first companies in Italy to do so. Last April, the Shareholders Meeting approved a paragraph explaining the Group’s corporate purpose, i.e. the objectives it aims to achieve in carrying out its business activities, thus reaffirming its commitment to sustainability. The Integrated Governance Index The Integrated Governance Index is the only model for quantitatively analysing degree to which ESG factors are integrated into corporate strategies. Developed by ETicaNews, with the academic and legal support of specialised associations and advisors, it is now in its sixth edition. This index is increasingly used as an indicator of a company’s ESG identity. Top3 Area Finanza 2019-07-18 Top3 Area Finanza We lead the overall ranking in this index, which measures the extent to which sustainability is integrated within corporate strategies /-/hera-at-the-top-of-the-2021-integrated-governance-index /group_eng/sustainability/sustainability-report/sr /group_eng/corporate-governance/corporate-governance-system/articles-of-associations /group_eng/investor-relations/debit-and-rates/bond-issuances Press release Sustainability Report 2020 Our Articles of associations Green Bonds Top10 2021