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Group confirmed as one of the world’s sustainability leaders in both the Dow Jones Sustainability World Index and the Dow Jones Sustainability Europe Index, once again recognizing Hera’s decades-long strategy for long-term value creation for its shareholders and for all stakeholders The Hera Group, one of Italy’s largest multi-utilities operating in the waste management, energy and water sectors, was included in the Dow Jones Sustainability Index for the fourth year in a row. The composition of the DJSI, the authoritative international stock market index, includes the best performing listed companies in the Environmental, Social and Governance & Economics dimensions. As was the case in previous years, and as announced yesterday evening by S&P Global, Hera is included in both the global and European indices and achieved the highest score in the Environmental and Social areas among the companies in the Multi-Utility & Water sector included in the indices. This inclusion provides further recognition of the company’s achievements in creating shared value benefitting all stakeholders in line with the company’s purpose. Publicly listed since 2003 and on the FTSE MIB since 2019, Hera stock, which is part of the Dow Jones Sustainability Index since 2020, was also included in 2021 in the MIB ESG Index, the first blue-chip index for Italy dedicated to ESG best practices, launched by Euronext and Borsa Italiana. The Hera Group has also been included for some time in Refinitiv’s Diversity & Inclusion Index and in the Bloomberg Gender-Equality Index, confirming its commitment to promoting diversity, inclusion and people development. See the press release Hera in the DJSI for the fourth year straight.pdf 2023-12-09 09:20:00 Nuova_Palazzina_1_110x150_s1.jpg

(drafted pursuant to article 85-bis, paragraph 4-bis, of Consob Regulation 11971 / 14 May 1999) Bologna, 4 December 2023 - The following table contains the data concerning the shares outstanding and the number of voting rights representing the share capital as at 30 November 2023. Updated situation Previous situation Number of shares constituting the Share capital Number of voting rights Number of shares constituting the Share capital Number of voting rights Total of which: 1,489,538,745 2,229,163,314 1,489,538,745 2,229,225,313 Ordinary shares (regular dividend rights: 01.01.2021) - cod. ISIN IT0001250932 Current coupon: n. 20 749,914,176 749,914,176 749,852,177 749,852,177 Ordinary shares with increased voting rights (regular dividend rights: 01.01.2021) - cod. ISIN IT0005159972 Current coupon: n. 20 739,624,569 1,479,249,138 739,686,568 1,479,373,136 See the press release 12_2023 Communication-overall-amount-of-voting-rights-art-85-bis.pdf 2023-12-04 09:35:00 Communication of the overall amount of voting rights Communication of the overall amount of voting rights

Following Ascopiave’s partial exercise of the put option, the Hera Group, through its subsidiary Hera Comm, now holds 75% of EstEnergy, the largest energy operator in North-Eastern Italy Nuova_Palazzina_110x150.1533218221.jpg This morning in Bologna, the Hera Group, acting through its subsidiary Hera Comm, and Ascopiave signed a deed of transfer from the latter of a 15% shareholding in EstEnergy, for a counter value of 137.5 million euro. EstEnergy is the commercial joint venture established in 2019 that with over one million customers is North-Eastern Italy’s largest energy operator. This operation results from a partial exercise of the put option held by Ascopiave on its shareholding in the company, as defined in the agreements signed between the parties when the partnership was created. An additional 8% shareholding in EstEnergy was transferred by Ascopiave to Hera Comm on 1 December 2022. As a result of today’s transaction, the Hera Group’s holding in EstEnergy rises to 75%, while Ascopiave’s falls to 25% of the share capital. The right to sell this shareholding remains unchanged, at the previously defined conditions, and the current governance rights are maintained. This transaction will allow the Ascopiave Group to improve the sustainability of its asset structure, consistently with the goals in its strategic plan, contributing to the financial coverage of medium-term investments in core and diversification activities. At the same time, the Hera Group will additionally reinforce its presence in the energy sector, where it is already the third-largest operator in Italy, with 3.8 million customers, to continue generating tangible benefits for customers and the served areas. This transaction, indeed, has made it possible to create new strategic synergies for developing value-added services and working towards decarbonisation and energy efficiency, significantly contributing to achieving the targets set out in Hera’s business plan, also in terms of environmental sustainability. See the press release 20231110_Ascopiave transfers EstEnergy shares to Hera Group.pdf 2023-11-10 11:01:00 Nuova_Palazzina_110x150.1533218221.jpg

Analyst presentation Q3 2023.pdf