Industrie De Nora

Report Publication Announcement • May 11, 2023

PUBLICATION OF THE INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

Milan, May 11, 2023 - Industrie De Nora S.p.A. ("IDN" or the "Company") hereby announces that De Nora Group Interim Condensed Consolidated Financial Statements as of March 31, 2023 have been made available at the Company's registered office, on the authorized storage mechanism () and can be also accessed on the Company's website (www.denora.com), in the section "Investor Relations / Documents and Results".

* * * Industrie De Nora is an Italian multinational company listed on the Euronext Milan stock exchange, specializing in electrochemistry, a leader in sustainable technologies, and has a vital role in the industrial green hydrogen production chain. The Company has a portfolio of products and systems to optimize the energy efficiency of critical industrial electrochemical processes and a range of products and solutions for water treatment. Globally, Industrie De Nora is the world's largest supplier of activated electrodes (serving a broad portfolio of customers operating in the fields of chlorine and caustic soda production, components for electronics, and non-ferrous metal refining). Industrie De Nora is also among the world's leading suppliers of water filtration and disinfection technologies (for the industrial, municipal, and marine sectors) and the world's leading swimming pool disinfection components supplier. Leveraging its well-established electrochemical knowledge, proven manufacturing capability, and a supply chain established over the years, the Company has developed and qualified a portfolio of electrodes and components to produce hydrogen through the electrolysis of water, which is critical for the energy transition. In this sector, the company also holds 34% of thyssenkrupp nucera AG &Co. KGaA, a joint venture established with the thyssenkrupp group.

Founded in 1923, Industrie De Nora generated total revenues of around EUR 853 million and an Adjusted EBITDA of approx. EUR 191 million in 2022. The Company's growth process has developed organically through continued penetration of new markets and applications and through acquisitions in the U.S., Asia, and Europe. De Nora's continuous innovation drives its growth, represented by its evolving intellectual property portfolio, which currently includes more than 260 patent families with more than 2,800 territorial extensions. The De Nora family controls the Group, which owns 53.3% of the Company's share capital. Snam S.p.A. is a minority shareholder with about 21.6% of the capital.

Investor Relations Chiara Locati +39 02 2129 2124 ir@denora.com

Media Relations Barabino & Partners Office: +39 02/72.02.35.35 Sabrina Ragone – s.ragone@barabino.it 338 25 19 534 Alberto Piana – a.piana@barabino.it 342 76 70 164