Transaction successfully closed – Ardian Semiconductor becomes majority shareholder; Hartung founding family remains significant indirect shareholder; Squeeze-out request received

centrotherm international AG ("Company" or "centrotherm") announces the completion yesterday of the transaction between its previous majority shareholder Solarpark Blautal GmbH ("Solarpark Blautal") and Ardian, a world-leading private investment firm. After ful-filling all closing conditions, the transaction announced in an ad hoc announcement on No-vember 6, 2025, has been successfully completed. Ardian Semiconductor, a fund specialized in investments in the European semiconductor industry, has acquired Solarpark Blautal's 90 percent stake in centrotherm in full and is thus the new majority shareholder of the Compa-ny. As part of the transaction, Solarpark Blautal is reinvesting part of the proceeds from the sale and will retain an indirect stake of approx. 39.5% in centrotherm, which also under-scores the long-term commitment of the Hartung founding family to centrotherm.

With Ardian Semiconductor, centrotherm gains a financially strong, internationally active pri-vate equity platform with comprehensive industry expertise, operational capabilities and a global network as the new majority shareholder, that will support the Company's further de-velopment as a leading and innovative technology and equipment provider for the semicon-ductor and photovoltaic industries. Ardian, which manages and advises on assets of around USD 196 billion, sees centrotherm as a company with a high level of innovation, in-depth technical expertise, many years of industrial experience, and excellent global customer rela-tionships, and plans to support the Management Board in the consistent implementation of its growth strategy. Together, they intend to further strengthen operational efficiency, cus-tomer proximity, and innovative power in order to expand the product range and further enhance the market position.

Centrotherm AcquiCo AG, the new majority shareholder controlled by the Ardian Semicon-ductor fund, yesterday demanded a squeeze-out under merger law from the company's management board, as centrotherm announced yesterday in an ad hoc announcement.

About centrotherm international AG

Thermal production solutions and coating technologies are among centrotherm's core competencies. For more than 70 years we have been developing and implementing production concepts for a constantly growing international customer base. In addition to growth sectors such as the semiconductor and microelectronics industry, as well as photovoltaics, our innovative solutions are also being applied in new future-oriented fields such as fiber or battery production.

As a leading, globally active technology group, we work closely with partners from industry and research. We improve existing production concepts and set new trends. In this way, we generate valuable competitive advantages for our customers. More than 700 employees worldwide are working to shape the future - GREEN | SMART | EFFICIENT.

centrotherm international AG
Württemberger Str. 31
89143 Blaubeuren
Internet: www.centrotherm.de

German Securities Identification Number (WKN): A1TNMM (bearer shares); A1TNMN (unlisted shares from the non-cash capital increase)
ISIN: DE000A1TNMM9 (bearer shares); DE000A1TNMN7 (unlisted shares from the non-cash capital increase)
Inclusion: Basic Board, Frankfurt Stock Exchange
Corporate domicile: Germany