Adler Group and PAUL Tech Launch Climate-Friendly Heating for 17,500 Residential Units in Berlin

PAUL Tech AG/ Key word(s): Contract/Alliance

Adler Group and PAUL Tech Launch Climate-Friendly Heating for 17,500 Residential Units in Berlin

01.07.2026 / 11:00 CET/CEST

The issuer is solely responsible for the content of this announcement.

PRESS RELEASE NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, DIRECTLY OR INDIRECTLY, IN WHOLE OR IN PART, IN OR INTO THE UNITED STATES OF AMERICA, AUSTRALIA, CANADA, JAPAN, SOUTH AFRICA OR ANY OTHER JURISDICTION IN WHICH OFFERS OR SALES WOULD BE PROHIBITED BY APPLICABLE LAW. THIS ANNOUNCEMENT IS FOR INFORMATION PURPOSES ONLY AND DOES NOT CONSTITUTE AN OFFER OF SECURITIES IN ANY JURISDICTION.Adler Group and PAUL Tech Launch Climate-Friendly Heating for 17,500 Residential Units in BerlinMannheim, 01 Dezember 2025 – PAUL Tech AG as issuer ("Issuer") of the existing EUR 35m 9.00% 2020/2026 bond (ISIN: DE000A3H2TU8 / WKN: A3H2TU) informs about the following: Adler Group’s entire building portfolio, comprising around 17,500 residential and commercial units in Berlin, will be converted to a climate-friendly heat supply over the coming two years. To this end, Adler Group and PAUL Tech AG have entered into a long-term framework agreement. Implementation will commence in summer 2026. PAUL Tech will be responsible for the planning, installation and operation of the new heating systems for a 15 year term. The rollout is based on PAUL Net Zero, the Company’s integrated technology platform combining highly efficient heat pump systems with AI-driven energy optimization and intelligent control and monitoring technologies. Through this partnership, Adler Group and PAUL Tech AG aim to significantly reduce CO₂ emissions across the property portfolio, sustainably improve the energy efficiency of the buildings and prepare them for the long-term requirements of the heating transition. The gradual replacement of fossil-based heating systems with climate-friendly heating technology will reduce dependence on natural gas and heating oil while providing a reliable long-term heat supply. Against the backdrop of rising carbon prices and the expected increase in fossil fuel costs, tenants will benefit from an early transition to climate-friendly heating.Dr. Karl Reinitzhuber, Chief Executive Officer of Adler Group: "This year, we are making major progress in strengthening our Berlin portfolio and the associated management platform. With PAUL Tech as a leading partner in climate-friendly heat supply, and through the consistent digitalization of our processes such as our recently launched tenant app and AI-supported tenant communication, we are continuously improving the service for our tenants and thereby strengthening the value of our portfolio."Jannik Heß, Chief Operating Officer of Adler Group: "Decarbonizing our Berlin residential portfolio is one of our key strategic priorities. With PAUL Tech AG, we have found a suitable partner with the technical expertise and operational capabilities required to deliver a project of this scale while buildings remain occupied. Our objective is to provide our tenants with a heat supply that is climate-friendly, reliable and economically sustainable over the long term."Sascha Müller, Chief Executive Officer of PAUL Tech AG: "The heating transition in existing buildings must now move into large-scale implementation. Together with Adler Group, we are demonstrating that climate-friendly heating can already be delivered economically, reliably and at scale for thousands of residential units. This ability to scale is exactly what Berlin needs to achieve its climate targets."Adler Group Adler Group S.A. is a Luxembourg-based real estate holding company with numerous subsidiaries (Adler Group) mainly operating in Germany. It specialises in the management and development of income-producing, multi-family residential real estate. Adler Group owns and manages approximately 17,500 units, largely concentrated in Berlin. In addition, Adler Group develops real estate projects in the largest cities of Germany. Learn more at: PAUL Tech AG PAUL Tech AG, based in Mannheim, is a decentralized heat provider for existing residential buildings. The company replaces fossil-based heating systems with a heat pump solution combined with its proprietary AI-based control technology (PAUL Net Zero) and is responsible for operation and heat supply. PAUL reduces emissions across the building stock and improves energy efficiency, enabling a near carbon-neutral heat supply. Contracts for the first 100,000 residential units are expected to be concluded by 2027.Investor Relations Contact PAUL Tech AG: Patrick Weiden, CFO Theodor-Heuss-Anlage 12 68165 Mannheim Tel.: +49 621 92 100 100 Fax: +49 621 92 100 101 E-Mail: ir@paul.techMedia Inquiries to PAUL Tech AG: Klaus Schmidtke, Head of Corporate Affairs / Spokesman Theodor-Heuss-Anlage 12 68165 Mannheim, Deutschland Tel.: +49 151 46680605 E-Mail: klaus.schmidtke@paul.tech PAUL Tech AG – Pioneering Energy TransitionDisclaimers:This announcement and the information contained herein is restricted and may not be published, distributed or transmitted, directly or indirectly, in the United States of America (including its territories and possessions), Australia, Canada, Japan, South Africa or any other jurisdiction where such publication, distribution or release would be unlawful. The publication, distribution or release of this announcement may be restricted by law in certain jurisdictions and persons who are in possession of this document or other information referred to herein should inform themselves about and observe any such restrictions. Further, this announcement is for information purposes only and is not an offer of, or a solicitation of an offer to purchase, sell or subscribe for, securities in any jurisdiction. Any failure to comply with these restrictions may constitute a violation of the securities laws of any such jurisdiction.No reliance may be placed for any purpose on the information contained in this announcement or its accuracy or completeness. No prospectus or offering document has been or will be prepared in connection with the offering of, or solicitation of an offer to purchase, sell or subscribe for, the securities referred to herein. The securities referred to herein may not be offered, and no solicitation of an offer to purchase, sell or subscribe for, such securities may be made, to the public in any jurisdiction in circumstances which would require the preparation or registration of any prospectus or offering document relating to the securities referred to herein in such jurisdiction.This announcement does not constitute an offer to sell or a solicitation of an offer to purchase any securities of the Issuer or any of its subsidiaries in the United States of America, Germany, or any other jurisdiction. Neither this announcement nor any part thereof shall form the basis of, or be relied upon in connection with, any offer or commitment whatsoever in any jurisdiction. The securities referred to herein have not been and will not be registered under the U.S. Securities Act of 1933, as amended (the Securities Act"), and may not be offered or sold in the United States except pursuant to an effective registration under the Securities Act or in reliance on an exemption from, or in a transaction not subject to, the registration requirements of the Securities Act.In the United Kingdom, this announcement is only directed at "qualified investors" within the meaning of the UK Prospectus Regulation who (i) are investment professionals falling within Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005 (as amended) (the "Order") or (ii) are persons falling within Article 49(2)(a) to (d) of the Order (high net worth companies, unincorporated associations, etc. (all such persons together being referred to as "Relevant Persons")). This document must not be acted on, or relied upon, by persons who are not Relevant Persons. Any investment or investment activity to which this document relates is available only to Relevant Persons and will be engaged in only with Relevant Persons.In member states of the European Economic Area ("EEA") the placement of, and invitation to submit any offer to purchase, sell or subscribe for, any securities described in this announcement is directed exclusively at persons who are "qualified investors" within the meaning of Regulation (EU) 2017/1129, as amended.No action has been taken that would permit an offering or an acquisition of, or a solicitation of an offer to purchase, sell or subscribe for, the securities or a distribution of this announcement in any jurisdiction where such action would be unlawful. Persons into whose possession this announcement comes are required to inform themselves about and to observe any such restrictions.This announcement does not constitute a recommendation or advice concerning the placement of, or invitation to submit any offer to purchase, sell or subscribe for, any securities. Investors should consult a professional advisor as to the suitability of the placement of, or invitation to submit any offer to purchase, sell or subscribe for, any securities for the person concerned.This release may contain forward looking statements, estimates, opinions and projections with respect to anticipated future performance of the Company ("forward-looking statements"). These forward-looking statements can be identified by the use of forward-looking terminology, including the terms "targets", "plans", "aims", "projects", "believes," "estimates," "anticipates," "expects," "intends," "may," "will" or "should" or, in each case, their negative, or other variations or comparable terminology. These forward-looking statements include all matters that are not historical facts. Forward-looking statements are based on the current views, expectations and assumptions of the management of the Company and involve significant known and unknown risks and uncertainties that could cause actual results, performance or events to differ materially from those expressed or implied in such statements. Forward-looking statements should not be read as guarantees of future performance or results and will not necessarily be accurate indications of whether or not such results will be achieved. Any forward-looking statements included herein only speak as at the date of this release. We undertake no obligation, and do not expect to publicly update, or publicly revise, any of the information, forward-looking statements or the conclusions contained herein or to reflect new events or circumstances or to correct any inaccuracies which may become apparent subsequent to the date hereof, whether as a result of new information, future events or otherwise. We accept no liability whatsoever in respect of the achievement of such forward-looking statements and assumptions.

01.07.2026 CET/CEST Dissemination of a Corporate News, transmitted by - a service of .

The issuer is solely responsible for the content of this announcement.

The EQS Distribution Services include Regulatory Announcements, Financial/Corporate News and Press Releases.

2357358 01.07.2026 CET/CEST Saving the news in databases or any forwarding of the news to third parties in a commercial context or for commercial purposes is only permitted with the prior written consent of EQS Group AG.