We are Shaping the Future of Energy in Istanbul!

We inaugurated our “Energy Technologies R&D Unit” at the Technopark located on the Davutpaşa campus of Yıldız Technical University. The opening ceremony was attended by the senior management of IMM, our management staff, the General Managers and executives of İgdaş, İsbak, Ugetam, which are our stakeholder subsidiaries in R&D activities, the Rector of YTÜ, the General Manager of Teknopark, scientists from the academic staff of many universities, managers of professional chambers and important names from technical-based non-governmental organizations. Following the opening speech and presentation of our General Manager Yüksel Yalçın, YTÜ Rector Tamer Yılmaz and IBB Energy Coordinator Dr. M. Bülent Özmen, who is also the General Manager of İgdaş, made speeches at the opening ceremony. **We Aim to Move Our Country Further in the Field of Energy Technologies ** In his speech, Yüksel Yalçın, our General Manager, said: “Our aim is to develop our competencies in the field of renewable energy technologies through R&D collaborations with the academic environment of Yıldız Technical University and companies working in the field of energy in the Technopark, to train qualified human resources in this field, and to carry out joint studies in the field of energy with our other subsidiaries. Energy technologies and equipment are constantly being renewed with the development of technology, requiring more efficient, long- lasting and high quality equipment production. As a company that also produces energy in this sector, one of our basic policies is to position ourselves at the center of technological developments.” In his speech, Yalçın shared that university collaborations are very important and said, “We want to strengthen our university-industry cooperation with technical and scientific principles and to carry out patent, utility model product and system studies. We aim to move our country further in the field of energy technologies bydeveloping national and international incentive-supported R&D projects on energy issues. **Taking Part in Technoparks is Very Important ** Yalçın; R&D is a very important function for companies operating in the energy sector. This function turns into solutions that produce more qualified results in technoparks. For this reason, it is very important for us to take part in YTU Yıldız Technopark.” Yalçın underlined that YTU Technopark is one of the most important technology bases in Turkey and stated that one of the main reasons for wanting to be located here is that it has been selected as the first Technopark of Turkey for 3 years. He added that we consider it very important to be located here. Yalçın concluded his words by saying, “May our initiative be beneficial for our company and IBB big family.”

Another important step has been taken in line with Istanbul’s environmental sustainability goals. The district’s first Sustainable Energy and Climate Action Plan (SECAP), prepared in collaboration with Çatalca Municipality, was introduced to the public at a widely attended meeting. The meeting was attended by our General Manager Dr. Yüksel Yalçın, Çatalca Mayor Erhan Güzel, deputy mayors, technical teams, neighborhood headmen, representatives of civil society organizations, and district administrators. With strong stakeholder interest, the meeting provided a detailed presentation of SECAP’s content, implementation strategies, and goals to the public. “A Model Plan for a Carbon-Neutral Future” In his speech, our General Manager Dr. Yüksel Yalçın emphasized that Çatalca makes a meaningful contribution to Istanbul’s sustainability vision with this comprehensive plan. Yalçın stated, “This SECAP, prepared for a district like Çatalca with high environmental and agricultural potential, serves as a roadmap that sets an example for a carbon-neutral future. As Istanbul Energy, we will continue to provide technical and strategic support at every stage of this process.” “Beautiful City Çatalca” Vision Comes to Life Çatalca Mayor Erhan Güzel, in his speech, recalled his statement made on November 21, 2024, in the same hall: “This date is a milestone for Çatalca; nothing will ever be the same again,” and noted that this promise is now becoming a reality. Mayor Güzel emphasized that Çatalca is now moving forward with a management approach supported by scientific data, compliant with regulations, and responsive to contemporary needs. What Does the Plan Bring? According to the prepared SECAP, the main steps to be implemented in Çatalca include: • Designing new buildings to be suitable for solar energy, • Standardizing rainwater harvesting and greywater usage, • Ensuring energy efficiency in public buildings, • Expanding bicycle paths and electric vehicle infrastructure, • Establishing infrastructure systems resilient to natural disasters, • Supporting climate-friendly agricultural practices, • Adopting transparent auditing mechanisms and environmentally friendly urban planning processes.

Aiming to contribute to Istanbul’s sustainability vision, the seminar “Change for the Future with Sustainable Energy, Transform for Nature,” organized by Çatalca Municipality, was held at Çatalca Millet Garden with wide participation. Our General Manager, Dr. Yüksel Yalçın, served as the moderator of the seminar, while speakers included Istanbul Metropolitan Municipality Council Member and Chair of the Environment, Renewable Energy, and Climate Change Commission Gökhan Taneri Vural, Çatalca Mayor Erhan Güzel, and journalist-author Cem Seymen. Participants emphasized the steps needed to combat the climate crisis, the importance of energy efficiency policies, and the necessity of expanding zero-waste practices. Particular attention was drawn to the role of individual awareness and collaboration with local administrations in this transformation process. In his opening speech, our General Manager Dr. Yüksel Yalçın stated: “A sustainable future is possible not only through institutional policies but also through the joint effort of all segments of society. Today, we are gathered here to discuss how green transformation can create a strong impact starting locally and to take ownership of this process together.” Throughout the seminar, participants were engaged not only with information but also with practical experiences. Topics ranged from renewable energy technologies and waste management to energy efficiency and individual environmental responsibility, all discussed with up-to-date data, field examples, and proposed solutions. This gathering was evaluated not just as a one-time event but as a strong step nurturing social awareness within Istanbul’s environmental transformation vision. Participants reached a consensus that such local knowledge-sharing initiatives should also be implemented in other districts of Istanbul. As Istanbul Enerji, we are not only an institution that produces and manages energy but also a partner committed to promoting a culture of sustainable living. We continue to support Istanbul’s goal of becoming a climate-friendly city not only through technical investments but also through human engagement, adding value to nature, society, and the future.

In collaboration with Istanbul Energy, the Çatalca Municipality took an important step toward the district’s sustainability vision through a workshop organized within the scope of the Sustainable Energy and Climate Action Plan (SECAP). The event, held at the Çatalca Atatürk Sports Complex, brought together local government representatives, technical experts, non-governmental organizations, and citizens. The meeting was attended by Istanbul Energy CEO Dr. Yüksel Yalçın; Deputy Mayors Ayhan Tutun, Burak Tan, Ayhan Ormanoğlu, and Atilla Şahin representing Çatalca Mayor Erhan Güzel; municipal council members; neighborhood heads; academicians; and numerous participants. During the event, topics such as reducing greenhouse gas emissions, climate change adaptation strategies, and actionable plans tailored to the district were discussed. Following technical presentations, workshop sessions collected participants’ opinions and suggestions, ensuring that the plan was shaped in a participatory manner suited to local conditions. In his speech at the workshop, Istanbul Energy CEO Dr. Yüksel Yalçın stated: "We prioritize working with local governments for a sustainable future. Contributing to Çatalca’s green transformation is both a responsibility and a partnership for us. This process is guided by the vision of Çatalca Mayor Mr. Erhan Güzel: ‘a clean environment and a Çatalca that produces its own energy.’ This vision has been key in shaping our project. SECAP allows us to anchor this shared goal in a systematic and sustainable framework." A Strong Local Contribution Toward the European Green Deal The SECAP report, prepared as part of the European Union alignment process, not only provides a strong foundation for the district’s climate change efforts but also opens opportunities to benefit from EU support programs. Among the plan’s targets are a 40% reduction in carbon emissions by 2030 and achieving carbon neutrality by 2050. While there are 1,423 municipalities across Turkey, fewer than fifty have completed this process so far. Çatalca’s ranking among the first 100 is regarded as a significant achievement in terms of planning, collaboration, and vision. Exemplary Local Initiatives Sustainability projects conducted with many municipalities across Istanbul have become a model of best practice nationwide. The workshop held in Çatalca stands out as a successful example of this approach. The scientific and strategic contributions provided are considered part of a long-term vision aimed at strengthening the climate action capacity of local governments. The initiatives carried out focus not only on environmental sustainability but also on social participation, institutional capacity, and local ownership. Through the prepared action plans, districts can take more concrete and measurable steps in combating the climate crisis. At the conclusion of the workshop, it was emphasized that the collaboration between Istanbul Energy and Çatalca Municipality will continue to grow in the coming period.

The “Energy Roadmap for Local Governments” panel, moderated by our CEO Dr. Yüksel Yalçın, was held with wide participation as part of the ICCI International Energy Fair and Congress. The panel featured valuable contributions regarding the energy vision of metropolitan municipalities from İzmir Energy Inc. CEO and Board Chairman Erhan Uzunoğlu, Bursa Energy Inc. CEO Erman Aydıngün, Manisa Energy Inc. CEO Atınç Aksoy, Denizli Energy Inc. Board Member Fatih Peker, Ankara ASKİ R&D Department Head Burçin Bozkurt, and Tekirdağ Metropolitan Municipality Climate Change and Zero Waste Department Head Nilgün Erkmen Göktaş. During the panel, discussions focused on enabling local governments to become self-sufficient energy producers by utilizing renewable energy sources such as solar power plants (PV), wind power plants (WPP), geothermal power plants (GPP), hydroelectric plants (HPP), and biomass power plants (BPP). Strategies to increase energy efficiency in diverse areas—from transportation to lighting, pumping stations, and smart city infrastructures—were also evaluated. In his opening speech, our CEO Dr. Yüksel Yalçın stated: "In the face of the global climate crisis, local governments must take a more active role in energy production and management processes. Today, we are discussing not only renewable energy projects but also energy efficiency, climate action plans, and inter-institutional collaboration models within the framework of the smart city vision. Our goal is to bring together collective knowledge and experience to build sustainable, self-sufficient, and resilient cities." The panel further addressed important topics such as the widespread adoption of renewable energy projects, development of energy-efficient infrastructure, implementation of Sustainable Energy and Climate Action Plans (SECAP), sharing of technical knowledge and product experiences, supply chain management, and strengthening academic and industry collaborations. Panelists shared insights on energy projects conducted in their municipalities and future objectives, providing participants with valuable experiences regarding the local government energy transition process. Enriched by participants’ questions and contributions, the session offered significant opportunities for experience sharing and developing a common vision among metropolitan municipalities. As Istanbul Energy Inc., we extend our gratitude to all speakers, participants, and viewers who contributed to the organization of the panel, and we will continue to support energy transformation in local governments.

Istanbul Energy participated in Solarex Istanbul, the 17th International Solar Energy and Technologies Fair, one of the most significant gatherings in the energy sector. Held at the Istanbul Expo Center from April 10–12, 2025, the event provided an opportunity to present our renewable energy solutions and sustainability vision to leading industry representatives. Over the course of three days, our booth attracted strong interest from visitors, highlighting Istanbul Energy’s solid position in the sector and its environmentally conscious approach. Participants had the opportunity to learn about our energy efficiency initiatives, renewable energy applications, smart lighting systems, and eco-friendly technologies up close. As part of the fair, our CEO Dr. Yüksel Yalçın delivered a comprehensive presentation, sharing our strategic vision for Istanbul’s energy transformation and showcasing exemplary projects implemented in collaboration with local governments.

82543-0 CALL FROM THE CHAIRMAN OF THE BOARD OF DIRECTORS OF İSTANBUL ENERJİ SANAYİ VE TİCARET A.Ş. FOR THE ORDINARY GENERAL ASSEMBLY MEETING In accordance with the decision of our Board of Directors dated 14.02.2025 and numbered 2025/11, and pursuant to Article 14 of our Company’s Articles of Association, the 2024 Ordinary General Assembly Meeting will be held on 09/04/2025 at 09:30 AM at the Istanbul Metropolitan Municipality Subsidiaries Coordination Directorate Meeting Hall, located at Osmaniye Mahallesi Koşuyolu Bulvarı No:1 Kat:5 34146 Bakırköy/ISTANBUL, to discuss the items listed in the agenda below. The Activity Report, financial statements, and the Board of Directors’ profit distribution proposal will be made available for review at the company headquarters at least fifteen days prior to the general assembly meeting. Shareholders who cannot attend the meeting in person may appoint a representative by completing and signing the attached proxy form and having it notarized. We respectfully invite our esteemed shareholders to attend the meeting on the specified date and time. VICE CHAIRMAN OF THE BOARD OF DIRECTORS ELÇİN KARAOĞLU BOARD MEMBER GENERAL MANAGER YÜKSEL YALÇIN Company Headquarters Address: Istanbul World Trade Center A2 Block K:17 No:467 Yeşilköy-Bakırköy/ISTANBUL Tel : 02122193976 Fax : 02123435501 Web : www.enerji.istanbul AGENDA OF THE 2024 ORDINARY GENERAL ASSEMBLY MEETING TO BE HELD ON 09/04/2025 Opening and Formation of the Meeting Presidency Reading and Discussion of the 2024 Activity Report prepared by the Board of Directors Reading of the Independent Audit Report for the 2024 Fiscal Year Reading, Discussion, and Approval of the 2024 Financial Statements Submission of any Board Member changes during the fiscal year to the approval of the General Assembly in accordance with TCC Art. 363/1 Individual discharge of Board Members for their 2024 activities Determination of the method of profit use and profit distribution Election of Board Members and determination of their terms of office Determination of Board Members’ attendance fees Election of Independent Auditor Discussion on granting permission to Board Members in accordance with TCC Art. 395 and 396 Discussion of the amendment of Article 6 “CAPITAL” of the Articles of Association Wishes, suggestions, and closing PROXY FORM (REPRESENTATION DOCUMENT) We hereby appoint …………. (ID No: ……………) or …………. (ID No: ……………) as our proxy to represent our shares in İstanbul Enerji Sanayi Ve Ticaret A.Ş. at the Ordinary General Assembly Meeting to be held on 09/04/2025 at 09:30 AM at the Istanbul Metropolitan Municipality Subsidiaries Coordination Directorate Meeting Hall, Osmaniye Mahallesi Koşuyolu Bulvarı No:1 Kat:5 34146 Bakırköy/ISTANBUL, and to vote on the agenda items. …./…./2025 GIVER OF PROXY Title : Capital Amount : ………-TL Number of Shares : ……… Units Address :

The 111th anniversary of electricity’s arrival in Istanbul was commemorated with a panel organized in collaboration with the Istanbul Branch of the Chamber of Electrical Engineers (EMO) and the Perpa Trade Center. This special event, which examined the historical journey of electricity in Istanbul in detail, also addressed energy transformation from the past to the present and discussed future energy policies. In his speech at the panel, our CEO Dr. Yüksel Yalçın highlighted the transformation processes in the energy infrastructure and emphasized the importance of sustainable energy policies. Addressing topics such as green transformation, energy management, and urban-scale energy security, Yalçın shared valuable insights on strategic steps needed in Istanbul’s energy infrastructure. The panel explored the arrival of electricity in Istanbul from both technical and historical perspectives, while providing comprehensive evaluations of changes in the energy sector and future trends. Critical topics such as reshaping cities through energy use, integrating renewable energy sources, and implementing energy efficiency policies were among the key issues discussed with participants. We extend our gratitude to EMO Istanbul Branch, Perpa Trade Center, and all participants for their contributions to this meaningful event. Inspired by Istanbul’s energy history, we continue our efforts to move confidently toward the city’s sustainable energy future.

Istanbul Energy continues to strengthen its collaborations with local governments, academic institutions, and industry representatives as part of its sustainable energy transition and environmentally friendly projects. In line with this, the initiatives carried out under the “Energy Investments, Management, and Training Activities Cooperation Protocol” signed with Altınbaş University two years ago are ongoing. To emphasize the continuity of this partnership, a joint visit was conducted to Altınbaş University in collaboration with the Çatalca Municipality. During the visit, Altınbaş University Board of Trustees Chairman Mr. İmam Altınbaş, Secretary General Mr. Selçuk Uysaler, Çatalca Mayor Mr. Erhan Güzel, and Istanbul Energy CEO Dr. Yüksel Yalçın came together. The meeting focused on energy efficiency, food security, agriculture, and livestock within the framework of a sustainable local governance approach. Mr. İmam Altınbaş shared his assessments regarding the university’s sectoral integration process and potential joint projects to be developed with local governments. The program concluded with a tour of the university campus. Istanbul Energy extends its gratitude to the Altınbaş University Board of Trustees for hosting this meaningful meeting, to the Çatalca Mayor for his contributions, and to all participants. Our corporate collaborations will continue resolutely to support Istanbul’s clean energy transition.

Within the scope of Energy Efficiency Week, the “Energy-Efficient Cities Symposium” was held with the participation of stakeholders from the energy sector. The symposium, organized with experts in the field, focused on solutions for energy efficiency and evaluated sustainable urban development approaches. Energy Efficiency Addressed in Two Sessions The first session, titled “Energy Efficiency in Transportation,” was moderated by Prof. Dr. Ayşen Erdinçler, Head of the Istanbul Metropolitan Municipality (IMM) Department of Environmental Protection and Control. Panelists included Dr. Özgür Soy, Head of IMM Subsidiaries Transportation Group; İETT General Manager İrfan Demet; Metro Istanbul General Manager Özhan Şenol; Şehir Hatları General Manager Güçlü Şeneler; and İSBAK Inc. General Manager Can Dağdelen. Discussions focused on energy efficiency in public transportation, smart transportation systems, and sustainable mobility models. The second session focused on “Energy Efficiency in Buildings.” Moderated by our CEO Dr. Yüksel Yalçın, the panel featured Muzaffer Başaran, Board Member of the Istanbul Chamber of Mechanical Engineers (TMMOB); Sinem Kolgu, President of the Istanbul Branch of the Chamber of Civil Engineers; and Erhan Karaçay, President of the Istanbul Branch of the Chamber of Electrical Engineers. The session provided comprehensive evaluations on energy management in buildings, green building practices, and promoting energy conservation on an urban scale. Participation of Academics and Industry Representatives The event brought together academics, private sector representatives, technical NGOs, and local government officials to share the latest developments in energy efficiency. Invited speakers included Prof. Dr. Filiz Karaosmanoğlu (ITU Faculty Member and President of SÜT-D), Assoc. Dr. Erhan Kurtarır (Yıldız Technical University), Erman Aydıngün (CEO of Bursa Energy Inc.), and Bilgin Akbal (Board Member, Country Policies Foundation). Cooperation Protocols Signed At the conclusion of the symposium, cooperation protocols were signed between the branches of the Chambers of Electrical, Civil, and Mechanical Engineers, along with a goodwill declaration for future projects. Under these protocols, joint efforts will be undertaken to develop and implement energy efficiency projects, bringing sustainable solutions to life. Istanbul Energy will continue its work toward creating sustainable and energy-efficient cities. Appreciation was extended to all stakeholders, panelists, and participants, while emphasizing the shared goal of contributing to Turkey’s clean energy transformation.