ANNOUNCEMENT ON THE ORGANIZATION OF THE 2023 ANNUAL GENERAL MEETING OF SHAREHOLDERS

April 4, 2023

THE 19TH ANNUAL GENERAL MEETING OF SHAREHOLDERS, 2023

Time: Tuesday, April 25, 2023, | 8:00AM (GMT+7)

VIRTUAL MEETING

We are providing any shareholders as of March 28, 2023, the means to join the 19th Annual General Meeting of Shareholders (2023 AGM) virtually at https://ctd.bvote.vn/. The virtual meeting will feature the livestream, plus the option to submit votes (the platform will be open at 8:00AM from April 21, 2023 for voting) and write comments/questions in the Q&A session. To join the virtual meeting, shareholder will need to login to the platform using your unique personal account (*) which can be found in the Invitation that was sent to you on April 4, 2023.

Please click HERE for the virtual meeting guide.

(*) Note: All Usernames and Passwords are personal to the individual to which it is issued. Shareholders are responsible for maintaining the confidentiality of the username and password issued and ensuring that each username and password is only used by the individual authorized. Coteccons is not responsible for the case that Shareholders disclose the above information.

LIMITED IN-PERSON EVENT

In addition to the virtual meeting, we expect to accommodate a limited number of shareholders in-person at the 2023 AGM due to capacity restrictions. The physical event will be held at:

Coteccons Head Office
236/6 Dien Bien Phu, Ward 17, Binh Thanh District
Ho Chi Minh City, Vietnam

Shareholders who wish to attend physically must complete their registration no later than 5:00PM on April 21, 2023. Click HERE to register.

In order to submit votes and ask questions in the Q&A session, physical shareholders will still need to login to https://ctd.bvote.vn/. Further instructions for attending physically will be updated in a few days.

CONTACT INFO

For any question or comments relating to the 2023 AGM, please contact:

IR Team, Coteccons Construction Joint Stock Company
Email: nv.snoccetocobfsctd-296b42@ri
Tel: +84 28 3514 2255

* IMPORTANT NOTES:

Shareholders, who are unable to attend the 2023 AGM or wish to employ an Attorney-in-Fact (it could be anyone who is authorized to act on Shareholder’s behalf or the Chairman of Shareholder’s company) regardless of whether they attend virtually or in-person, are requested to prepare two (02) copies of “Power of Attorney” using this form (download HERE) and submit a copy of it to Coteccons Construction Joint Stock Company (IR Team) at 236/6 Dien Bien Phu, Ward 17, Binh Thanh District, HCMC, Vietnam or online at https://ctd.bvote.vn/ no later than 5:00PM on April 18, 2023. The Attorney-in-Fact will receive a confirmation e-mail with their personal login account.
All documents of the 2023 AGM have been uploaded to Coteccons website at: https://www.coteccons.vn/en/investor/tai-lieu-hop-dai-hoi-dong-co-dong-thuong-nien-2023/

Shareholders’ Day 2026: From Rapid Growth to Quality Growth

16/06/2026

Revenue is expected to rise 30%, while profit is projected to grow by at least 50%, exceeding the company’s targets of VND30 trillion in revenue and VND700 billion in net profit. Yet according to Coteccons Chairman Bolat Duisenov, the most notable point is not the financial figures themselves, but the company’s strongest confidence since the pandemic in its strategy, planning and execution capabilities. On the afternoon of June 15 in Hanoi, Coteccons Construction Joint Stock Company (HOSE: CTD) hosted Shareholders’ Day 2026, attended by Chairman Bolat Duisenov, Deputy CEOs Tran Ngoc Hai and Nguyen Chi Thien, and Nguyen Thi Thanh Huong, Human Capital Director of Coteccons. “This Is the Shareholders’ Day That Has Made Me the Most Optimistic” In his opening remarks, Chairman Bolat Duisenov said that in fiscal year 2026, revenue is expected to increase by around 30% year-on-year, surpassing the target and maintaining an average revenue growth rate of about 25% annually since the pandemic. Profit is expected to rise by at least 50% from the previous year, despite this year’s fairly ambitious target of VND700 billion in after-tax profit. Chairman Bolat emphasized that Coteccons continues to maintain positive cash flow, a clear testament to the company’s solid financial foundation. He noted that the figures shared today are not yet final results, but representing data Coteccons is confident enough to share with shareholders at this point. He also expressed his gratitude to all Coteccons employees, the ecosystem of subcontractors and suppliers, and all customers who have trusted

June 16, 2026

COTECCONS HOSTS NORTHERN VIETNAM SITE TOUR FOR INVESTORS, DEMONSTRATING ITS CAPABILITY TO DELIVER WORLD-CLASS PROJECTS

13/06/2026

On June 12, 2026, Coteccons, in collaboration with HSC, organized an exclusive Site Tour for investors at the Pearl Theatre project, designed by Pritzker Prize-winning architect Renzo Piano. The project is one of Coteccons’ flagship developments, where the Company serves as the main contractor. The Site Tour forms part of Coteccons’ ongoing efforts to enhance transparency and strengthen engagement with the investment community by providing first-hand insights into the Company’s project execution capabilities, construction standards, and operational management system. From Contractor to Comprehensive Solution Provider for Complex Projects Through on-site visits and presentations delivered by the Project Management Team, investors gained a deeper understanding of how Coteccons approaches highly demanding projects, where design, engineering, and construction must be seamlessly integrated. A key highlight of the project is Coteccons’ implementation of the fast-track delivery model, under which design development and construction are carried out simultaneously. By working closely with the project owner from the early design stage, Coteccons helps optimize technical solutions while progressively establishing itself as a comprehensive solution provider that accompanies clients throughout the entire project lifecycle. The Pearl Theatre has a total gross floor area of approximately 40,980 square meters and features a striking cast-in-place reinforced concrete shell roof inspired by the rippling waves of West Lake. The roof shell varies in thickness from 200 to 700 millimeters. At its thinnest point, when compared proportionally to an eggshell, it is even thinner than the shell of an egg. Its reflective ceramic finish creates a distinctive “pearl” effect

June 13, 2026

COTECCONS NAMED AMONG VIETNAM’S TOP 50 CORPORATE SUSTAINABILITY AWARDS (TOP50 CSA 2026) FOR THE FOURTH CONSECUTIVE YEAR, REINFORCING EXCELLENCE IN GOVERNANCE AND SUSTAINABLE HUMAN CAPITAL STRATEGY

12/06/2026

Ho Chi Minh City, June 11, 2026 – Coteccons Construction Joint Stock Company (HOSE: CTD) has once again been honored among Vietnam’s Top 50 Corporate Sustainability Awards (Top50 CSA) 2026, organized by Nhip Cau Dau Tu Magazine. The year 2026 marks the fifth edition of the award program and the fourth consecutive year that Coteccons has been recognized in this prestigious ranking, maintaining its strong track record across all three Environmental, Social, and Governance (ESG) pillars. Ms. Dinh Thi Hong Tham, Corporate Affairs Director, representing Coteccons, received the award This year, Coteccons was recognized in two key categories: S – Human Capital Strategy for Sustainable Development G – Excellence in Corporate Governance Being acknowledged simultaneously in these two categories reflects a clear evolution in the company’s ESG approach—from strategic commitment to practical execution aligned with international standards, with a strong focus on the two most critical foundations of sustainable development: people and governance. With its multi-layered assessment framework, Top 50 CSA not only recognizes outcomes but also evaluates how effectively enterprises integrate ESG principles into their strategies and operations. As ESG increasingly becomes a market standard, this recognition highlights Coteccons’ capability to transform ESG commitments into sustainable value for communities, long-term benefits for the business, and positive impacts across its ecosystem. Staying the Course on ESG: From Commitment to Execution Through People and Governance In an industry facing ongoing workforce challenges and increasingly stringent operational standards, Coteccons has chosen a foundational approach: transforming both people and systems rather than

June 12, 2026