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-93152a@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/

COTECCONS CLIMBS RANKINGS IN THE TOP 50 VIETNAM THE BEST AND TOP 500 LARGEST ENTERPRISES IN VIETNAM

09/01/2026

Hanoi, January 8, 2026 – Coteccons Construction Joint Stock Company (HOSE: CTD) continues to affirm its leading position in Vietnam’s construction industry as it is simultaneously honored in the “Top 50 Vietnam the Best” and the “Top 500 Largest Enterprises in Vietnam” (VNR500), organized by Vietnam Report and VietnamNet, at Ho Guom Opera. Ms. Dinh Thi Hong Tham, Corporate Affairs Director, representing Coteccons, received the award Specifically, in the “Top 50 Vietnam the Best” ranking, Coteccons is placed 22nd out of 50, climbing nine positions compared to 2024. At the same time, in the VNR500 ranking, Coteccons advances to 69th place, improving nine ranks year-on-year, demonstrating clear progress in scale, operational efficiency, and execution capability amid ongoing challenges in the construction market. Beyond recognizing the rankings of outstanding enterprises, both prestigious lists are highly regarded by the business community for their transparency, objectivity, and internationally benchmarked evaluation methodologies. In particular, the “Top 50 Vietnam the Best” ranking is jointly organized by Vietnam Report, VietnamNet, and leading media partners to honor 50 enterprises with outstanding revenue performance while maintaining stable and sustainable business efficiency during the 2024–2025 period. Meanwhile, the VNR500 ranking, developed following the Fortune 500 model, is based on independent research and evaluation conducted by Vietnam Report in accordance with international standards. The ranking has been published annually since 2007 with advisory support from domestic and international experts, notably Professor John Quelch, former Senior Associate Dean of Harvard Business School. As Vietnam enters a new phase of development, marked by increasingly pressing demands for institutional reform, enhanced competitiveness, and a stronger role for the private sector in line with the Politburo’s breakthrough resolutions, Coteccons’ continued rise and recognition in prestigious

January 9, 2026

“Xây Tết 2026”: Safety Is the Happiness of More Than 30,000 Workers and Their Families

31/12/2025

Hanoi – Nhan Dan Newspaper, in coordination with Coteccons Construction Joint Stock Company (CTD), officially launched the “Xây Tết 2026” program under the theme “Thank You to the Guardians of Happiness”. The program highlights the message that workers’ happiness is built upon 365 days of safe working practices. Safety as Culture, Right, and Responsibility Speaking at the ceremony, Ms. Nguyen Trinh Thuy Trang, Deputy CEO of Coteccons, emphasized that at Coteccons, the principle “If it is not safe, stop work” is not merely a slogan but a core operating rule. Safety engineers are empowered to halt construction to protect workers, and workers themselves are encouraged to refuse tasks that pose potential risks. This mindset transforms safety from a regulation into a voluntary daily practice. Ms. Nguyen Trinh Thuy Trang, Deputy CEO of Coteccons, delivers her remarks at the ceremony In the opening documentary of the event, a Coteccons safety engineer shared a perspective often perceived as that of a “villain” on construction sites—someone who constantly reminds and enforces compliance. Yet, this strictness helps workers build awareness and refuse to work at unsafe, poorly protected sites. The story reflects a reality in which safety has become a defining cultural value across Coteccons’ projects. Why Safety? The construction industry is among those with the highest rates of occupational accidents. Therefore, Coteccons selected “safety” as the central theme of “Xây Tết 2026″ to reaffirm that economic development must go hand in hand with human protection. As a contractor involved in numerous national

December 31, 2025

Coteccons Joins Media Agencies, City Authorities and Businesses to Launch “Xây Tết 2026” in Ho Chi Minh City

30/12/2025

Ho Chi Minh City – Nhan Dan Newspaper, the Ho Chi Minh City Press Center, and Coteccons Construction Joint Stock Company have signed a Memorandum of Understanding, officially expanding the “Xây Tết 2026” program in Ho Chi Minh City. The program aims to care for 8,000 workers in the city, including construction workers, environmental sanitation workers, and urban drainage workers. Representatives of Nhan Dan Newspaper, the City Press Center, Coteccons, Ho Chi Minh City departments, enterprises, and charitable organizations jointly performed the ceremony marking their commitment to organizing “Xây Tết 2026” for 8,000 workers within and beyond the construction sector in Ho Chi Minh City “Xây Tết”: A Year-Round Journey of Companionship According to Mr. Nguyen Van Khanh, Deputy Director of the Ho Chi Minh City Press Center, Xây Tết is a large-scale social welfare initiative aligned with the city’s orientation toward comprehensive care for workers’ well-being during the Lunar New Year. Mr. Nguyen Van Khanh, Deputy Director of the City Press Center, delivers remarks at the ceremony “The program not only brings a more fulfilling Tet to workers, but also spreads humane values, a culture of occupational safety, and self-protection awareness within the community”, Mr. Khanh emphasized. The Ho Chi Minh City Press Center will act as the coordinating and communication hub, working closely with Nhan Dan Newspaper, Coteccons, and relevant stakeholders to ensure the program is implemented effectively, in line with its objectives, and generates positive social impact. Highly appreciating the “Xây Tết” program, Mr. Le Nam

December 30, 2025