COTECCONS ACHIEVES INFORMATION DISCLOSURE STANDARDS FOR tylebongda keo nha cai SIXTH CONSECUTIVE YEAR

On July 6, 2026, Coteccons was once again recognized as a company meeting tylebongda keo nha cai 2026 Information Disclosure Standards under tylebongda keo nha cai IR Awards, marking tylebongda keo nha cai sixth consecutive year that tylebongda keo nha cai Company has fully complied with tylebongda keo nha cai stringent information disclosure requirements of Vietnam’s stock market. This achievement reaffirms Coteccons’ steadfast commitment to maintaining high standards of corporate governance, strengthening Investor Relations (IR), and building long-term trust with shareholders, business partners, and tylebongda keo nha cai investment community.

tylebongda keo nha cai IR Awards, organized annually since 2011 by Vietstock, in collaboration with tylebongda keo nha cai Vietnam Association of Financial Executives (VAFE) and FiLi – Finance and Life e-Magazine, honor listed companies that meet tylebongda keo nha cai market’s information disclosure standards. tylebongda keo nha cai evaluation is conducted through a comprehensive and objective survey based on prevailing legal regulations on information disclosure, while also serving as tylebongda keo nha cai foundation for identifying companies with outstanding Investor Relations (IR) practices.

tylebongda keo nha cai 2026 IR Awards Survey assessed 685 listed companies on tylebongda keo nha cai HOSE and HNX exchanges during tylebongda keo nha cai period from May 1, 2025, to April 30, 2026. tylebongda keo nha cai results showed that only 459 companies, representing 67% of tylebongda keo nha cai total, fully satisfied tylebongda keo nha cai evaluation criteria and were recognized as meeting tylebongda keo nha cai 2026 Information Disclosure Standards. This year’s survey applied more stringent requirements, particularly regarding bilingual information disclosure under Circular No. 68/2024/TT-BTC, which amends and supplements several provisions of Circular No. 96/2020/TT-BTC, reflecting tylebongda keo nha cai Vietnamese capital market’s continuous efforts to enhance transparency standards.

Maintaining this recognition for six consecutive years demonstrates Coteccons’ consistent commitment to building a transparent governance system, ensuring regulatory compliance, and fulfilling its accountability to shareholders, investors, and other stakeholders.

Beyond providing complete, accurate, and timely disclosures in accordance with regulatory requirements, Coteccons continues to enhance tylebongda keo nha cai quality of its Investor Relations (IR) activities in line with international governance best practices. In 2026, tylebongda keo nha cai Company successfully hosted Shareholders’ Day 2026, where tylebongda keo nha cai Executive Leadership Team directly updated shareholders and investors on business performance, shared tylebongda keo nha cai Company’s long-term strategic direction, and engaged in open discussions on corporate strategy, governance, and tylebongda keo nha cai outlook for Vietnam’s construction industry.

tylebongda keo nha cai Coteccons Executive Leadership Team engages directly with shareholders and investors during Shareholders’ Day 2026

In parallel, Coteccons partnered with SSI Securities Corporation (SSI) and Ho Chi Minh City Securities Corporation (HSC) to organize two Investor Site Tours at tylebongda keo nha cai Metropole MP14 project in Ho Chi Minh City and tylebongda keo nha cai Pearl Theatre project in Hanoi. By visiting construction sites firsthand and observing quality management, safety practices, risk management, ESG implementation, and project execution while interacting directly with project management teams, investors gained valuable insights into Coteccons’ execution capabilities and governance system in practice. These initiatives represent one of tylebongda keo nha cai Company’s key efforts to promote transparency, strengthen investor engagement, and build long-term confidence within tylebongda keo nha cai investment community.

Investors visit tylebongda keo nha cai Metropole MP14 project during tylebongda keo nha cai Investor Site Tour organized by Coteccons in partnership with SSI

Investor Site Tour at tylebongda keo nha cai Pearl Theatre project organized by Coteccons in partnership with HSC

For Coteccons, transparency extends beyond regulatory compliance. It is demonstrated through proactive dialogue, open communication, and creating opportunities for investors to gain direct access to tylebongda keo nha cai Company’s operations. This philosophy has become a fundamental pillar of Coteccons’ corporate governance framework and sustainable development strategy.

As capital markets increasingly emphasize transparency, corporate governance, and sustainable development, Coteccons will continue enhancing tylebongda keo nha cai quality of its information disclosure, further strengthening its Investor Relations activities in line with international best practices, and maintaining open and constructive dialogue with tylebongda keo nha cai investment community. By placing transparency at tylebongda keo nha cai core of its development strategy, Coteccons aims not only to build lasting trust with shareholders but also to contribute to raising corporate governance standards and promoting tylebongda keo nha cai sustainable development of Vietnam’s capital market.

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On May 25, 2026, Coteccons, in collaboration with SSI Securities Corporation, organized a Site Tour program for investment funds at tylebongda keo nha cai Metropole MP14 project — one of tylebongda keo nha cai key developments where Coteccons serves as tylebongda keo nha cai main contractor. tylebongda keo nha cai program aimed to provide investors with a more practical perspective on Coteccons’ project execution capabilities, development orientation, and operational activities as tylebongda keo nha cai construction industry enters a new growth cycle. During tylebongda keo nha cai program, representatives of Coteccons shared insights with investors regarding tylebongda keo nha cai context and outlook of Vietnam’s construction industry, tylebongda keo nha cai Company’s 9M/FY2026 business performance, management and operational capabilities, quality control systems, and supply chain management for large-scale projects. Coteccons representatives stated that tylebongda keo nha cai Company is currently maintaining a healthy backlog, supported by a diversified portfolio of projects across multiple segments, including high-end residential, industrial, infrastructure, and internationally-oriented developments. At tylebongda keo nha cai same time, Coteccons continues to focus on enhancing governance capabilities, developing its engineering workforce, and optimizing its ecosystem to ensure high-quality project execution during tylebongda keo nha cai next phase of growth. During tylebongda keo nha cai discussion session with investors, various topics related to long-term development strategies, risk management, and construction industry trends were openly discussed. Regarding tylebongda keo nha cai expansion of foundation construction capabilities, Coteccons shared that its investment in this area stems from tylebongda keo nha cai need to strengthen geotechnical engineering capabilities and optimize construction solutions for different soil conditions across Vietnam. This also represents a strategic direction to broaden tylebongda keo nha cai Company’s specialized expertise within its construction ecosystem. In terms of raw material price volatility management, Coteccons stated that

Hanoi, May 22, 2026 – At tylebongda keo nha cai Closing Ceremony of tylebongda keo nha cai 5th Nhan Dan Newspaper Innovation Day – 2026, Coteccons Construction Joint Stock Company (HOSE: CTD) was honored with an Encouragement Award for tylebongda keo nha cai initiative “Innovation in tylebongda keo nha cai ‘Xây Tết’ and ‘Chuyến tàu hạnh phúc’ (Happiness Train) programs”, while also receiving tylebongda keo nha cai “Outstanding Companion Partner” award in recognition of its meaningful contributions in collaborating with Nhan Dan Newspaper to implement community initiatives with strong humanistic values. tylebongda keo nha cai awards acknowledge Coteccons’ efforts in promoting innovation associated with social responsibility and sustainable development. Representatives of partner organizations, enterprises, and Nhan Dan Newspaper staff pose for a commemorative photo at tylebongda keo nha cai 5th Nhan Dan Newspaper Innovation Day – 2026 Ms. Dinh Thi Ngoc Bich – ESG Subcommittee Member, representing Coteccons, together with other organizations receiving tylebongda keo nha cai Encouragement Award for tylebongda keo nha cai initiative “Innovation in tylebongda keo nha cai ‘Xây Tết’ and ‘Chuyến tàu hạnh phúc’ programs”Mr. Le Quoc Minh, Member of CPV Central Committee, Party Committee Secretary, Editor-in-Chief of Nhan Dan Newspaper, Deputy Head of tylebongda keo nha cai Publicity and Education Commission and tylebongda keo nha cai Commission for Mass Mobilization under tylebongda keo nha cai CPV Central Committee, and President of tylebongda keo nha cai Vietnam Journalists Association, presents tylebongda keo nha cai “Outstanding Companion Partner” award to Coteccons and other organizations at tylebongda keo nha cai event Nhan Dan Newspaper Innovation Day is an annual event organized since 2022 to review innovation initiatives across tylebongda keo nha cai organization while honoring projects and ideas with high practical value. Over tylebongda keo nha cai years, tylebongda keo nha cai program has increasingly affirmed its role as a platform connecting creative ideas

Ho Chi Minh City, May 12, 2026 – Coteccons Construction Joint Stock Company (HoSE: CTD) hereby provides an update on tylebongda keo nha cai ownership of tylebongda keo nha cai Korea Investment Management (KIM) group, which currently holds a 4.13% stake in tylebongda keo nha cai Company, based on tylebongda keo nha cai latest disclosed transaction reports in accordance with regulatory requirements. This marks tylebongda keo nha cai eighth ownership update since KIM became a major shareholder of Coteccons in June 2024, including four increases and four decreases in its ownership ratio. Over tylebongda keo nha cai years, Coteccons has received strong support from both domestic and international institutional investors throughout its restructuring journey, as well as in enhancing operational efficiency and strengthening corporate governance. tylebongda keo nha cai Company remains on track to achieve its 2026 business plan, recording positive year-on-year growth in both revenue and profit, with approximately 80% of its annual revenue target and 92% of its profit after tax target already fulfilled. At tylebongda keo nha cai same time, Coteccons continues to receive favorable assessments from reputable financial institutions and securities firms, and has been consistently included in tylebongda keo nha cai Vietnam Sustainability Index (VNSI) by HoSE for multiple consecutive years. About Coteccons Coteccons is a Vietnam’s leading construction company, with more than two decades of experience in delivering large-scale and complex projects. With its aspiration to become an Industry Leader, Coteccons aims to lead not only through business performance but also by elevating industry standards and promoting sustainable development. tylebongda keo nha cai Company is committed to creating safer, more comfortable, and more meaningful living and working spaces, thereby contributing positively to tylebongda keo nha cai

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