On the morning of December 25, 2025, Da Nang Rubber Joint Stock Company (DRC) solemnly held the 50th Anniversary Ceremony of its Establishment, marking half a century of formation, innovation, and development (December 25, 1975 – December 25, 2025). Attendees of the Ceremony Representatives of Da Nang City authorities: Mr. Ho Ky Minh – Member of the Standing Committee of the City Party Committee, Standing Vice Chairman of the Da Nang People’s Committee Representatives of city departments, agencies, and authorities, including the Management Board of Da Nang Hi-Tech Park and Industrial Zones Representatives of Hai Van Ward People’s Committee Representatives of Vietnam National Chemical Group (VINACHEM): Mr. Phung Quang Hiep – Member of the Party Executive Committee of the Government, Secretary of the Party Committee, Chairman of the Members’ Council of VINACHEM Mr. Nguyen Huy Thong – Member of the Standing Committee of the Party Committee, Chairman of the Vietnam Chemical Industry Trade Union Leaders of functional departments of the Group Other distinguished guests: Former leaders and ex-leaders of DRC across different periods Representatives of units within the VINACHEM ecosystem Domestic and international partners, distributors, and suppliers Journalists from central and local media agencies Representatives of DRC: Mr. Nguyen Xuan Bac – Chairman of the Board of Directors Mr. Le Hoang Khanh Nhut – Party Secretary, Member of the Board of Directors, General Director Members of the Board of Directors, Executive Board, Supervisory Board, Trade Union Executive Committee, Youth Union, along with leaders of departments and factories throughout the Company Highlights of the Ceremony At the ceremony, DRC was honored to receive the Congratulatory Flag from the Da Nang People’s Committee, recognizing its 50 years of construction and development (1975–2025), along with a congratulatory banner from Vietnam National Chemical Group. Within the program framework, delegates visited the Radial Tire Manufacturing Plant, directly witnessing the remarkable transformation of factories, machinery, and equipment—vivid evidence of DRC’s continuous innovation journey over the past half-century. Significance of 50 Years of Formation and Development Fifty years is not merely measured by time, but forged through the dedication, intellect, and resilience of generations of leaders and employees. From this solid foundation, DRC proudly affirms: Its position as a leading tire manufacturer in Vietnam and the region Its active contribution to the growth and strength of Vietnam National Chemical Group Its identity as a Da Nang-based brand closely linked to the city’s development journey Gratitude and Recognition of Contributions On this significant occasion, DRC expressed its gratitude and presented commemorative medals to 29 employees who have dedicated over 37 years of service, as well as to outstanding domestic and international distributors who have accompanied and contributed to shaping DRC as it is today. Century Aspiration – The Next Journey Entering a new chapter with a Century Aspiration, DRC continues to: Preserve and promote its cultural values Foster solidarity and innovation Move forward with confidence, writing the next 50-year journey stronger and more resilient Strive toward the sustainable development of the enterprise and the prosperity of the nation Memorable moments from the event:

Spreading green inspiration, strengthening unity toward DRC’s 50-year milestone Continuing the series of meaningful activities celebrating the 50th anniversary of Da Nang Rubber Joint Stock Company (December 25, 1975 – December 25, 2025), the Green Corner DRC program launched by the DRC Trade Union has become an opportunity for all employees and workers to join hands in decorating and building green spaces that strongly reflect the identity and spirit of DRC. Each Green Corner – A Collective Signature Each green corner is carefully nurtured not only with plants and colors, but also with love for DRC, a strong sense of teamwork, and the unique imprint of each unit. From walkways to every small corner of the shared DRC workplace, the spreading greenery has created a fresher working environment, helping to inspire productivity and generate positive energy every day. Nurturing Corporate Culture Toward Sustainable Development The Green Corner DRC 2025 program not only enhances the landscape, but also nurtures corporate cultural values, awakens a sense of belonging, strengthens internal connections, and adds motivation for the DRC collective to maintain enthusiasm and dedication at work. This also serves as an important spiritual foundation for DRC to be ready for breakthroughs in 2026 and beyond, moving toward the goal of sustainable development, harmonizing production and business efficiency with a green, friendly working environment. Memorable moments from the event:

In the vibrant spirit of celebrating the 50th Anniversary of Danang Rubber Joint Stock Company (25/12/1975 - 25/12/2025), the DRC Science & Technology Football Tournament 2025 officially kicked off on the afternoon of November 28. The tournament is organized by the Company’s Trade Union in coordination with the Technical Division Trade Union, bringing together six teams from various departments and units: the Indirect Departments Team; the Mechanical-Energy & Retread Factory Team; the Mixing Factory; the Bicycle & Motorcycle Tire Factory; the Radial Tire Factory and the Automotive Tube & Tire Factory. More than just a sporting event, the tournament serves as a dynamic playground for employees to improve their health, ignite team spirit, and strengthen unity - fueling the motivation for all 2,000 DRC employees to close 2025 with pride and step into 2026 with renewed energy and determination.