On the evening of May 13, at the Central Square of the Political - Administrative Center of the New Urban Area North of Cam River, the City Party Committee, People's Council, People's Committee, and Vietnam Fatherland Front Committee of the city solemnly held the Ceremony to celebrate the 70th anniversary of Hai Phong Liberation Day (May 13, 1955 - May 13, 2025), receive the title of "Heroic City" and open the Red Flamboyant Flower Festival - Hai Phong 2025 with the theme "Hai Phong - 70 years of faith and aspiration to rise up".

On the evening of May 11, at the square of the Political - Administrative Center of the North Cam River New Urban Area (Thuy Nguyen City), Hai Phong City People's Committee held a rehearsal for the 70th Anniversary of the Liberation of Hai Phong - Heroic City (May 13, 1955 - May 13, 2025) and the Art Program "Hai Phong - 70 years of faith and aspiration to rise up" to open the Red Flamboyant Festival - Hai Phong 2025.

On the afternoon of May 11, the City People's Committee solemnly organized a series of events and programs to celebrate the 70th Anniversary of the Liberation of Hai Phong - Heroic City. This is the city's key activity towards the 70th Anniversary of the Liberation of Hai Phong - Heroic City and the Red Flamboyant Festival - Hai Phong 2025.

On the evening of May 16, the People's Committee of An Duong District coordinated with the Department of Foreign Affairs of the city to organize a music exchange and art performance program between the Bujihwa Art Troupe (Korea) and An Duong District. The program is an activity to celebrate the 70th anniversary of the Liberation Day of Hai Phong - Heroic City and the Red Flamboyant Festival - Hai Phong 2025.

On the morning of May 13, Mr. Le Tien Chau, member of the Party Central Committee, Secretary of the City Party Committee, Head of the National Assembly Delegation of Hai Phong city, received Mr. He Wei, Ambassador Extraordinary and Plenipotentiary of the People's Republic of China to Vietnam. Also attending were Mr. Hoang Minh Cuong, Vice Chairman of the City People's Committee; Mr. Le Trung Kien, Head of the Hai Phong Economic Zone Management Board, and leaders of relevant departments, branches and units.

On the evening of May 12, at Hai Phong City Theater Square, the Ningbo City Art Troupe, Zhejiang (China), had an art performance program on the occasion of the Troupe's participation in the Red Flamboyant Festival - Hai Phong 2025.