Attending the event were Hoang Quoc Khanh, Secretary of the provincial Party Committee; Nguyen Dinh Viet, Deputy Secretary of the provincial Party Committee, Chairman of the provincial People's Committee and head of the provincial Delegation to the National Assembly; Nguyen Thai Hung, member of the provincial Party Committee’s Standing Board and Chairman of the provincial People's Council.

To Hieu Garden was built on an area of ​​4,200 sq.m, with a total investment of more than 16 billion VND (613,144 USD). It is named after To Hieu to commemorate the loyal communist soldier who devoted his whole life to the Party's revolutionary cause and “sowed the seeds” of revolution in Son La, while educating the younger generations about revolutionary traditions. The project is an architectural highlight, a green space and a place for community activities in Son La city.

This is one of the projects to welcome the Party congresses at all levels for the 2025-2030 term and to celebrate 64 years of building and developing Son La city. It also marks the transition from the three-tier to the two-tier local administration model. This new model will officially come into operation from July 1, 2025.