Project name: Investment in renovation and upgrading of National Highway 21, section Son Tay - Hoa Lac - Xuan Mai.

Location: Tung Thien Ward; Doai Phuong, Hoa Lac, Yen Xuan, Phu Cat, and Xuan Mai Communes.

Investment Objective: Improve the traffic capacity of a key national road; leverage the efficiency of projects such as Thang Long Avenue, National Highway 32 (QL32), and National Highway 2C (2C).

Proposed Implementation Schedule:  2026 - 2030 .

Estimated Total Investment: 26,087 billion VND

Investment form: PPP (BT, BOT or BOT combined with State Budget).

Investor Selection Method: Open bidding.

Project Proposal Lead: Investor.