Repair of partial damage to road surface at section Km75 + 600 - Km76; compensation for subsidence of road head culverts Km78 + 650; Km86 + 070; Km86 + 800; Km87 + 400; Km88 + 00; Km88 + 550; Km89 + 00, National Highway 21B, Ha Nam Province, Nam Dinh Province
Repair of bridges: Lo Bat Km140 + 170, Khe Lanh Km144 + 620, Khuon Luong Km145 + 430; repairing and completing the system of signs, painting and marking the road section Km139-Km172 + 800, Highway 37, Thai Nguyen province