Improve the quality of the medium and low voltage power grid in 2024-2025 for CC substations with electricity generation > 5,000kWh/month in Dong Son district, Thanh Hoa province; Improve the quality of the medium and low voltage power grid in 2024-2025 for CC substations with electricity generation > 5,000kWh/month in the eastern area of Hoang Hoa district, Thanh Hoa province; Improve the quality of the medium and low voltage power grid in 2024-2025 for CC substations with electricity generation > 5,000kWh/month in the western area of Hoang Hoa district, Thanh Hoa province; Improve the quality of the medium and low voltage power grid in 2024-2025 for CC substations with electricity generation > 5,000kWh/month in the northern area of Sam Son city, Thanh Hoa province