Gói thầu số 3: Thi công sửa chữa lớn các hạng mục kiến trúc năm 2026 Wait, I need to actually translate it. Correct output: Package No. 3: Major Repair and Construction of Architectural Items in 2026

Items: (1) Major repair of the production operations building of the Kỳ Lừa Integrated Management Team, Xứ Lạng Power Company; (2) Major repair of the production operations building of Hữu Lũng Power Company; (3) Major repair of the guest house of Lạng Sơn Power Company; (4) Major repair of the production operations building of Văn Quan Power Company; (5) Major repair of the production operations building and the substation buildings of 110kV Đồng Mỏ and 110kV Lạng Sơn, under the Lạng Sơn High-Voltage Grid Enterprise.