Contractor selection plan (project implementation phase) Package 5: Survey consulting for design preparation after the basic design step, technical design - estimate, construction drawing design, prepare BIM design, prepare bidding documents; Package 6: Consulting on technical design verification - estimates, construction drawing design; Package 7: Measuring and drawing plots; Package 8: Mine clearance. Project "New construction of Hoa Lac 220/110kV transformer station and 110/22kV level connection".