Proposed additions & alterations works to Singapore Expo Exhibition Hall 1 to Hall 6 on Lot 09355P & 09356T MK27; Exhibition Hall 7 to Hall 10 on Lot 10851V PT, 98328L, 07361C, 10187K PT, 07360L PT MK27 at Expo Drive / Upper Changi Road East / Changi South Avenue 1, Singapore