Electrical, Mechanical Ventilation, Audio Video (AV), ELV, Fire Protection and Architectural Lighting for Proposed Demolition and Redevelopment Of the Existing Singapore Chancery Comprising One 6-Storey Office Block With a Single Storey Podium, A 2 Storey Residential, Annex (Total 4 Nos of 3 BR Apartments) and One Single Storey Basement Carpark At 209 Jalan Tun Razak, Lot 287, Seksyen 63, KL (Singapore Embassy)