Come July, the developer behind the mega mixed-use project Marina One will find out whether its strategy four years ago of holding back half its 1,042 residential units from the market has paid off. M+S Pte Ltd, the joint-venture firm by Malaysia's Khazanah Nasional and Singapore's Temasek Holdings, will release 30 per cent of its 521-unit Garden Tower for sale, with the rest expected to be released in...