The Elections Department (ELD) said on Wednesday that more than 6,500 Singaporeans who are expatriates have registered as overseas voters for the 2019 Presidential Election. Former GIC Chief Investment Officer Ng Kok Song, former Senior Minister Tharman Shanmugaratnam, and former NTUC Income Chief Executive Tan Kin Lian are among the contenders vying to become Singapore’s ninth president. The candidates’ names …