Taiwanese President Tsai Ing-wen speaks at a Democratic Progressive Party (DPP) meeting in Taipei, Taiwan May 25, 2016. REUTERS/Tyrone Siu

Taiwanese President Tsai Ing-wen speaks at a Democratic Progressive Party (DPP) meeting in Taipei, Taiwan May 25, 2016. REUTERS/Tyrone Siu

Taiwanese President Tsai Ing-wen speaks at a Democratic Progressive Party (DPP) meeting in Taipei, Taiwan May 25, 2016. REUTERS/Tyrone Siu

June 4, 2016 3:14 AM (UTC+8)