Lee Yong-dae and Jung Jae-sung prevailed over compatriots, Jin Yong-hoon and Kim Dae-sun, in an easy 21-13 and 21-9 win. The former world number one will face another Koreans, Kim Ki-jun and Shin Baek-cheol in the semi-final. Shin Baek-cheol is Lee Yong-dae's former partner when Jung was in the army.
Shin Baek-cheol and Kim Ki-jun shocked sixth-seeded Guo Zhendong/Xu Chen of China 12-21, 22-20, and 21-19 in the second round.
Meanwhile, Ko Sung-hyun and Yoo Yeon-seong subjugated Japanese Hirokatsu Hashimoto and Noriyasu Hirata 21-15 and 21-13. They will take on Chai Biao and Zhang Nan of China.