Koo Kien Keat
In 2012, he and Kim Gi-jung won their first Superseries title at the Japan Open tournament. In the final round they beat the Malaysian pair Koo Kien Keat and Tan Boon Heong. At the 2012 Badminton Asia Championships in Qingdao, China, they won a gold medal after defeat Hiroyuki Endo and Kenichi Hayakawa of Japan in the final round. In September 2012, they also won the men's doubles title at the Indonesian Masters tournament.