[6] 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.

At the Chinese Taipei, he and Kim Sa-rang beat the host partner Lee Sheng-mu and Tsai Chia-hsin in the straight set.

[12] At the end of the 2013 BWF Season, he qualified to compete at the Super Series Masters Finals in Kuala Lumpur, Malaysia.

The information and evidence presented at the January hearing was insufficient and ambiguous and there was no proof beyond reasonable doubt that the players were not at fault.

In April 2014, after reviewing its original decision, the BWF panel wiped out the players missed tests and filing failures and expunged their records.

[15][16] In 2015, he and Kim Sa-rang won the Korea Masters Grand Prix Gold tournament in the men's doubles event.

[17] They also won the China Open Super Series Premier tournament, after beat Chai Biao and Hong Wei in the straight games.

He and Kim Sa-rang beat the third seeded from China in the quarterfinal round, and the world No.1 pair, Lee Yong-dae and Yoo Yeon-seong in the semifinal.