Malaysia's challenge in Taipei will continue with four representatives in the quarter-finals.

Chen Tang Jie and Clarissa San were involved in a hard-fought three-game battle, taking the opening game 21-17 against Thailand's fourth seeds Ruttanapak Oupthong and Jhenicha Sudjaipraparat before going down 12-21, 16-21.

Low Han Chen-Chan Wen Tse also bowed out after falling to the home pair of Wu Guan Xun-Lee Chia Hsin 18-21, 17-21 in a 35-minute encounter.

World No. 50 Justin Hoh came from behind to defeat Indonesia's World No. 43 Prahdiska Bagas Shujiwo 14-21, 21-11, 21-14, booking his place in the quarter-finals.

Lee Zii Jia was unable to progress further after suffering a narrow defeat to Chinese Taipei's second seed Lin Chun-Yi, falling short in the deciding game (20-22, 21-11, 18-21). 

Fifth seeds Aaron Chia-Aaron Tai kept the men's doubles challenge alive after producing a convincing straight-sets win over home favourites Lai Po Yu-Tsai Fu Cheng (21-16, 21-13).

Low Zi Yu-Noraqilah Maisarah Ramdan pulled off another major upset in their career after overcoming the third seeds of the Taiwanese pair, Hsu Yin Hui-Lin Jhih Yun (20-22, 21-13, 21-11).

Eogene Ewe's campaign came to an end after a closely contested defeat to Chinese Taipei's Chou Tien Chen, the reigning China Open champion, despite pushing the second game to the limit (17-21, 20-22).

First seeds Pearly Tan-M. Thinaah advanced after overcoming a tough challenge from home pair Yan Fei Chen-Liang Ching Sun in three games (11-21, 21-12, 21-15).