
Sze Fei-Izzuddin, who appeared sluggish throughout the match, lost 21-19, 7-21, 16-21 in 44 minutes.
It was the first victory for world No 8 pair Wei Chong-Kai Wun against their compatriots in three encounters.
In the semi-finals tomorrow, they will meet Japan’s Hoki Takuro-Yugo Kobayashi who shocked world No 4 pair Liang Wei Keng-Wang Chang from China 21-10, 21-13 in a match that lasted just 28 minutes.
The 20th ranked Hoki-Yugo and Wei Chong-Kai Wun have met only once so far with the Japanese pair winning in 2022.
At the Malaysia Masters last year, Wei Chong-Kai Wun lost to Wei Keng-Wang Chang 17-21, 21-16, 17-21 in the quarter-final.