World No.16 Wang, runner-up to Chou Tien Chen in 2017, lost to his 23-year-old 78th-ranked countryman 21-13 19-21 21-10 in a battle that lasted 59 minutes.
Lin, already an HSBC BWF World Tour Super 300 event winner at US Open 2019, will now meet Singapore Open 2022 silver medallist Kodai Naraoka in the semifinals. The Japanese defeated Thailand’s Khosit Phetpradab 15-21 21-14 21-14 to advance.
Hong Kong China’s Ng Tsz Yau will contest two semifinals. She and mixed doubles partner Lee Chun Hei Reginald beat home pair Ye Hong Wei/Lee Chia Hsin 12-21 21-13 21-18 in the first Court 3 match. Ng later returned with Tsang Hiu Yan to win their women’s doubles quarterfinal 21-16 20-22 21-18 against Indians Tanisha Crasto/Shruti Mishra.