Soniia, who is currently world ranked 32, won in straight sets 21-15, 21-12.

However the 26-year-old is set to face tough competition in the last eight against tournament top seed and world No 4 Chen Yu Fei of China, who defeated Kim Ga-eun of South Korea 21-10, 21-16.

Soniia has lost all of her four meetings to Chen.

Also advancing into the quarterfinals was national men’s singles player Lee Zii Jia who beat Tommy Sugiarto 21-14, 12-21, 21-8.

He faces Shesar Hiren Rhustavito of Indonesia, who caused a major upset by knocking out five-time world champion Lin Dan of China 12-21, 21-15, 21-10.

Professional men’s doubles pair Goh V Shem-Tan Wee Kiong also marched into the quarterfinals by defeating world No 6 pairing Han Cheng Kai-Zhou Hao Dong of China 19-21, 21-16, 21-18.

Goh-Tan will be facing another Chinese pair, Li Jun Hui-Liu Yu Chen who defeated Lu Ching Yao-Yang Po Han of Taiwan 21-17, 11-21, 21-11.

Two national men’s doubles pair crashed out of the tournament.

Ong Yew Sin-Teo Ee Yi failed to ride on their momentum losing 21-8, 21-17 to South Koreans Ko Sung Hyun-Shin Baek Cheol.

Ong-Teo, ranked 22nd, upset ‘The Daddies’, Mohamad Ahsan-Hendra Setiawan of Indonesia 18-21, 21-16, 23-21 in the first round yesterday.

The other national pair, Aaron Chia-Soh Wooi Yik were also shown the door after going down 22-20, 21-17 to China’s Huang Kai Xiang and Liu Cheng.