She will face Ukraine's Anhelina Kalinina, who posted a 7-5, 6-1 victory over Russian qualifier Vera Zvonareva.
Hana Bank Korea OpenBelgium's Yanina Wickmayer seized a 6-3, 7-6 (6) victory over third-seeded Ekaterina Alexandrova of Russia to move on to the quarterfinals in Seoul.
Wickmayer will meet Russian Polina Kudermetova, who breezed to a 6-3, 6-1 win over Kathinka von Deichmann of Liechenstein.
Fifth-seeded Anna Blinkova of Russia coasted to a 6-1, 6-3 win over Australian Priscilla Hon to advance to the third round.
Third-seeded Elise Mertens of Belgium had little difficulty in her 6-1, 6-4 victory over Australian qualifier Daria Saville.
Persons:
China's, Zheng, China's Zhu Lin REUTERS, Kim Kyung, Zheng Qinwen, Maria Sakkari, Sakkari, Kalinina, Vera Zvonareva, Italy's Jasmine Paolini, Caroline Garcia of, Ukraine's, Tsurenko, Donna Vekic, Wickmayer, Ekaterina Alexandrova, Kudermetova, Kathinka von Deichmann, Claire Liu, Arantxa Rus, China's Yuan Yue, Slovenia's Kaja Juvan, Beatriz Haddad Maia, Anna Blinkova, Russia coasted, Priscilla Hon, Elise Mertens, Daria Saville
Organizations:
Tennis Centre, Russian, Caroline Garcia of France, Hana Bank, Hong, Belarus, Thomson
Locations:
Hangzhou, China, Greece, Zhengzhou, Croatia, Hana Bank Korea, Russia, Seoul, Wickmayer, Arantxa, Netherland, Hong Kong, Brazil, Belgium