World number five Ryu will bring her major-winning talents to Mission Hills Haikou for the first time.
"I have fond memories of playing and winning in China but I've never visited Mission Hills so I'm really looking forward to competing at this world-famous venue,” said Ryu, the 2011 US Women’s Open champion.
"Mission Hills and their partners are putting together a fantastic field for the World Ladies Championship and I'm especially relishing the chance to go up against the world’s best players."
Ryu’s astonishing victory in the US Women’s Open rocketed her to stardom at the age of 21. Playing in just her third LPGA Tour event, she defeated compatriot Hee Kyung Seo in a play-off. She went on to claim her second LPGA Tour victory in 2012 at the Jamie Farr Toledo Classic.
Feng and Ryu will join a stellar line-up that already includes world number one Inbee Park and number two Suzann Pettersen, the defending champion.