Playing against the in-form Ji-Hyun, Sindhu lost in a closely-fought three-game encounter, 15-21, 21-18, 15-21.
After building up a comfortable lead in the first game, Ji-Hyun managed to close out the first game at 21-15.
The second game was a tighter affair, with both players fighting tooth-and-nail for every point. Sindhu raced ahead of Ji-Hyun in the late stages of the game to win it 21-18.
In the third game, the South Korean started strongly and raced into an 11-6 lead early on. Despite some resistance from Sindhu, she closed out the game at 21-15 to book her place in the final of the tournament.