South Korea's Mirim Lee won her first major title at Mission Hills after a three-way play-off.
The 29-year-old beat American Nelly Korda and Canada's Brooke Henderson with a birdie on the first extra hole.
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It was Lee's fourth LPGA title, but her first since 2017. Her previous best finish at a major came at the 2016 British Open when she tied for second.
Elsewhere, Amy Boulden of Wales clinched the first Ladies European Tour title at the Swiss Ladies Open. Boulden's eight-under-par final round of 64 saw her finish three shots clear of Australia's Stephanie Kyriacou.