Despite a mid-round recovery, Ko was overtaken by Yani Tseng, finishing at 14 under to Shin's 18 under and Tseng's 16 under. World No1 Tseng, of Taiwan, is the two-time defending champion of the Honda LGPA Thailand.
Ko's coach Guy Wilson said today that his charge was not affected by the slow playing of Shin. The Korean was warned by officials after her methodical approach to every shot put the pair behind schedule.
"That wasn't to blame at all," he said.
Wilson said Ko was looking forward to playing in Thailand and then returning to New Zealand for the Queenstown tournament.
"It's a fun week for her. Her score isn't competing; she is down there as more of a celebrity."
Wilson said Ko was unaware of the attention she was receiving around the world. In the United States, the Golf Channel changed its schedule to broadcast the final round live.
"She doesn't really know too much about it back here in New Zealand. She will obviously be aware of what's on her Facebook and Twitter accounts and stuff like that but she doesn't really know the full picture. It's huge, there are so many people out there watching her."