Waratthaya competed in the Miss Universe Thailand 2012 pageant , held on June 2 , 2012 at Siam Pavalai Royal Grand Theatra , Paragon Cineplex in Bangkok , Thailand , where she placed first-runner up to Farida Waller , gaining the right to represent her country at Miss Earth 2012
Miss Universe Thailand 2012
Miss Universe Thailand 2012
Waratthaya Wongchayaporn