Shon-ban-gyi, Mogok Valley, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar
This mining area is considered as an extension of the Shon-ban-lay mines and in the past has produced mostly rubies and fewer blue sapphires of all qualities, often exceeding 5 carats.In 2003 the mines were closed.
Ref: Ted Themelis (2008) Gems and Mines of Mogok, p. 211