Oyu Tolgoi achieves significant development milestone with completion of Shaft 5 sinking
VANCOUVER, BC--(Marketwired - March 20, 2018) - Turquoise Hill Resources (NYSE: TRQ) (NASDAQ: TRQ) (TSX: TRQ) today announced that Oyu Tolgoi has achieved a significant underground development milestone with the completed sinking of Shaft 5 at a final …