 NAPLES, Fla.--BUSINESS WIRE--Pentwater Capital Management LP Pentwater, the largest minority shareholder of Turquoise Hill Resources Ltd. Turquoise Hill or the Company TSX:TRQ NYSE:TRQ, believes that the Boards of Rio Tinto and Turquoise Hill have breached their fiduciary obligations. To quote Canaccord Genuity in a note published yesterday morning: Goodbye, good governance we hardly knew ye! Mr. Quellmann was the first CEO in our long history with TRQ Turquoise Hill that we 