Turquoise Hill Resources Ltd. Loss Submission Form

(i) the progress of underground development of Oyu Tolgoi was not proceeding as planned; (ii) there were significant undisclosed underground stability issues that called into question the design of the mine, the projected cost and timing of production; (iii) the company’s publicly disclosed estimates of the cost, date of completion and dates for production from the underground mine were not achievable; (iv) the development capital required for the underground development of Oyu Tolgoi would cost substantially more than a billion dollars over what the company had represented; and (v) Turquoise Hill would require additional financing and/or equity to complete the project.