Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q. In compliance with those instructions, certain information and footnote disclosures normally included in consolidated financial statements prepared in accordance with generally accepted accounting principles in the United States (“US GAAP”) have been condensed or omitted. This report should be read in conjunction with Thompson Creek Metals Company Inc.'s (“TCM,” “Company,” “we,” “us” or “our”) consolidated financial statements and notes contained in its Annual Report on Form 10-K for the year ended December 31, 2012 (the “2012 Form 10-K”) filed with the Securities and Exchange Commission (“SEC”). The information furnished herein reflects all adjustments which are, in the opinion of management, necessary for a fair statement of the results for the interim periods reported. Operating results for the three and nine months ended September 30, 2013 are not necessarily indicative of the results that may be expected for the year ending December 31, 2013.

The preparation of financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. TCM bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances. Accordingly, actual results may differ significantly from these estimates under different assumptions or conditions.

Certain prior year amounts in the financial statements have been reclassified to conform to the current year presentation. Start-up costs of $0.2 million and $5.3 million for the three and nine months ended September 30, 2012, respectively, related to the mill expansion at Endako Mine were reclassified from operating expenses to start-up costs in the Consolidated Statements of Operations and Comprehensive Income (Loss) to disclose clearly the expenses related to ramping up to full production capacity. Restricted cash changes and Capital lease payments were reclassified from operating activities to investing activities in the Consolidated Statements of Cash Flows. Cash flow information for the three and nine months ended September 30, 2012 and the year ended December 31, 2012 have been represented for these adjustments. The following tables present the impact of the changes.



(in millions)	As Previously Reported			As Revised
Three months ended September 30, 2012 (unaudited)
Cash generated by (used in) operating activities	$	(18.8	)	$	3.3
Cash (used in) investing activities	(186.3		)	(212.2		)
Effect of exchange rate changes on cash	(1.0		)	2.8



(in millions)	As Previously Reported			As Revised
Nine months ended September 30, 2012 (unaudited)
Cash (used in) operating activities	$	(36.1	)	$	(14.0	)
Cash (used in) investing activities	(544.4		)	(570.3		)
Effect of exchange rate changes on cash	(1.7		)	2.1



(in millions)	As Previously Reported			As Revised
Year ended December 31, 2012
Cash (used in) operating activities	$	(82.8	)	$	(28.2	)
Cash (used in) investing activities	(762.7		)	(811.9		)
Cash generated by financing activities	1,077.3			1,071.8
Effect of exchange rate changes on cash	0.5			0.6

The condensed consolidated financial statements include the accounts of TCM and its subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation. Financial amounts are presented in United States (“US”) dollars unless otherwise stated. References to C$ are Canadian dollars.