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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Operating activities |  |
Net income for the year | $ 10,537 | $ 25,254
Items not affecting cash: |  |
Depletion and depreciation and financing amortization | 30,723 | 28,489
Mineral, royalty and other interests impairments | 9,104 | 2,507
Deferred income tax expense | 3,209 | 4,225
Share-based payments | 3,785 | 3,106
(Gain) on revaluation of investments | (5,827) | (22,093)
Unrealized foreign exchange gain | (2,122) |
Interest on loan receivable | (409) | (1,528)
(Gain) loss on mineral interest disposal and other | (5,024) | 655
Changes in non-cash working capital | 797 | (1,624)
Cash flow from (used in) operating activities | 44,773 | 38,991
Investing activities |  |
Acquisition of Mariana Resources Limited | (48,299) |
Proceeds from disposal of investments and other | 14,352 | 12,774
Proceeds from disposal of mineral, royalty and other interests | 3,600 | 5,617
Acquisition of mineral, royalty and other interests | (4,409) | (10,806)
Investment in Hot Maden interest | (584) |
Acquisition of investments and other assets | (4,761) | (5,731)
Loan repayment |  | 2,993
Loan issuance |  | (1,000)
Cash flow from (used in) investing activities | (40,101) | 3,847
Financing activities |  |
Redemption of common shares (normal course issuer bid) | (17,729) | (2,280)
Bank debt drawn | 16,000 | 5,000
Bank debt repaid | (16,000) | (88,500)
Proceeds on exercise of warrants, options and other | 2,605 | 5,455
Proceeds from issuance of common shares net of financing costs |  | 53,453
Cash flow from (used in) financing activities | (15,124) | (26,872)
Effect of exchange rate changes on cash and cash equivalents | 1,557 | 122
Net increase (decrease) in cash and cash equivalents | (8,895) | 16,088
Cash and cash equivalents, beginning of year | 21,434 | 5,346
Cash and cash equivalents, end of year | $ 12,539 | $ 21,434

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