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CONSOLIDATED STATEMENTS OF CASH FLOWS - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Cash flows from operating activities |  |  |
Cash generated from operations | ₩ 81,735 | ₩ 37,220 | ₩ 42,571
Interest received | 1,122 | 1,605 | 680
Interest paid | (186) | (277) |
Income taxes paid | (12,815) | (12,177) | (7,279)
Net cash inflow from operating activities | 69,856 | 26,371 | 35,972
Cash flows from investing activities |  |  |
Decrease(Increase) in short‑term financial instruments | (31,500) | (30,000) | 13,000
Decrease(Increase) in other non-current financial assets | (856) | (274) |
Decrease(Increase) in other current assets |  |  | 3
Proceeds from disposal of property and equipment | 3 | 71 | 69
Proceeds from disposal of intangible assets |  | 20 |
Purchase of property and equipment | (1,071) | (983) | (1,141)
Purchase of intangible assets | (2,625) | (1,360) | (1,108)
Net cash inflow(outflow) in investing activities | (36,049) | (32,526) | 10,823
Cash flows from financing activities |  |  |
Proceeds from capital contribution from non-controlling interests | 362 | 359 |
Repayment of lease liabilities | (2,893) | (2,034) | (197)
Payment of share issuance cost | (16) | (11) |
Net cash outflow in financing activities | (2,547) | (1,686) | (197)
Effect of exchange rate changes on cash and cash equivalents | (56) | 1,218 | 358
Net increase (decrease) in cash and cash equivalents | 31,204 | (6,623) | 46,956
Cash and cash equivalents at beginning of the year | 79,428 | 86,051 | 39,095
Cash and cash equivalents at end of the year | ₩ 110,632 | ₩ 79,428 | ₩ 86,051

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