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INTERIM CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS ¥ in Thousands, $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2020 CNY (¥) | Sep. 30, 2020 USD ($) | Sep. 30, 2019 CNY (¥)
Cash flows from operating activities: |  |  |
Net loss | ¥ (1,305,418) | $ (192,267) | ¥ (398,570)
Depreciation and amortization | 11,320 | 1,667 | 7,328
Share-based compensation | 26,901 | 3,962 | 5,498
Fair value changes of short-term investments | (3,292) | (485) | (800)
Provision for allowance for doubtful accounts | 9,794 | 1,443 | 22
Reversal of inventory allowance | (3,162) | (466) |
Loss on disposal of property and equipment | 3 |  | 173
Unrealized exchange (gain)/loss | 3,843 | 566 | (4,179)
Changes in operating assets and liabilities, net of acquisition: |  |  |
Accounts receivable | (143,224) | (21,095) | (84,933)
Inventories | (15,551) | (2,290) | (28,983)
Prepayment and other current assets | (79,712) | (11,740) | (61,022)
Amounts due from NetEase Group | 9,202 | 1,355 | (3,721)
Operating lease right-of-use assets | 6,742 | 993 | 565
Other assets | (2,150) | (317) | 660
Contract liabilities | 608,758 | 89,660 | 166,080
Accounts payables | 56,500 | 8,322 | 12,954
Payroll payable | 2,501 | 368 | (25,482)
Taxes payable | 9,517 | 1,402 | 5,460
Accrued liabilities and other payables | 392,093 | 57,749 | 72,186
Amounts due to NetEase Group | (12,070) | (1,778) | (3,204)
Long-term lease liabilities | (22,259) | (3,278) | (2,902)
Other non-current liabilities | (1,123) | (165) |
Net cash used in operating activities | (450,800) | (66,394) | (342,870)
Cash flows from investing activities: |  |  |
Purchases of short-term investments | (578,000) | (85,130) | (62,000)
Proceeds of maturities of short-term investments | 465,000 | 68,487 | 106,882
Placements of time deposits | (20,663) | (3,043) | (251,734)
Proceeds from maturities of time deposits | 510,239 | 75,150 | 498,292
Cash paid for business combination, net of cash acquired (Note 4) | (6,398) | (942) |
Purchase of intangible assets |  |  | (29)
Purchases of property and equipment | (20,947) | (3,085) | (13,694)
Proceeds from disposal of property and equipment | 192 | 28 | 1,667
Payment for equity investment | (8,500) | (1,252) |
Net cash provided by investing activities | 340,923 | 50,213 | 279,384
Cash flows from financing activities: |  |  |
Funding from NetEase Group |  |  | 75,643
Payment of offering expenses | (7,909) | (1,165) | (811)
Proceeds from issuance of ordinary shares pursuant to incentive plans | 27,043 | 3,983 |
Net cash provided by financing activities | 19,134 | 2,818 | 74,832
Effect of exchange rate changes on cash and cash equivalents | (4,623) | (681) | 1,805
Net increase/(decrease) in cash and cash equivalents | (95,353) | (14,044) | 13,151
Cash and cash equivalents at beginning of the period | 173,328 | 25,528 | 41,738
Cash and cash equivalents at end of the period | 77,975 | 11,484 | 54,889
Supplemental disclosures of cash flow information: |  |  |
Cash paid for income tax expenses | 5,550 | 817 | 3,057
Cash paid for interest expenses | 27,298 | 4,021 | 26,205
Non-cash investing and financing activities: |  |  |
Accretions of convertible redeemable preferred shares to redemption value |  |  | ¥ 32,209
Changes in accrued liabilities and other payables related to property and equipment addition | ¥ 6,614 | $ 974 |

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