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FINANCIAL INFORMATION OF PARENT COMPANY - PARENT COMPANY CONDENSED STATEMENTS OF CASH FLOWS (Details) ¥ in Thousands, $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2018 CNY (¥) | Dec. 31, 2025 CNY (¥) | Dec. 31, 2025 USD ($) | Dec. 31, 2024 CNY (¥) | Dec. 31, 2023 CNY (¥)
Cash flows from operating activities: |  |  |  |  |
Net income (loss) |  | ¥ (408,916) | $ (58,474) | ¥ (73,642) | ¥ 12,576
Adjustments for: |  |  |  |  |
Changes in fair value on other investments |  | 300 | 40 | 7,160 | (3,490)
Impairment on equity investments | ¥ 1,300 | 41,629 | 6,000 | 0 | 0
Impairment on other investments |  | 64,960 | 9,289 |  |
Non-cash interest expense on convertible notes |  | 16,252 | 2,324 | 30,289 | 25,967
Gain on extinguishment of convertible notes |  | (1,203) | (172) |  |
Foreign currency exchange (gain) loss |  | (2,989) | (427) | 713 | 6,816
Gain on disposal of other investment |  | (3,400) | (486) |  |
Changes in operating assets and liabilities: |  |  |  |  |
Change in prepayments and other current assets |  | 2,016 | 288 | (3,020) | 673
Change in accrued expenses and other current liabilities |  | 8,366 | 1,196 | 1,690 | (21,213)
Increase/(Decrease) in interest payable |  |  |  | 1,243 | (2,432)
Net cash used in operating activities |  | (31,756) | (4,540) | (44,197) | (46,320)
Cash flows from investing activities: |  |  |  |  |
Proceeds from disposal of other investment |  | 3,400 | 486 | 5 | 5,163
Net cash provided by (used in) investing activities |  | 1,115 | 159 | (57,018) | 4,470
Cash flows from financing activities: |  |  |  |  |
Proceeds from the issuance of convertible note |  | 78,358 | 11,205 |  | 85,349
Proceeds from issuance of ordinary shares |  | 31,504 | 4,505 | 17,783 |
Net cash provided by financing activities |  | 78,468 | 11,221 | 69,768 | 32,465
Effect of foreign exchange rate changes on cash and cash equivalents |  | (249) | (36) | (2,864) | (3,457)
Net change in cash and cash equivalents |  | 47,578 | 6,804 | (34,311) | (12,842)
Cash and cash equivalents, beginning of year |  | 10,911 | 1,560 | 45,222 | 58,064
Cash and cash equivalents, end of year |  | 58,489 | 8,364 | 10,911 | 45,222
Non-cash investing and financing activities: |  |  |  |  |
Conversion of convertible notes into ordinary shares |  | 53,388 | 7,634 | 18,161 | 24,822
Restricted ordinary shares issued in exchange for investments |  |  |  | 230,478 |
Issuance of shares for acquisition of noncontrolling interest |  | 15,000 | 2,145 |  |
Non-cash unwind of investments and related share arrangements |  | 3,877 | 554 |  |
Cancellation of contingently redeemable shares |  | 15,613 | 2,233 |  |
Receipt of BTC from investors |  | 33,937 | 4,853 |  |
Receipt of USDT from investors |  | 4,263 | 610 |  |
Parent Company |  |  |  |  |
Cash flows from operating activities: |  |  |  |  |
Net income (loss) |  | (402,446) | (57,549) | (73,424) | 20,003
Adjustments for: |  |  |  |  |
Share-based compensation expense |  | 116,053 | 16,595 | 44,675 | 70,760
Impairment on advances and other assets |  | 1,278 | 183 |  |
Changes in fair value on other investments |  | 278 | 40 | 0 | 0
Impairment on equity investments |  | 32,130 | 4,595 | 0 | 0
Impairment on other investments |  | 48,646 | 6,956 |  |
Non-cash interest expense on convertible notes |  | 16,252 | 2,324 | 30,289 | 25,967
Gain on extinguishment of convertible notes |  | (1,203) | (172) |  |
Foreign currency exchange (gain) loss |  | 394 | 56 | 148 | (785)
Equity in loss (income) of subsidiaries and VIE |  | (52,428) | (7,499) | 10,173 | (117,204)
Gain (loss) from change in fair value of conversion feature derivative, option assets and liabilities |  | 5,733 | 820 | (45,037) | (23,171)
Gain on disposal of other investment |  | (3,400) | (486) |  |
Changes in operating assets and liabilities: |  |  |  |  |
Change in prepayments and other current assets |  | (52) | (7) | (1,278) | 0
Change in amounts due from intercompany |  | 239,311 | 34,221 | 36,461 | (15,563)
Change in accrued expenses and other current liabilities |  | (535) | (76) | 1,686 | (11,952)
Increase/(Decrease) in interest payable |  | 0 | 0 | 1,243 | (2,432)
Net cash used in operating activities |  | 11 | 1 | 4,936 | (54,377)
Cash flows from financing activities: |  |  |  |  |
Proceeds from the issuance of convertible note |  |  |  |  | 85,349
Proceeds from disposal of other investment |  |  |  | 5 | 5,163
Repayments of convertible notes and interest-free loan |  | 0 | 0 | (34,390) | (42,903)
Proceeds from issuance of ordinary shares |  |  |  | 17,783 |
Net cash provided by financing activities |  | 0 | 0 | (16,602) | 47,609
Effect of foreign exchange rate changes on cash and cash equivalents |  | 0 | 0 | (298) | 502
Net change in cash and cash equivalents |  | 11 | 1 | (11,964) | (6,266)
Cash and cash equivalents, beginning of year |  | 474 | 68 | 12,438 | 18,704
Cash and cash equivalents, end of year |  | 485 | 69 | 474 | 12,438
Non-cash investing and financing activities: |  |  |  |  |
Conversion of convertible notes into ordinary shares |  | 53,388 | 7,634 | 18,161 | ¥ 24,822
Restricted ordinary shares issued in exchange for investments |  |  |  | 230,478 |
Put option liability |  | 1,811 | 259 | ¥ (1,923) |
Issuance of shares for acquisition of noncontrolling interest |  | 15,000 | 2,145 |  |
Non-cash unwind of investments and related share arrangements |  | 3,877 | 554 |  |
Cancellation of contingently redeemable shares |  | 15,613 | 2,233 |  |
Receipt of BTC from investors |  | 33,937 | 4,853 |  |
Receipt of USDT from investors |  | 4,263 | 610 |  |
Proceeds from issuance of ordinary shares |  | 31,504 | 4,505 |  |
Proceeds from convertible notes |  | ¥ 78,358 | $ 11,205 |  |

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