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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS ¥ in Thousands, $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2021 USD ($) | Jun. 30, 2021 CNY (¥) | Jun. 30, 2020 CNY (¥)
Cash flows from operating activities |  |  |
Net cash used in operating activities | $ (2,997) | ¥ (19,339) | ¥ (61,989)
Cash flows from investing activities |  |  |
Purchase of available-for-sale investments | (10,532) | (68,000) | (86,000)
Proceeds from available-for-sale investments | 15,565 | 100,500 | 65,000
Purchase of held-to-maturity investments | (18,741) | (121,000) | (25,000)
Maturity and proceeds from held-to-maturity investments | 25,400 | 164,000 | 41,000
Purchase of property and equipment | (153) | (990) | (2,213)
Prepayment for leasehold improvement | (674) | (4,353) | (15)
Purchase of intangible assets | (47) | (306) |
Purchase of subsidiary, net of cash acquired |  |  | 37,622
Purchase of other non-current assets |  |  | (2,883)
Cash balances at disposed subsidiaries | (2) | (12) | (9)
Loan to third party |  |  | (19,900)
Net cash provided by investing activities | 10,816 | 69,839 | 7,602
Cash flows from financing activities |  |  |
Proceeds from long-term borrowing |  |  | 10,409
Net cash provided by financing activities |  |  | 10,409
Effects of exchange rate changes on cash, cash equivalents and restricted cash | (11) | (71) | (1,007)
Net change in cash, cash equivalents and restricted cash | 7,808 | 50,429 | (44,985)
Cash, cash equivalents and restricted cash at beginning of periods | 18,534 | 119,645 | 157,600
Cash, cash equivalents and restricted cash at end of periods | 26,342 | 170,074 | 112,615
Supplemental disclosure of cash flow information |  |  |
Income tax paid | (193) | (1,249) | (106)
Interest paid | (34) | (220) |
Supplemental disclosure of non-cash investing and financing activities: |  |  |
Derecognition of assets other than cash of disposed subsidiaries/deregistered subsidiaries | 161 | 1,041 | 217
Derecognition of liabilities of disposed subsidiaries/deregistered subsidiaries, net of recognized amount due to the disposed subsidiaries/deregistered subsidiaries | 368 | 2,378 | 9,328
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities | $ 2,041 | ¥ 13,175 | ¥ 98,845

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- Definition Amount of increase (decrease) from effect of exchange rate changes on cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; held in foreign currencies. Excludes amounts for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 230 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=98513438&loc=d3e33268-110906 + Details
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- Definition The cash outflow associated with the purchase of noncontrolling interest during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 + Details
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