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SCHEDULE I FINANCIAL INFORMATION FOR PARENT COMPANY - BALANCE SHEETS (Parenthetical) (Details) - $ / shares | Dec. 31, 2020 | Dec. 31, 2019
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BALANCE SHEETS |  |
Ordinary shares, par value (in dollars per share) | $ 0.0001 | $ 0.0001
Ordinary shares, shares authorized | 8,023,485,450 | 8,023,485,450
Ordinary shares, shares issued | 324,364,444 | 299,424,485
Ordinary shares, shares outstanding | 310,842,568 | 285,902,609
Treasury shares, shares | 3,096,764 | 3,096,764
Parent Company |  |
BALANCE SHEETS |  |
Ordinary shares, par value (in dollars per share) | $ 0.0001 | $ 0.0001
Ordinary shares, shares authorized | 8,023,485,450 | 8,023,485,450
Ordinary shares, shares issued | 324,364,444 | 299,424,485
Ordinary shares, shares outstanding | 310,842,568 | 285,902,609
Treasury shares, shares | 3,096,764 | 3,096,764

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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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