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v3.20.2

Restricted cash, non-current | 6 Months Ended
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Jun. 30, 2020
Restricted cash, non-current |
Restricted cash, non-current | 4.Restricted cash, non-current The Group’s restricted cash balance is $510 and $510 as of December 31, 2019 and June 30, 2020, respectively. It was mainly long-term bank deposits held as collateral for issuance of letters of credit. These deposits will be released when the related letters of credit are settled by the Group.

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