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ACCOUNTS RECEIVABLE, NET (Tables)
12 Months Ended
Dec. 31, 2022
ACCOUNTS RECEIVABLE, NET  
Summary of accounts receivable

As of December 31, 

    

2021

    

2022

US$

US$

Accounts receivable

 

3,000,000

 

Allowance for doubtful accounts

 

 

 

3,000,000