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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Income Taxes (Details)
12 Months Ended
Dec. 31, 2023
CNY (¥)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Income Tax Expense [Abstract]      
Interest or penalties associated with tax position   $ 0 $ 0
Unrecognized tax positions   $ 0 $ 0
Australian Taxation Office [Member]      
Income Tax Expense [Abstract]      
Period of tax assessment years from investigation 4 years    
Germany [Member]      
Income Tax Expense [Abstract]      
Period of tax assessment years for issue or correction from investigation 4 years    
Hong Kong [Member]      
Income Tax Expense [Abstract]      
Period of prior tax assessment years from investigation 6 years    
Extended period of prior tax assessment years from investigation 10 years    
PRC [Member]      
Income Tax Expense [Abstract]      
Statute of limitations related to income tax examinations 3 years    
Statute of limitations related to income tax examinations, under special circumstance 5 years    
Statute of limitations related to income tax examinations, underpayment of taxes | ¥ ¥ 100,000    
Statute of limitations related to income tax examinations, transfer pricing issues 10 years    
U.S. Federal [Member]      
Income Tax Expense [Abstract]      
Open tax examination years 2015 2016 2017 2018 2019 2020 2021 2022 2023