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ACCOUNTS RECEIVABLE
3 Months Ended
Mar. 31, 2019
Accounts Receivable, Net [Abstract]  
ACCOUNTS RECEIVABLE
.    ACCOUNTS RECEIVABLE
Accounts receivable comprised the following at March 31, 2019 and December 31, 2018:
 
March 31, 2019

 
December 31, 2018

Third-party customers
$
163,524

 
$
203,068

Less: allowance for bad debts and credit notes
(9,702
)
 
(9,697
)
Total accounts receivable
$
153,822

 
$
193,371