Quarterly report pursuant to Section 13 or 15(d)

Concentrations (Tables)

v3.20.2
Concentrations (Tables)
6 Months Ended
Jun. 30, 2020
Risks and Uncertainties [Abstract]  
Schedule of customers
    Three Months Ended
June 30,
    Six Months Ended
June 30,
 
Customer   2020     2019     2020     2019  
A (Beijing Daopei, a related party)     *       14 %     *       *  
B (Hebei Daopei, a related party)     *       14 %     *       *  
C     28 %     20 %     29 %     24 %
D     17 %     14 %     17 %     16 %
E     14 %     *       14 %     *  

 

* Less than 10%