Quarterly report pursuant to Section 13 or 15(d)

Concentrations (Tables)

v3.19.3
Concentrations (Tables)
9 Months Ended
Sep. 30, 2019
Risks and Uncertainties [Abstract]  
Schedule of customers
    Three Months Ended
September 30,
    Nine Months Ended
September 30,
 
Customer   2019     2018     2019     2018  
A (Beijing Daopei, a related party)     *       17 %     *       18 %
B (Hebei Daopei, a related party)     28 %     *       15 %     *  
C     21 %     19 %     23 %     20 %
D     14 %     13 %     15 %     13 %
E     11 %     10 %     12 %     11 %

 

* Less than 10%