Quarterly report pursuant to Section 13 or 15(d)

Concentrations (Tables)

v3.19.2
Concentrations (Tables)
6 Months Ended
Jun. 30, 2019
Risks and Uncertainties [Abstract]  
Schedule of customers
    Three Months Ended
June 30,
    Six Months Ended
June 30,
 
Customer   2019     2018     2019     2018  
A (Beijing Daopei, a related party)     14.0 %     29 %     8.2 %     18 %
B (Hebei Daopei, a related party)     13.9 %     16 %     8.1 %     20 %
C     20.2 %     11 %     23.8 %     13 %
D     13.5 %     *       15.9 %     11 %

 

* Less than 10%