CONCENTRATION OF CREDIT RISK (Tables)
 3 Months Ended
Jun. 30, 2018
Accounts Receivable  
Concentration of credit risk and major customers  
Schedule of concentration of risk by factors
 
 
June 30, 2018
 
 
March 31, 2018
 
Customer
 
Amount
 
 
Percent
 
 
Amount
 
 
Percent
 
A
 
$
334,801
 
 
 
47
%
 
 
*
 
 
 
*
%
B
 
$
105,794
 
 
 
15
%
 
$
432,084
 
 
 
30
%
C
 
$
99,990
 
 
 
14
%
 
$
394,454
 
 
 
27
%
D
 
$
*
 
 
 
*
%
 
 
263,098
 
 
 
18
%
E
 
$
98,509
 
 
 
14
%
 
 
*
 
 
 
*
%
 
  
*less than 10% of total