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Allowance for doubtful accounts
12 Months Ended
Mar. 31, 2019
Accounting Policies [Abstract]  
Allowance for doubtful accounts
2Allowance for doubtful accounts

 

Allowance for doubtful accounts amounted to $nil as of March 31, 2019 (2018: $nil). Most of the Company’s trade receivables are generally unsecured.