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Inventory (Tables)
12 Months Ended
May 31, 2018
Inventory Disclosure [Abstract]  
Schedule of Inventory

Inventory consists of the following as of May 31:

 

    2018     2017  
Raw materials   $ 864,339     $ 669,083  
Finished pallets     2,224,928       918,469  
                 
Total Inventory   $ 3,089,267     $ 1,587,552