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PROPERTY, PLANT AND EQUIPMENT (Tables)
12 Months Ended
May 31, 2022
Property, Plant and Equipment [Abstract]  
SCHEDULE OF PROPERTY, PLANT AND EQUIPMENT

A summary of the property, plant and equipment for Greystone is as follows, as of May 31:

 

   2022   2021 
Production machinery and equipment  $57,341,906   $52,292,733 
Plant buildings and land   7,020,543    6,970,949 
Leasehold improvements   1,487,398    1,487,398 
Furniture and fixtures   542,057    550,337 
Total property, plant and equipment   66,391,904    61,301,417 
Less: Accumulated depreciation   (34,515,139)   (30,302,429)
           
Property, Plant and Equipment, net  $31,876,765   $30,998,988