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Property, Plant and Equipment, Net
12 Months Ended
Mar. 31, 2021
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT, NET

NOTE 6 – PROPERTY, PLANT AND EQUIPMENT, NET


Property, plant and equipment consisted of the following as of March 31, 2021 and 2020:


   As of
March 31,
   As of
March 31,
 
   2021   2020 
Buildings  $12,813,510   $9,590,058 
Machinery   2,867,046    2,339,879 
Furniture, fixture and electronic equipment   231,929    163,819 
Vehicles   147,132    131,381 
Total property plant and equipment, at cost   16,059,617    12,225,137 
Less: accumulated depreciation   (5,545,586)   (4,328,636)
Property, plant and equipment, net  $10,514,031   $7,896,501 

As of March 31, 2021 and 2020, the Company pledged its building with a carrying value of approximately $5.1 million and $5.1 million, respectively, as the collateral for short-term bank loans (see Note 9).


Depreciation expense was $849,454, $674,247 and $682,462 for the years ended March 31, 2021, 2020 and 2019, respectively. Depreciation allocated as manufacturing overhead to inventories was $589,610, $555,636 and $568,017 for the years ended March 31, 2021, 2020 and 2019, respectively.