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3. Inventories
 9 Months Ended
Sep. 30, 2016
Notes to Financial Statements  
Inventories
Inventories consist of :  

September 30,

2016  

    

    December 31,

2015

  
Materials   $ 1,166,501     $ 477,929  
Work in process     162,539       ––  
Finished goods     2,900,030       2,306,681  
Total   $ 4,229,070     $ 2,784,610  

 

Finished goods includes consigned inventory held by our customers of $402,963 at September 30, 2016 and $119,100 at December 31, 2015. The Company reviews inventory for obsolete and slow moving products each quarter and makes provisions based on its estimate of the probability that the material will not be consumed or that it will be sold below cost. The provision for inventory reserves was negligible in both the first nine months of 2016 and 2015.