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3. Inventories
3 Months Ended
Mar. 31, 2015
Inventory Disclosure [Abstract]  
Inventories

Inventories at March 31, 2015, and December 31, 2014, consisted primarily of finished antimony products, antimony metal, antimony ore, and finished zeolite products that are stated at the lower of first-in, first-out cost or estimated net realizable value. Finished antimony products, antimony metal and finished zeolite products costs include raw materials, direct labor and processing facility overhead costs and freight. Inventory at March 31, 2015 and December 31, 2014, is as follows:

 

   

March 31, 

2015

   

December 31,

 2014

 
Antimony Metal   $ 86,032     $ 40,352  
Antimony Oxide     704,315       718,982  
Antimony Concentrates     938,133       33,545  
Antimony Ore     486,242       447,262  
     Total antimony     2,214,722       1,240,141  
Zeolite     92,442       193,398  
    $ 2,307,164     $ 1,433,539  

 

During the first quarter of 2015 the Company discovered it had been overcharged for raw material purchases from a vendor.  The Company brought the matter to the vendor’s attention and received a $927,018 credit to accounts payable due the vendor that has been recorded as gain on liability adjustment at March 31, 2015.