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1. BASIS OF PRESENTATION AND CONSOLIDATION (Tables)
3 Months Ended
Mar. 31, 2019
Accounting Policies [Abstract]  
Schedule of property plant and equipment useful life
   

Useful life

(in years)

Buildings (including salt pans)   8 - 20
Plant and machinery (including protective shells, transmission channels and ducts)   3 - 8
Motor vehicles   5
Furniture, fixtures and equipment   3-8
Schedule of earnings per share
    Three-Month Period Ended
March 31,
    2019   2018
Numerator        
Net loss   $ (4,904,138 )   $ (6,977,100 )
                 
Denominator                
Basic: Weighted-average common shares outstanding during the period     46,886,558       46,803,791  
Add: Dilutive effect of stock options           22,597  
Diluted     46,886,558       46,826,388  
                 
Net loss per share                
Basic   $ (0.10 )   $ (0.15 )
Diluted   $ (0.10 )   $ (0.15 )