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Income (Loss) Per Share
 3 Months Ended
Mar. 31, 2021
Earnings Per Share [Abstract]  
Income (Loss) Per Share
18.Income (Loss) Per Share

The following is the calculation of income (loss) per share:


   Three months ended
March 31,		 
   2020   2021 
Net (loss) income  $(2,354,111)  $29,608,168 
Less: Net loss (income) attributable to non-controlling interests   (5,870)   1,114 
Net (loss) income attributable to shareholders of CBAK Energy Technology, Inc.  $(2,359,981)  $29,609,282 
           
Weighted average shares outstanding – basis (note)   53,293,776    84,283,605 
Dilutive unvested restricted stock and warrants   -    650,308 
Weighted average shares outstanding - diluted   53,293,776    84,933,913 
           
Income (loss) per share of common stock          
Basic  $(0.04)  $0.35 
Diluted  $(0.04)  $0.35 

Note: Including 299,332 and 288,498 vested restricted shares granted pursuant to the 2015 Plan that were not yet issued for the three months ended March 31, 2020 and 2021, respectively.


For the three months ended March 31, 2020, 1,154,002 unvested restricted shares were anti-dilutive and excluded from shares used in the diluted computation.


For the three months ended March 31, 2021, 11,621,967 shares purchasable under warrants were excluded from EPS calculation, as their effects were anti-dilutive.