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SEGMENT INFORMATION
 12 Months Ended
Dec. 31, 2016
SEGMENT INFORMATION [Abstract]  
SEGMENT INFORMATION
19. SEGMENT INFORMATION
 
The Group’s chief operating decision maker has been identified as the chief executive officer, who reviews consolidated results when making decisions about allocating resources and assessing performance of the Group. Following the further expansion of module business and entering into the wafer business in 2011, the Group operated and viewed its performance in three segments. However, on September 28, 2012, the module business was disposed. Therefore, only two segments remained in 2014, 2015 and 2016. Furthermore, the Group's chief operating decision maker is not provided with asset information by segment. As such, no asset information by segment is presented. The following tables summarized the Group’s revenue and cost generated from different revenue streams. Substantially all of its revenues are derived in the PRC. The Group’s long lived assets and operations are substantially all located in the PRC.
 
The following table summarizes the Group’s revenue by segment:
 
Year ended December 31, 2014
 
Polysilicon
 
Wafer
 
Elimination
 
Total
 
Revenue – External
 
$
127,692,325
 
 
54,879,527
 
 
-
 
 
182,571,852
 
Revenue - Intersegment
 
 
29,424,883
 
 
-
 
 
(29,424,883)
 
 
-
 
Total revenue
 
 
157,117,208
 
 
54,879,527
 
 
(29,424,883)
 
 
182,571,852
 
Total Cost of revenue
 
 
119,703,550
 
 
47,861,811
 
 
(28,256,850)
 
 
139,308,511
 
Gross Profit
 
$
37,413,658
 
 
7,017,716
 
 
(1,168,033)
 
 
43,263,341
 
  
Year ended December 31, 2015
 
Polysilicon
 
Wafer
 
Elimination
 
Total
 
Revenue – External
 
$
125,916,457
 
 
56,124,511
 
 
-
 
 
182,040,968
 
Revenue - Intersegment
 
 
23,485,364
 
 
-
 
 
(23,485,364)
 
 
-
 
Total Revenue
 
 
149,401,821
 
 
56,124,511
 
 
(23,485,364)
 
 
182,040,968
 
Total Cost of revenue
 
 
121,193,840
 
 
46,763,308
 
 
(23,466,065)
 
 
144,491,083
 
Gross Profit
 
$
28,207,981
 
 
9,361,203
 
 
(19,299)
 
 
37,549,885
 
 
Year ended December 31, 2016
 
Polysilicon
 
Wafer
 
Elimination
 
Total
 
Revenue – External
 
$
167,530,309
 
 
61,570,902
 
 
-
 
 
229,101,211
 
Revenue - Intersegment
 
 
28,688,793
 
 
-
 
 
(28,688,793)
 
 
-
 
Total Revenue
 
 
196,219,102
 
 
61,570,902
 
 
(28,688,793)
 
 
229,101,211
 
Total Cost of revenue
 
 
125,320,832
 
 
52,413,007
 
 
(29,061,146)
 
 
148,672,693
 
Gross Profit
 
$
70,898,270
 
 
9,157,895
 
 
372,353
 
 
80,428,518
 
 
The following customers individually accounted for 10% or more of revenues:
 
 
 
Year ended December 31,
 
 
 
2014
 
2015
 
2016
 
Customer C
 
 
*
 
$
35,094,472
 
$
48,739,001
 
Customer A
 
 
*
 
 
20,465,558
 
 
*
 
Customer B
 
$
18,210,196
 
$
19,595,911
 
$
*
 
Customer F
 
$
23,882,302
 
$
18,125,773
 
$
*
 
 
*
Represents less than 10%