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SEGMENT INFORMATION | 12 Months Ended
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Dec. 31, 2018
Segment Reporting [Abstract] |
SEGMENT INFORMATION | 18. 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, the module business was disposed in September 2012 and the wafer business was discontinued in September 2018. Therefore, only one segment - Polysilicon remained as of December 31, 2018. All of its revenues are derived in the PRC. The Group’s long-lived assets and operations are all located in the PRC and no geographical information is presented. The following customers individually accounted for 10% or more of revenues:
|  | Year ended December 31, |
|  | 2016 |  |  | 2017 |  |  | 2018 |
Customer A |  |  | * |  |  | $ | 39,219,089 |  |  | $ | 115,411,965 |
Customer B |  | $ | 47,696,332 |  |  | $ | 43,258,204 |  |  | $ | 57,858,670 |
Customer C |  |  | * |  |  | $ | 39,099,677 |  |  |  | * |
* |  | Represents less than 10%
Total sales to the Group’s largest customers whose sales constitute over 10% of revenue accounted for approximately 24%, 38% and 57% of revenues for the years ended December 31, 2016, 2017 and 2018, respectively. The Group is substantially dependent upon the continued participation of these customers in order to maintain its total revenues. Significantly reduction in the Group’s dependence on these customers is likely to take time and there can be no assurance that the Group will succeed in reducing such dependence.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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