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SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2014
SUMMARY OF PRINCIPAL ACCOUNTING POLICIES  
Schedule of expected useful lives of property and equipment

                                                                                                                                                                                    

Buildings

 

20 years

Leasehold improvements

 

Over the shorter of the lease term or their estimated useful lives

Machinery

 

5-10 years

Furniture, fixtures and equipment

 

5 years

Motor vehicles

 

5 years

Solar power systems

 

20 years

 

Schedule of useful life intangible assets

                                                                                                                                                                                    

Technical know-how

 

10 years

Computer software

 

1-10 years

 

Schedule of gross prepayments made to individual suppliers in excess of 10% of total advances to suppliers

                                                                                                                                                                                    

 

 

At December 31,
2013

 

At December 31,
2014

 

 

 

$

 

$

 

Supplier A

 

 

18,506,251 

 

 

16,268,349 

 

Supplier B

 

 

10,497,138 

 

 

10,459,225 

 

Supplier C

 

 

9,840,223 

 

 

9,804,708 

 

Supplier D

 

 

2,904,207 

 

 

9,389,406