PROPERTY, PLANT AND EQUIPMENT, NET

12 Months Ended

Dec. 31, 2012

PROPERTY, PLANT AND EQUIPMENT, NET [Abstract]

10.

PROPERTY, PLANT AND EQUIPMENT, NET

Property, plant and equipment and related accumulated depreciation are as follows:

	As of December 31,
	2011			2012
	RMB			RMB
Buildings		441,046,753			507,989,849
Machinery and equipment		3,217,550,882			3,307,235,601
Motor vehicles		22,814,205			22,609,244
Furniture, fixture and office equipment		44,168,256			45,729,731
		3,725,580,096			3,883,564,425
Less: Accumulated depreciation		(412,394,030	)		(732,881,877	)
Less: Impairment		(4,784,595	)		(70,260,894	)
Subtotal		3,308,401,471			3,080,421,654
Construction in progress		259,892,829			249,451,007
Property, plant and equipment, net		3,568,294,300			3,329,872,661

Depreciation expenses were RMB96,751,960, RMB263,846,113 and RMB323,152,636 for the years ended December 31, 2010, 2011 and 2012, respectively.

Construction in progress primarily represents the construction of new production line. Costs incurred in the construction are capitalized and transferred to property and equipment upon completion, at which time depreciation commences.

Based on impairment assessment performed on long-lived assets held for use, the Company recorded no impairment provision in the years ended December 31, 2010, 2011 and 2012. In the years ended December 31, 2010, 2011 and 2012, the Group recorded impairment of RMB5,376,071, nil and RMB65,476,299 related to the retirement of certain equipment in the wafer and cell production line that had become obsolete.

Certain property, plant and equipment are pledged as collateral for the Company's borrowings (Note 17).

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

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