ACCOUNTS RECEIVABLE, NET-THIRD PARTIES (Table)

12 Months Ended

Dec. 31, 2012

ACCOUNTS RECEIVABLE, NET-THIRD PARTIES [Abstract]

Schedule of Accounts Receivable

	As of December 31,
	2011			2012
	RMB			RMB
Accounts receivables		1,779,953,029			2,386,356,664
Allowance for doubtful accounts		(179,746,165	)		(673,671,445	)
Accounts receivable, net		1,600,206,864			1,712,685,219

Schedule of Movement of Allowance for Doubtful Accounts

	As of December 31,
	2010			2011			2012
	RMB			RMB			RMB
At beginning of year		2,800,000	)		378,888			179,746,165
Addition		8,534,372			184,990,129			541,662,539
Write-off		(10,764,771	)		(24,140	)		-
Reversal		(190,713	)		(5,598,712	)		(47,737,259	)
At end of year		378,888			179,746,165			673,671,445