3. NET INVESTMENT IN SALES-TYPE LEASES

Under sales-type leases, Shanghai TCH leased TRT systems to Xingtai and Zhangzhi with terms of five and thirteen years, respectively and leased CHPG systems to Tong Chuan Shengwei and Jin Yang Shengwei respectively for five years, WGPG systems to Shenmu for ten years, BMPG systems to Pucheng for fifteen years, and a power and steam generating system from waste heat from metal refining to Erdos for twenty years. The components of the net investment in sales-type leases as of June 30, 2011 and December 31, 2010 are as follows:

	2011			2010
Total future minimum lease payments receivable	$	417,247,218		$	379,641,671
Less: executory cost		(111,838,528	)		(99,866,170	)
Less: unearned interest income		(169,130,346	)		(154,564,733	)
Net investment in sales - type leases		136,278,344			125,210,768
Current portion		8,360,756			7,624,637
Noncurrent portion	$	127,917,588		$	117,586,131

As of June 30, 2011, the future minimum rentals to be received on non-cancelable sales-type leases by years are as follows:

2012	$	37,201,181
2013		35,680,199
2014		33,883,835
2015		27,549,931
2016		27,519,027
Thereafter		255,413,045
Total	$	417,247,218