CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (USD $)	3 Months Ended		6 Months Ended
	Nov. 30, 2011	Nov. 30, 2010	Nov. 30, 2011	Nov. 30, 2010
Sales revenue, net
Concrete Sales	$ 15,033,366	$ 22,927,983	$ 30,861,619	$ 41,148,150
Manufacturing Service	484,327	3,002,137	1,949,915	5,969,500
Total revenue	15,517,693	25,930,120	32,811,534	47,117,650
Cost of revenues
Concrete Sales	10,402,697	17,738,508	21,042,573	31,769,732
Manufacturing Service	131,312	964,560	583,278	1,987,353
Total cost of revenues	10,534,009	18,703,068	21,625,851	33,757,085
Gross profit	4,983,684	7,227,052	11,185,683	13,360,565
Operating expenses:
General and administrative expenses	2,147,621	1,851,878	3,688,814	3,294,188
Operating income (loss)	2,836,063	5,375,174	7,496,869	10,066,377
Other income (expense):
Interest income	0	450	511	994
Interest expense	(10,295)	(51,574)	(11,377)	(103,207)
Other income	74,413	8,482	103,892	18,666
Other expense	0	(8,877)	0	(8,877)
Total other income (expense)	64,118	(51,519)	93,026	(92,424)
Earnings (loss) before tax	2,900,181	5,323,655	7,589,895	9,973,953
Income tax	936,502	174,175	2,267,659	580,930
Net income (loss)	1,963,679	5,149,480	5,322,236	9,393,023
Net income (loss) attributable to:
-Common stockholders	1,805,933	4,878,251	4,906,720	8,854,700
-Non-controlling interest	157,746	271,229	415,516	538,323
Net income (loss)	1,963,679	5,149,480	5,322,236	9,393,023
Earnings (loss) per share - Basic and Dilutive (in dollars per share)	$ 0.13	$ 0.38	$ 0.37	$ 0.68
Weighted average shares outstanding - Basic and Dilutive (in shares)	13,549,503	12,930,620	13,283,475	12,929,992
Comprehensive Income
Net income (loss)	1,963,679	5,149,480	5,322,236	9,393,023
Foreign currency translation adjustment	26,408	985,304	1,315,049	1,221,507
Comprehensive Income (loss)	1,990,087	6,134,784	6,637,285	10,614,530
Comprehensive income attributable to non-controlling interests	158,898	320,500	470,250	597,868
Comprehensive income (loss) attributable to China Infrastructure Construction Corporation	$ 1,831,189	$ 5,814,284	$ 6,167,035	$ 10,016,662