CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $)	9 Months Ended
	Feb. 28, 2014	Feb. 28, 2013
Cash flows from operating activities
Net income/(loss) before non-controlling interest	$ 653,552	$ (11,307)
Adjustments to reconcile net income/(loss) to net cash provided by operating activities:
Amortization expense	89,240	91,331
Depreciation expense	507,402	484,742
Deferred tax	(11,110)	(10,821)
Loss on disposal of property, plant and equipment		5,815
Changes in operating assets and liabilities:
Decrease/(increase) in accounts receivable	1,443,880	(125,863)
(Increase)/decrease in inventories	(1,912)	7,934
(Increase) in other receivables and deposits	(942,202)	(789,959)
(Increase) in tax recoverable	(216)	(195)
Increase/(decrease) in deferred income	19,561	(358,694)
(Decrease)/increase in accounts payable	(1,838,930)	856,169
Increase in tax payables	270,315	140,706
Increase in accrued liabilities and other payables	136,340	47,185
Net cash provided by operating activities	325,920	337,043
Cash flows from investing activities
Purchase of property, plant and equipment	(59,242)	(85,254)
Increase in amount due from a related company	(31,275)	(14,692)
Sale/(purchase) of available-for-sale investment		318,392
Net cash used in acquisition of a subsidiary	(254,112)
Net cash (used in)/provided by investing activities	(344,629)	218,446
Cash flows from financing activities
Increase in amount due to related companies	39,921	15,140
Net cash provided by financing activities	39,921	15,140
Net increase in cash and cash equivalents	21,212	570,629
Effect of exchange rate changes on cash and cash equivalents	1,968	17,657
Cash and cash equivalents at beginning of period	5,479,091	3,520,248
Cash and cash equivalents at end of period	5,502,271	4,108,534
Cash paid for interest
Cash paid for income taxes	$ 17,068	$ 28,100