CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $)	3 Months Ended
	Aug. 31, 2013	Aug. 31, 2012
Cash flows from operating activities
Net income	$ 123,529	$ (87,680)
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred tax	(3,683)	(3,598)
Amortization expense	30,428	29,544
Depreciation expense	167,418	161,054
Loss on disposal of property, plant and equipment		154
Changes in operating assets and liabilities:
Decrease/(increase) in accounts receivable	46,562	(305,216)
Increase in inventories	(35)	(4,242)
(Increase)/decrease in other receivables and deposits	(94,359)	(53,956)
(Increase)/decrease in tax recoverable	(77)	1
Increase/(decrease) in deferred income	441,848	(369,056)
(Decrease)/increase in accounts payable	(451,369)	406,434
Increase in tax payables	46,064	39,301
Increase/(decrease) in accrued liabilities and other payables	554	(5,173)
Net cash provided by/(used in) operating activities	306,880	(192,433)
Cash flows from investing activities
Purchase of property, plant and equipment		(742)
Increase in amount due from a related company	(1,431)	(77,120)
Net cash used in investing activities	(1,431)	(77,862)
Cash flows from financing activities
Increase in amount due to related companies	6,563	53
Net cash provided by financing activities	6,563	53
Net increase/(decrease) in cash and cash equivalents	312,012	(270,242)
Effect of exchange rate changes on cash and cash equivalents	28,076	605
Cash and cash equivalents at beginning of period	5,479,091	3,520,248
Cash and cash equivalents at end of period	5,819,179	3,250,611
Cash paid for interest
Cash paid for income taxes		$ 1,590