Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
REVENUES	$ 2,791,470	$ 3,411,552	$ 9,835,733	$ 21,014,064
COST OF REVENUES	(2,323,716)	(2,950,124)	(8,314,149)	(22,776,087)
GROSS PROFIT (LOSS)	467,754	461,428	1,521,584	(1,762,023)
OPERATING EXPENSES
Selling and marketing	(43,118)	(217,942)	(135,310)	(376,975)
General and administrative	(452,312)	(532,012)	(1,375,513)	(1,454,017)
Total operating expenses	(495,430)	(749,954)	(1,510,823)	(1,830,992)
(LOSS) INCOME FROM OPERATIONS	(27,676)	(288,526)	10,761	(3,593,015)
Interest income	72	102	2,135	102
Interest expenses	(2,526)	(646)	(5,375)	(6,586)
Other income (expense), net	43,958	1,273	132,959	62,489
INCOME (LOSS) BEFORE INCOME TAX EXPENSE	13,828	(287,797)	140,480	(3,537,010)
INCOME TAX EXPENSE	(2,209)	(15,784)	(17,893)	(23,196)
NET INCOME (LOSS)	11,619	(303,581)	122,587	(3,560,206)
Foreign currency translation loss	(28,755)	(85,728)	(62,897)	(173,879)
TOTAL COMPREHENSIVE INCOME (LOSS)	$ (17,136)	$ (389,309)	$ 59,690	$ (3,734,085)
EARNINGS (LOSS) PER SHARE
Basic and diluted	$ 0.00	$ (0.01)	$ 0.00	$ (0.14)
Weighted average number of shares outstanding – Basic and diluted	26,556,566	25,712,713	26,556,566	25,712,713