The 21-year-old also won January's Dunhill Championship on the European Tour and February's Nashua Masters on the Sunshine Tour.
'I've got that winning feeling again and it is great,' Rose said. 'It is turning out to be a great season.'
Rose's four-day total of 14-under 266 left him five shots clear of runner-up Prayad Marksaeng of Thailand.
Rose is scheduled to return to England to play in next week's European Tour event, the Benson & Hedges International at the Belfry.
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