John Dung Luong List of directors and agents named John Dung Luong. Found 2 results. JOHN DUNG LUONG Registered Address: 14115 DOWDALE DRIVE LAUREL MD 20707 Appointed in one company. Go To Profile JOHN DUNG LUONG Registered Address: 14115 DOWNDALE DRIVE LAUREL MD 20707 Appointed in one company. Go To Profile