Hanoi (Thomson Financial) - Vietnam has given the go-ahead for a Canada-based casino and resort group to build a USD 4.2-billion tourism complex in a southern beach area near Ho Chi Minh City, the government said Thursday. Asian Coast Development (Canada) Ltd., or ACDL Group, has received the green light for the project in the seaside province of Ba Ria-Vung Tau, east of Vietnam's largest city and port, formerly called Saigon.