Jo Wansu, along with his compatriot Shin Jae Ho, Vietnamese Ngo Van Chuyen and 15 others, have been charged with organizing gambling by local prosecutors.
Rim Kang Ha, another Korean, has been charged with gambling.
In 2019, Jo opened the Vietko Soft company in Bac Ninh, then opened new branches in Khanh Hoa, as well as the Gaming Club Sunrise casino at the Sunrise hotel in Nha Trang.
Through his connections, Jo and Ngo, who is the director of the Hoang Nam Investment and Tourism Development Company, funded the business of another casino called GameClub Lucky for foreigners in the basement of the Sheraton Nha Trang hotel.
20% of the revenue would go to Jo and Ngo, while the rest would fund the casino's operation.
On March 9 last year, the GameClub Lucky casino officially opened, and Jo told Shin to stop the operation of all other casinos owned by Jo in the area.
On April 15 last year, the police raided GameClub Lucky casino and caught several foreigners gambling. Officers seized chips amounting tens of thousands of U.S. dollars, as well as over $109,000 worth of cash, during the raid.
They also seized over $400,000 worth of cash from Shin's office, along with other gambling evidence.
Prosecutors said the casino illegally gained over VND52.6 billion from March 7 to April 15 last year.