On 10 November 2023 – Miss Napat Thuppun, Director, International Affairs Division hosted a seminar session on the topic of "services of One-Stop Service Center for Visas and Work Permits”, with collaboration of related government agencies, including the Board of Investment (BOI), Foreign Service Division, the Immigration Bureau, and the Department of Employment at OSOS, Meeting room 1, One Start One Stop Investment Center, 18th floor. Chamchuri Square Building. The attendees were presented with information on services provided by Single Window system, LTR Visa and Smart Visa unit.