The 2026 CTOS Annual Meeting will be held at the COEX Convention & Exhibition Center. The two official hotels for CTOS are located adjacent to the COEX. Room rates include complimentary breakfast one person per room, fitness center, pool and parking for hotel guests. Please click on the hotels below for more information and to book your room:

• Grand InterContinental Seoul Parnas The Grand InterContinental Seoul Parnas is located in the Gangnam business district, directly within the Korea World Trade Centre complex in Seoul. It is immediately adjacent to the COEX Convention & Exhibition Center, Starfield COEX Mall, and Seoul subway, offering premier access to Gangnam's business and shopping hub
• The Westin Seoul ParnasThe Westin Seoul Parnas is located directly in the Gangnam business district, immediately adjacent to the COEX Convention & Exhibition Center, Starfield COEX Mall, and World Trade Center in Seoul. It is across the street from the Bongeunsa Temple and the Bongeunsa Subway Station. Following a comprehensive full-scale renovation, the hotel officially reopened in September 2025, presenting a refined and elevated experience for discerning guests.

Please Note! The InterContinental and the Westin Hotels may show sold out however, cancellations occur often so check these links periodically for availability.

For your convenience, below is a list of hotels in Seoul noting the distance from the COEX Convention Center as well as other useful information so that you can book directly with these hotels.