Meeting & Seminar Venues

The Siam Oriental Meeting Room is the most popular meeting room within the hotel. With a floor area of 127 square meters, it’s a perfect size to accommodate 50-100 attendees, making it suitable for various types of events and meetings. This meeting room has hosted numerous events, including seminars, training sessions, exhibitions, and workshops.

The Siam Oriental Meeting Room comes with many conveniences such as a sound system, lighting system, LED screen, projector, microphones, wireless microphones, flip charts, a stage, a podium, a registration table, HDMI cables, VGA cables, and AV cables.

Onyx Meeting Room is the hotel’s smallest meeting room, with an area of 51 square meters (4.6 meters wide, 11.2 meters long, and 2.5 meters high). It can accommodate a maximum of 18 seats. Inside the room, there is a whiteboard, flip chart, teleconferencing equipment, video conferencing equipment, HDMI cables, VGA cables, and AV cables. Although it is the smallest meeting room in the hotel, it still has enough space to set up a registration table or a refreshment table. Additionally, the room receives natural light and is wide enough to prevent guests from feeling cramped.

Ocean Marina Meeting Room is the second largest meeting room in the hotel, with an area of 350 square meters (14.6 meters wide, 25 meters long, and 3 meters high). It can accommodate up to 300 guests. With its suitable size, natural light that shines through almost every corner, and a modern and contemporary look, elegantly decorated in cool, comfortable grey and blue tones, it is another popular room for clients to use as a venue for seminars, large meetings, product launches, lectures, and press conferences. Inside the room, there is a full range of meeting equipment such as a large LED screen, a projector, a microphone and wireless microphones, a whiteboard, a flip chart, a stage, a podium, a registration table, HDMI cables, VGA cables, AV cables, and also a sound and lighting system ready for use.

Grand Mandarina Ballroom, the largest meeting room with an area of 730 square meters (41 meters wide, 18 meters long, 5 meters high), it can accommodate up to 1,000 standing guests. If arranged in a theater-style seating, it can accommodate up to 800 people. The Grand Mandarina Ballroom has hosted a variety of events, such as weddings, seminars, major conferences, press conferences, product launches, and lectures. This meeting room has a spacious pre-function area that can be used for coffee breaks, networking, or registration. Inside the meeting room, it comes with natural light, a state-of-the-art lighting and sound system considered the best in the eastern Bangkok and Samut Prakan area, a large LED screen, a projector, microphones and wireless microphones, a whiteboard, a flip chart, a stage, a podium, a registration desk, HDMI cables, VGA cables, and AV cables.

The Orchard Copper room is a new meeting room at the Siam Mandarina Hotel. It is decorated in a white cream and copper brown tone, true to its name. It is a medium-to-large sized room that can accommodate 50-400 guests. The room is fully equipped with meeting facilities such as a large LED screen, projector, microphone, and wireless microphones. It is suitable for hosting meetings, seminars that require space for various workshop activities, or even product launches and public relations events.

Raydus Cafe is a newly opened cafe in early 2025. It has a size of 1,105 square feet and a ceiling height of 7.3 feet, accommodating a maximum of 30 customers. The space is divided into zones using the counter bar as a partition, making it suitable for work discussions, as a working space, and can also be used for organizing various club activities or informal meetings.