Chai797 has locations all throughout Korea and serves premium Chinese cuisine. It serves authentic, healthy Chinese dishes using fresh, local ingredients as well as home-made dim sum. Chai797 serves a variety of dim sum made by master chefs from China. Also, private rooms are available for group occasions. Dim sum is available at the Seorae Village, Center1, Centerpoint, Itaewon, and Jamsil Lotte Castle locations.
These are not all the locations. For more locations, check their website.