The movie-theater business in Thailand is led by the Major Cineplex Group, which owns the Major Cineplex chain as well as the EGV chain and operates the Paragon Cineplex at Siam Paragon as well as Thailand's IMAX theaters. Behind the combined Major Cineplex-EGV, which has a 50 percent market share, the SF Group is the No. 2 operator, with a 35 percent share. Smaller chains include Apex in Bangkok's Siam Square, Thana Cineplex, Major Hollywood and UMG. In Chiang Mai, there is the Vista cinema. In Southern Thailand, there is the Coliseum chain.