Mars Group Holdings Corporation, formerly Mars Engineering Corporation is a Japan-based company mainly engaged in the manufacture and sale of entertainment machinery. The Company operates in three business segments. The Amusement-related segment is engaged in the development, manufacturing and sale of products for amusement facilities. The Automatic Identification system-related segment is engaged in the proposal and sale of automatic identification systems utilizing RFID (radio frequency identification device) and bar code. The Hotel-related segment is engaged in operating hotels.