MYSTAR ENGINEERING CORP. mainly involves in the operation of facility-related businesses. The Company operates in three business segments. The Mechatronics segment involves in the testing and adjustment of various industrial machinery, the design, evaluation and experimentation of automobiles and related parts, and the related technician dispatching and training business. The Facility segment involves in the maintenance, cleaning and guarding of hotels and shopping centers; the renewal, expansion, improvement work and repair of construction facilities; the operation of hotels, the leasing of commercial facilities, and engineering consulting services. The Contents Service segment involves in the operation of studios, halls and conference rooms, the events production business, the provision of broadcasting support services, as well as the maintenance and management of broadcasting and telecommunication equipment.