Vistar Holdings Ltd. engages in the electrical and mechanical engineering services. It operates through the following segments: Installation Services, Alterations and Addition Works, and Maintenance Services. The Installation Services segment is involved in the supply and carrying out fire prevention system installation services. The Alterations and Addition Works segment provides alteration and additions services on existing fire prevention system of customers. The Maintenance Services segment offers repairs and maintenance services. The company was founded on June 27, 2017 and is headquartered in Hong Kong.