Xi S&D, Inc. engages in the development and operation of the real estate business. It operates through the following business divisions: Construction, Housing, and Home Solution. The Construction business division focuses on clean room construction, advanced factories, Internet data centers, and petrochemical plant projects. The Housing business division is involved in the sale of buildings such as apartments, officetels, and residential-commercial complexes. The Home Solution business division refers to smart home systems, professional construction work, and facility maintenance management. The company was founded on April 8, 2000 and is headquartered in Seoul, South Korea.