Sem Holdings Ltd

Operating as an investment holding company, SEM Holdings Limited specializes in delivering electrical and mechanical (E&M) engineering services across Macau and Hong Kong. The firm provides end-to-end electrical system solutions, from supply and installation to ongoing maintenance, for both new constructions and existing structures. Its expertise extends to diverse projects, including commercial and residential developments, hotel and casino complexes, public properties, and comprehensive hotel renovation works. SEM Holdings primarily serves main contractors and E&M engineering works subcontractors engaged in these various development and refurbishment initiatives. Established in 2006, the company is headquartered in Chai Wan, Hong Kong, and operates as a subsidiary of SEM Enterprises Limited.