Sem Holdings Ltd

SEM Holdings Limited is an investment holding company that provides electrical and mechanical (E&M) engineering services in Macau and Hong Kong. It supplies, installs, and maintains electrical systems for new and existing buildings, including commercial and residential developments, hotels and casinos, public properties, and hotel renovations, and also trades electrical cables. Founded in 2006, the company is headquartered in Chai Wan, Hong Kong, and operates as a subsidiary of Yao Capital Limited.