Simplex Infrastructures Limited is engaged in the business of contract constructing infrastructural facilities. The Company's segments include Construction business and Others. The Others segment includes oil drilling services, real estate, and hire of plant and equipment. The Company is engaged in building rail infrastructure, including rail tracks, station buildings, bridges and culverts; marine structures, including ports and bridges; design and construction of high-rise infrastructure, including multistoried residential towers, institutional or information technology buildings, hotels, hospitals and mass housing projects; construction of power infrastructures, such as thermal, hydel and nuclear, as well as ultra-mega power projects (UMPP), and renovation and modernization of airports. The Company offers projects for cement, aluminum, copper, engineering, automobiles, petrochemicals, fertilizers, paper textiles, pharmaceuticals, chemicals and other industrial plants.