Monadelphous Group Limited, an engineering group, engages in the provision of construction, maintenance, and industrial services to resources, energy, and infrastructure sectors in Australia, China, Mongolia, Papua New Guinea, China, the Philippines, and internationally. The company operates through Engineering Construction, and Maintenance and Industrial Services divisions. It offers fabrication, modularization, offsite pre-assembly, procurement, and installation of structural steel, tankage, mechanical and process equipment, piping, demolition, and remediation works; multi-disciplined construction services; plant commissioning; electrical and instrumentation services; engineering, procurement, and construction services; process and non-process maintenance services; and front-end scoping, shutdown planning, management, and execution services. The company also provides water and wastewater asset construction and maintenance; transmission pipelines and facilities construction; power and water assets operation and maintenance; heavy lift and specialist transport; access solutions; dewatering services; corrosion management services; specialist coatings; rail maintenance services; and insulation and cladding services. In addition, it offers turnkey heavy lift services, and civil and electrical services. The company was founded in 1972 and is headquartered in Perth, Australia.