37 Pipeline maintenance; pipeline construction; oil pipeline laying; pipeline installation and repair; Building inspection; Construction services, namely, construction and installation of pipe lines, electric lines, and inside electrical wiring and cabling; construction planning, management, and supervision; construction of roads, streets, and public works; Construction project management services; oil and gas drilling; electrical contractor services; inspection services in the course of construction of pipelines and utility transmission and distribution installations; comprehensive preventative maintenance services for electrical systems and pipelines; consultation for the industrial and commercial sectors for construction project management, namely, planning, organizing, monitoring and carrying out unique and complex construction projects