Building construction; Plant construction; Building construction services; Plant construction services; General civil engineering works, namely, construction, repair and modernization of infrastructure, installations and apparatus, namely, buildings; Machinery installation; Plumbing; Electrical works, namely, installation, maintenance and repair of electrical systems; Instrumentation works, namely, installation, maintenance and repair of instruments for controlling electrical, heating, ventilation, and air conditioning systems in buildings, and of instruments used for automated or partly automated industrial operations; Painting; Dredging; Maintenance of energy generation facilities; Maintenance of chemical plants; Maintenance of utility system plants, namely, water supply plants, water treatment plants, electricity production plants and fuel supply plants; Maintenance of food manufacturing and processing plants; Maintenance of machinery manufacturing plants; Maintenance of environmental protection facilities, namely, facilities for the reduction of air, water and soil pollution; Maintenance of warehouse and distribution facilities; Maintenance of medicinal chemical manufacturing plants; Maintenance of materials processing and assembly plants; Maintenance of automobile plants; Construction consultancy, namely, consultancy in the field of constructing buildings for utilities, industrial companies, commercial companies and governments; Building construction supervision; Inspection and maintenance of plant facility, namely, inspection during the course of construction of industrial plants, and maintenance of industrial plant buildings; Providing information on construction, repair, restoration, maintenance and installation in the field of general construction contracting; Consultancy relating to installation, maintenance and repair services in the field of general construction contracting; Supervision of construction projects; Maintenance of computer network systems, namely, computer hardware systems

Construction drafting; Civil engineering services; Designing of electrical plant; Designing of communications plant; Designing of chemical plant; Designing of ironmaking plant; Designing of utility system plant; Designing of food manufacturing and processing plant; Designing of machinery manufacturing plant; Designing of environmental protection facilities system; Designing of storage and transport facilities system; Designing of medicinal chemical manufacturing plant; Designing of process and assembly plant; Designing of automobile plant; Research and development of technology in the fields of environmental protection, food manufacturing, process and assembly, medicinal chemical manufacturing, stockpiling and distribution facilities, utility system, machinery manufacturing plants, chemical and fine chemical plants, energy production facilities, information processing facilities, facilities for the prevention of pollution, coal, nuclear power and alternative energy production facilities, and biotechnology facilities; Computer software design, computer programming; Maintenance of computer software; Environmental assessment, namely, environmental testing and inspection services; Industrial research, namely, conducting of feasibility studies in the field of environmental engineering; Industrial research, namely, conducting of feasibility studies in the field of new technologies; Design and programming of computer network systems; Information processing using computer, namely, computer system administration for others