• EPC of petroleum or petrochemical construction works
• Surface construction works of oil and gas fields
• Construction of refineries, petrochemical plants, fertilizer plants and gas processing plants
• Construction of oil and gas storage and long-distance pipelines
• Partial or individual contracting of feasibility studies, reconnaissance and surveys, foundation treatment, basic design, detailed design, procurement, construction, and commissioning trials of engineering projects
• Supervision of certain stages or the entire process of engineering projects
• Manufacturing, manufacturing supervision, and the installation of non-standard equipment
• Engineering and technical consultancy, technical service, environmental, health and safety evaluation of engineering projects and technical training