42 SURVEYING AND ENGINEERING SERVICES NAMELY, NATURAL RESOURCES EXPLORATION, HYDROGRAPHIC, HYDROLOGICAL, SOIL AND TOPOGRAPHIC SURVEYS, FEASIBILITY STUDY SERVICES, CONSTRUCTION EQUIPMENT INSPECTION SERVICES, X-RAY AND ULTRASONIC TESTING OF WELDING, CONDUCTING RESEARCH STUDIES IN THE FIELD OF ECONOMIC DEVELOPMENT, ECONOMIC CONSTRUCTION OPERATIONS, MANPOWER REQUIREMENTS, ENVIRONMENTAL CONCERNS, HYDRAULICS, ARCHITECTURAL DESIGN SERVICES, QUALITY CONTROL SERVICES AND PROTECTION OF INDUSTRIAL PROPERTY SERVICES