CONSTRUCTIONAL AND ENGINEERING CONTRACTING RELATED TO TECHNOLOGY PROJECTS - FINAL HANDOVER - OIL AND GAS FILED FACILITIES BUILDING CONTRACTING - OIL AND GAS PRODUCTION FACILITES OPERATION AND MAINTENANCE SERVICES - MECHANICAL CONSTRUCTION - ELECTRICAL CONSTRUCTION - OIL AND NATURAL GAS PIPE LINES INSTALLATION AND MAINTENANCE - ONSHORE AND OFFSHORE OIL AND GAS FIELDS AND FACILITIES SERVICES - METAL ESTABLISHMENT CONTRACTING