42 Technical consultation services, namely, supplying technical expertise and advice in the field of oil and gas drilling, extraction, well downhole coring and well treatment, technical geological estimations, safety auditing system services to improve safety of construction works on job sites, engineering consulting services and quality assurance services with all of the forgoing in the fields of oil and gas, petrochemical, infrastructure, mining, minerals, manufacturing, governmental, public works, utility, industrial, commercial and property industries; Technical services, namely providing and carrying out engineering services, engineering drawing services, surveying services, drafting services, construction drafting services, designing services, namely, designing of plant components and equipment for utility power supply facilities, technical project studies, laboratory investigations in the form of laboratory research in the field of oil and gas, technology supervision and technical inspection, with all of the forgoing in the oil and gas, petrochemical, infrastructure, mining, minerals, manufacturing, governmental, power supply, public works, utility, industrial, commercial and property industries