42 Geological and mining analysis services, namely, conducting geological prospecting, geological research and geological surveys; chemical laboratory services, namely, chemical research, chemistry services in the nature of chemical laboratory services and chemical analysis; computer related services, namely, computer systems analysis, leasing of computers, hardware consultancy, namely, consultancy in the design and development of computer hardware, computer programming, computer software design, computer software maintenance and updating; rental of computers; drafting services, namely, construction drafting, namely, drafting of construction plans for recreational premises and engineering drawing services, namely, drafting of plans and engineering drawings for others; consultancy services, namely, computer hardware consultancy services, namely, consultancy in the design and development of computer hardware; engineering services, namely, industrial design services, technical research in the field of minerals processing, mechanical research, conducting technical project studies and materials testing; land surveying services; design of processing and materials, handling plants and structures used in the mining industry