42 Research, design and development of computer hardware, software and computer blockchain technology for supply chain traceability to authenticate, grade, identify, observe, measure, test, check, analyse, inspect, inscribe and certify raw materials namely metals and minerals; design of computer hardware and software; computer development; design and development of software; research and development of new products for others; conducting of technical project studies; architecture; software development (design); software installation; software maintenance; updating of software; programming for computers; computer system analysis; computer system design; digitization of documents; software as a service; cloud computing; information technology consultancy; hosting of servers; energy auditing; electronic data storage; technological consultancy; all the aforementioned services are related to raw materials namely metals and minerals.