35 Advertising, business management, organization of exhibitions for commercial or advertising purposes, public relations, business administration consultancy services, business auditing and commercial intermediation services for others, namely, negotiation and settlement of commercial transactions in the field of energy, in particular, as regard to monitoring and control and instrumentation, low voltage, transmission and distribution, infrastructure, equipment and facilities, fluid mechanics; Advertising, business management, organization of exhibitions for business and advertising purposes, public relations, business administration consultancy services, business auditing and commercial intermediation services for others, namely, negotiation and settlement of commercial transactions in the field of energy in particular for test and commissioning, operating, exploiting, project management, scheduling management, coordination, reliability, maintenance, maintainability, availability, safety, certification, specification, studies, validation, verifications, software engineering and quality