Services of construction, maintenance, preservation and repair of drilling vessels, drilling platforms, gas pipeline, oil pipeline and subsea ducts; rental of equipment included in this class, namely, drilling vessels, drilling platforms, gas pipeline, oil pipeline and subsea ducts, maintenance of industrial plants

Services of construction, maintenance, preservation and repair of drilling vessels, drilling platforms, gas pipeline, oil pipeline and subsea ducts; rental of equipment included in this class, namely, drilling vessels, drilling platforms, gas pipeline, oil pipeline and subsea ducts, maintenance of industrial plants

Commercial business management for the oil and gas industry, focused on promoting entrepreneurship, technological innovations, and the development of new technologies; business intermediation services for the oil and gas segment, focused on uniting potential private investors with seekers, including entrepreneurs