• The supply and installation of medium voltage power submarine cable systems 
• The supply and installation of repeaterless optical fibre submarine cable systems 
• The supply and installation of composite power - optical fibre submarine cables 
• The supply and installation of underground power and composite power - optical fibre cable systems with rated voltage up to 400kV. 
• The supply and installation of optical fibre underground systems.

• The engineering of the system according to requested specifications and / or in consultation with the customer 
• The cable route survey at the shore ends and the open sea as well as at the undergroud segments 
• The design and manufacturing of the suitable cable types according to route survey results and specified requirements 
• The transportation of the cables on site 
• The installation of the cables with the use of specialised cable laying vessels with precise navigation equipment, dynamic positioning and sophisticated cable laying machinery. The cable laying may include the simultaneous plough burial of the cables under the sea bed at the open sea segments (as in the case of repeaterless optical fibre cable links) 
• The installation of the land cables in extension to the submarine cables from the landing points to the terminal stations or termination points 
• The supply of repair-joints, passive branching units (repeaterless optical fibre. links), transition joints between submarine and land cables and cable terminations 
• The construction of the transition joints, terminations and repair joints 
• The protection of the cables by burial at the shore ends, on the land segments, the construction of beach manholes and other related civil works 
• The supply and installation at the terminal stations of the transmission equipment including special optical amplification equipment (in the case of repeaterless optical fibre cable systems) 
• The commissioning of the system 
• The project management 
• The training of the customer's personnel in the operation and maintenance of the system

• The engineering of the link according to the requested specifications and / or in consultation with the customer 
• The design and manufacturing of the cables 
• The transportation and installation of the cables along the route with the use of specialised equipment 
• The civil works which include the excavations, the back-filling and the reinstatement of the ground to its initial condition before the installation of the cables 
• The supply of the required accessories which include the relevant joints and terminations 
• The construction of the joints and terminations which are required for the realization of the link 
• The supply and installation of a temperature monitoring system with the use of optical fibres to monitor the loading of the installed cables (in the case of high voltage underground cables) 
• The commissioning of the system 
• The project management 
• The training of the customer's personnel in the operation and maintenance of the system