DISA

Civil infrastructure construction, namely, underwater construction, repair and maintenance of large scale infrastructural projects; Civil infrastructure construction, namely, construction of building pits, tunnels, aqueducts, bridges, sluices and locks, jetties and quays; Repair or maintenance of diving machines and apparatus; Installation of oil exploration instruments; Installation of oil pipelines; Installation of oil production apparatus; Building construction; Building maintenance; Building repair

Rescue services, namely, rescue of ships in distress; Recovery services, namely, marine wreck removal and salvage; Marine towing; vehicle towing; Aircraft salvage; automobile salvage; Vessel salvage services; Underwater salvage; Marine salvage