Madagascar
Subsea
Ambatovy Nickel Plant — cold water pipe break repair
Emergency intervention on a damaged cold-water pipe supplying the nickel processing facility, with full subsea diagnostic, repair and recommissioning.
A selection of marine contracting operations carried out for port authorities, industrial clients and infrastructure owners, from subsea inspections to full port maintenance campaigns.
Click any card to open the full case study: context, scope, operations performed, challenges and key outcomes.
Madagascar
Subsea
Emergency intervention on a damaged cold-water pipe supplying the nickel processing facility, with full subsea diagnostic, repair and recommissioning.
La Réunion
Inspection
Third-party certified inspection of a subsea industrial structure, delivering a full condition report and recommendations under Bureau Veritas oversight.
Mauritius
Port
Engineering, supply and installation of six heavy-duty mooring devices for a major upgrade of the Port Louis maritime infrastructure.
La Réunion
Decommissioning
Safe removal and recovery of an experimental wave energy prototype off Saint Pierre, in compliance with local environmental authorities.
La Réunion
Inspection
Comprehensive underwater inspection of the Takamaka hydroelectric dam, including intake structures, upstream facing and sediment conditions.
La Réunion
Civil works
Underwater reinforcement of the bridge abutments on the Rivière des Marsouins, including structural surveys, rebar and concrete operations.
Madagascar
Subsea repair
In-situ repair of a damaged submerged pipeline, including diagnostic dive, clamp installation and full pressure test before recommissioning.
Madagascar
Port
Framework contract for pluri-annual underwater maintenance and periodic bathymetric surveys of the deepwater Ehoala port facility.
Madagascar
Port
Harbor maintenance operations including fender replacement, quay wall inspections and underwater cleaning across the port's active berths.
Featured
When a failure on a cold-water pipe threatened to shut down the Ambatovy nickel processing plant, Seanergy mobilized a multi-disciplinary team within 36 hours. Diagnostic, clamp engineering, mixed-gas diving and full recommissioning were delivered on schedule, under third-party oversight.
A snapshot of operations delivered across the Indian Ocean, Africa and beyond, organised by region.













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