Specialized in the naval construction and repairs since 2001
Monday - Friday

8 am - 10 pm



Freeport Zone n°11

Mer Rouge - Port Louis Mauritius

Chantier Naval de l'Océan Indien

Located in Port Louis, Mauritius’s capital, CNOI Shipyard (Chantier Naval de l'Ocean Indien) is one of the leading ship-repair and ship-building yards in the Indian Ocean. Mauritius is situated at a strategic point, whereby the island figures on the route of various merchant navies. The island is close to significant fishing grounds as it lies in the middle of the Indian Ocean and the Antarctic Ocean.

Our Works

Read Boilermaking (repair)

All boilermaking operations (steel and aluminum) - Repair on board and in the workshop - Multi-skilled team working with the other trades

New Construction

Construction de coques acier ou aluminium - Chaudronnerie - Réalisation des structures acier des ateliers


Repair of all brands of engines up to 8,000 hp.


Intervention on hydraulic, compressed air and gasoil circuits


New assembly and edge repair :


For several years now, the CNOI has been working on a vast expansion project. This began in the course of 2019 with the acquisition of more than one additional hectare, increasing the working area from 4.5 to 5.6 hectares. A reorganization is therefore underway with the creation of new workshops: - new construction workshop of 1300m2 - heavy mechanical workshop of 410m2 - electrical/refrigeration workshop of 380m2 - workshop and storage with 200m2 insulation A new sheet metal park will also be built, the stores and storage areas will be expanded, new offices will be built for administrative staff as well as for ship owners. This project will be concluded with the acquisition of the world?s largest belt elevator. In the second quarter of the year 2020, the CNOI placed an order with the Italian company CIMOLAI for a 1500t elevator. This new lifting tool will replace the current synchrolift and will allow up to 5 ships to be dewatered simultaneously on the new berth.

The shipyard


CNOI is the "one-stop shop" for ship repair in the Indian Ocean. Ship owners who come to the shipyard to make their technical calls benefit from the advantages offered by Mauritius: supplies, air and sea services and the facilities of the "seafood hub".


The shipyard is used to accommodate tuna purse seiners with a storage capacity between 700 and 2200 tons and a length varying between 70 and 115 meters.

French Navy

Several years ago, the CNOI signed a contract with the French Navy for the maintenance and repair of its frigates based in Reunion Island.


New ship building represents a significant part of the activity on the shipyard. Thanks to international quality standards and working in accordance with the requirements of ship classification societies (Bureau Veritas, APAVE...), the CNOI's clients are mainly French (based in Reunion Island and Mayotte), Madagascan, Australian and Mauritian.

Since the creation of the site

31 ships left the CNOI workshops. Two other achievements have marked its history. A total overhaul of a 39-meter aluminum passenger ship (Mayotte), the jumboization of a longliner, with an 8.2-meter extension (Australia).

Our Products

The strength of CNOI

The strength of CNOI resides in its multitude of departments allowing us to propose all types of repairs, constructions or fittings required on ships.

Franck Piriou, General Director

Our figures


direct employment


ships have left the workshops

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Investement for 2020/2021

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passing boat in its dry dock


Le Président Seychellois vient voir ses bateaux à CNOI

The President Of Seychelles visits his vessels at CNOI

Malgré un emploi du temps bien rempli pour sa visite officielle à Maurice, le Président

l’élévateur à sangles le plus puissant au monde

the most powerful webbing elevator in the world

Après onze années de bons et loyaux services, l’élévateur à bateaux “Synchrolift”, construit par Schiess

L’Atsantsa, 12 ans après…

Atsantsa, 12 years after...

Il aura fallu attendre 12 ans avant de revoir l’Atsantsa au Chantier pour des réparations.

Une barge de travail pour les plongeurs d’ImmerSub

A work barge for ImmerSub divers

Bien connue à C.N.O.I., où ses plongeurs interviennent régulièrement, notamment lors de la mise à

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