Extended Operational and Trade Vocabulary

Drydock and Ship Repair Yards glossary

The ship-repair-yard vocabulary: the repair groups and their graving docks (A&P at Falmouth, Tyne, and Tees), drydocking and conversion services, and the docking-plan, blocking, and afloat-repair terms. Grounds each term in the repair yard or the drydocking operation it belongs to.

373 defined terms.

Showing 250 on this page (page 1 of 2).

A

A&P Falmouth: UK ship repair yard in Falmouth, Cornwall, operating three graving docks including the Queen Elizabeth Dock and serving cruise, naval, and commercial vessels.
A&P Group: British ship repair group with facilities at Falmouth, Tyne, and Tees offering drydocking, fabrication, and conversion services.
A&P Tees: River Tees facility of A&P Group at Middlesbrough providing drydocking, offshore fabrication, and decommissioning support.
A&P Tyne: Wallsend yard of A&P Group on the River Tyne with two drydocks and extensive quayside repair berths.
Abrasive blasting: Surface preparation method propelling abrasive media at high velocity against steel to remove mill scale, rust, and old coatings before paint application.
Active Cathodic Protection: Impressed current corrosion control system inspected, recalibrated, and renewed during drydocking to maintain hull steel below corrosion potential.
Admiralty Yard: Former Sembcorp Marine site in Singapore at Sembawang, integrated into Seatrium after the 2023 merger with Keppel Offshore & Marine.
Aft Peak Tank Inspection: Drydock survey of the aftermost compartment for coating breakdown, structural deformation, and watertight integrity above and below the propeller shaft.
Aioi Works: IHI Corporation shipyard in Hyogo Prefecture, Japan, historically associated with large tanker and bulker construction and repair.
Air Lubrication System Retrofit: Drydock conversion fitting compressors, manifolds, and hull outlets to inject microbubbles under the flat bottom for frictional resistance reduction.
Albwardy Damen: Joint venture ship repair operation in Sharjah, UAE, combining Albwardy Marine Engineering and Damen Shiprepair & Conversion expertise.
Albwardy Marine Engineering: UAE ship repair company based in Sharjah operating floating docks for offshore support vessels and small commercial tonnage.
Alfa Laval PureBallast: UV-based ballast water treatment system.
Alfa Laval PureSOx: Hybrid exhaust gas cleaning system supplied by Alfa Laval for open-loop, closed-loop and combined operation.
Alpha Lubricator Retrofit: MAN Energy Solutions cylinder oil dosing upgrade installed during drydock to reduce lube oil consumption on two-stroke engines.
Ameera Floating Dock: Floating drydock asset historically associated with Drydocks World Dubai supporting Aframax and VLCC repair work.
AmFELS: Brownsville, Texas, shipyard now part of Seatrium, undertaking jackup rig, offshore, and commercial vessel repair on the Gulf Coast.
Annual Survey: Survey required at intervals not exceeding three months either side of each anniversary date of a certificate.
Antifouling Application: Drydock coating step laying down self-polishing copolymer or biocide-free silicone paint to suppress marine growth and preserve hull efficiency.
Antwerp Repair Cluster: Concentration of ship repair operations around the Hansadok and adjoining basins in the Port of Antwerp serving the Rhine-Scheldt trade.
Arrival Condition Survey: An on-arrival inspection of vessel and cargo at the discharge port to record condition for charterers, receivers, or P&I clubs.
ASMAR: Astilleros y Maestranzas de la Armada, the Chilean state naval shipyard headquartered in Talcahuano with additional sites at Valparaíso and Punta Arenas.
ASRY: Arab Shipbuilding and Repair Yard in Sitra, Bahrain, established 1977 with four graving docks and four floating docks for VLCC and offshore work.
Astilleros Cantábricos: Spanish ship repair group active on the Cantabrian coast with yards historically focused on fishing, offshore, and small commercial tonnage.
Astilleros de Cadiz: Navantia yard in southern Spain historically building offshore platforms and naval vessels.
Astilleros Las Palmas: Canary Islands ship repair company operating in the Port of Las Palmas serving the West African and mid-Atlantic trades.
Astilleros Murueta: Basque shipyard at Murueta and Erandio constructing dry cargo and multipurpose vessels.
Atlântico Sul: Estaleiro Atlântico Sul located at the Suape industrial complex in Pernambuco, Brazil, built for VLCC and Suezmax construction and repair.
Auxiliary Engine Overhaul: Drydock workscope covering generator engine top-end, bottom-end, turbocharger, and cooler refurbishment under controlled conditions ashore.

B

Babcock Devonport: UK shipyard responsible for Royal Navy submarine refits and surface ship maintenance.
Babcock Rosyth: Scottish shipyard where the Queen Elizabeth-class aircraft carriers were assembled.
BAE Systems Henderson: Naval and commercial shipyard in Western Australia performing surface combatant sustainment and conversion.
BAE Systems Jacksonville: Florida ship repair yard with floating drydocks supporting US Navy surface combatants and commercial tonnage on the East Coast.
BAE Systems Norfolk: Virginia ship repair facility in the Norfolk Naval shipbuilding cluster servicing US Navy and Military Sealift Command vessels.
BAE Systems San Diego: Pacific Coast ship repair yard with two floating drydocks supporting Pacific Fleet surface combatants and auxiliaries.
BAE Systems Williamstown: Historic Victorian shipyard on Port Phillip Bay, Australia, used for naval combatant construction and repair.
Bahrain Slipway: Smaller Bahraini repair facility complementing ASRY for fishing and coastal vessels.
Ballast Tank Coating Renewal: Major drydock workscope removing failed epoxy from segregated ballast tanks and applying a new system per PSPC IMO MSC.215(82).
Ballast Water Exchange Record: Pre-docking documentation evidencing compliance with the BWM Convention during the voyage to the repair yard.
Ballast Water Management System Retrofit: Drydock installation of treatment skids, piping, sample points, and control panels to satisfy the IMO D-2 standard.
Bath Iron Works: General Dynamics shipyard at Bath, Maine, building Arleigh Burke class destroyers for the US Navy.
Becker Mewis Duct: Pre-swirl wake-equalizing duct with internal fins, developed by Becker Marine Systems, fitted ahead of the propeller.
Beihai Yard: COSCO Shipping Heavy Industry repair and conversion facility in Guangxi, China, with deepwater berths and large drydocks.
Below Waterline Survey: External hull inspection covering plating, appendages, sea suctions, and the propeller, performed during drydock by class surveyors.
Benoi Yard: Former Keppel Shipyard facility in Singapore now part of Seatrium, with multiple drydocks for offshore and tanker work.
Bilge Keel Inspection: Drydock check of welded longitudinal stabilizing strakes for cracks, deformation, and weld integrity, with renewal as needed.
BIMCO REPAIRCON: Standard ship repair contract published by BIMCO setting out terms for yard and owner obligations in repair contracts.
Birkenhead Naval Dockyard: Historic Cammell Laird site on the Mersey, England, with the Wet Basin and graving docks used for naval and commercial repair.
Boat Lift: Mechanical structure that raises or lowers vessels between water levels, alternative to lock staircases.
Bohai Shipbuilding: CSSC yard at Huludao, Liaoning, building tankers, bulkers, and naval vessels.
Bollinger Amelia: Louisiana shipyard within the Bollinger network serving offshore supply vessel construction and repair.
Bollinger Houma: Bollinger Shipyards facility in Houma, Louisiana, providing aluminum and steel newbuilds and repair on the Intracoastal Waterway.
Bollinger Larose: Bollinger drydocking facility in Lafourche Parish, Louisiana, supporting workboats and offshore service vessels.
Bollinger Lockport: Bollinger Shipyards headquarters and yard at Lockport, Louisiana, with floating drydocks and a marine railway.
Bollinger Mississippi: Former VT Halter Marine facilities in Pascagoula and Moss Point acquired by Bollinger in 2022.
Bollinger Shipyards: Louisiana-based US builder of patrol craft, OPCs for the Coast Guard, and offshore vessels.
Bow Modification: Drydock retrofit altering bulbous bow geometry or fitting a slender vertical stem to match new operating profiles.
Bow Thruster Inspection: Drydock survey and overhaul of the transverse tunnel thruster, including gearbox seal renewal, blade pitch verification, and grid inspection.
Brunvoll Sterntube Seal: Norwegian sealing system supplied by Brunvoll for shaft penetrations, inspected and renewed during drydock as required.
Bulkhead Crack Renewal: Drydock structural repair removing and rewelding cracked stiffeners and plating on watertight or oiltight subdivision bulkheads.

C

Cadiz Drydock: Large graving dock at the Navantia Cádiz facility used for cruise ship repair and major commercial conversion projects.
Caisson Gate: Hollow steel structure used to close the entrance of a graving dock, ballasted down with water to seal and pumped out to float clear.
Cammell Laird: Birkenhead shipbuilder formed in 1903 from the union of Cammell of Sheffield and Laird Brothers, the latter founded 1828.
Cargo Tank Coating Renewal: Drydock workscope removing failed lining from chemical or product tanker tanks and applying phenolic epoxy or zinc silicate system.
Cathodic Protection Anode Renewal: Drydock replacement of sacrificial aluminum or zinc anodes welded to the hull, rudder, and sea chests.
Cebu Shipyard and Engineering Works: Tsuneishi-affiliated repair yard in Cebu, Philippines, with multiple drydocks for bulker and tanker repair.
Cemre Shipyard: Turkish builder and repairer in the Yalova region producing fishing vessels, ferries, and offshore support craft.
Chengxi Shipyard: CSSC subsidiary on the Yangtze building bulk carriers and ship-to-ship transfer vessels.
China Merchants Heavy Industry: CMHI shipbuilding group with major facility at Haimen, Jiangsu.
China Shipbuilding Industry Corporation: Former CSIC, the northern Chinese state shipbuilder merged with CSSC in 2019.
China State Shipbuilding Corporation: State-owned shipbuilder, parent of CSSC Haizhuang offshore wind turbine business.
Class Renewal Survey: Five yearly comprehensive class survey equivalent to Special Survey.
Coating Inspection: Drydock NACE or FROSIO inspector verification of paint film thickness, holiday detection, and adhesion across applied systems.
Common Structural Rules: IACS harmonized hull rules for bulk carriers and oil tankers, effective 1 July 2015 for new build contracts.
Conrad Shipyard: Louisiana shipbuilder and repairer operating at Morgan City and Amelia for inland and Jones Act tonnage.
Continuous Hull Survey: A class arrangement under which special survey items are spread across a five-year cycle rather than concentrated in a single attendance.
Conversion Project: Major drydock undertaking such as FPSO conversion, FSRU conversion, or container-to-car carrier conversion involving extensive structural work.
Cosco Shipping Heavy Industry Dalian: COSCO group ship repair and offshore yard in Liaoning, China, with multiple drydocks and conversion experience.
Cosco Shipping Heavy Industry Guangdong: COSCO repair yard in southern China serving the South China Sea and Southeast Asian trades.
Cosco Shipping Heavy Industry Nantong: COSCO repair and conversion yard on the Yangtze in Jiangsu, China, undertaking VLCC and large bulker work.
Cosco Shipping Heavy Industry Zhoushan: Major COSCO ship repair complex in Zhejiang, China, with the world's largest annual VLCC repair throughput in some years.
Cradle System: Underwater cradle, often part of a synchrolift, on which the vessel rests during lifting clear of the water for repair.
Crew Habitability Inspection: Drydock review of MLC accommodation arrangements following structural alterations or major refits.
CSEW: Cebu Shipyard and Engineering Works abbreviation, used to refer to the Tsuneishi-affiliated Philippine repair operation.
CSIC: China Shipbuilding Industry Corporation, merged with CSSC in 2019.
CSSC Guangzhou Shipyard International: Major CSSC newbuild and repair yard in Guangzhou, China, serving the South China shipping market.
CSSC Huangpu Wenchong: CSSC subsidiary on the Pearl River with newbuild and repair capability for medium tonnage and naval craft.
Curacao Drydock Company: Caribbean repair yard at Willemstad, Curaçao, with three graving docks serving Caribbean and Atlantic traffic.

D

Daewoo Shipbuilding and Marine Engineering: South Korean shipbuilder, now Hanwha Ocean, with a long history of LNG and LPG carrier construction including membrane LNG vessels.
Daily Repair Rate: Pricing structure under which the yard invoices a fixed currency amount per day of yard stay plus reimbursable items.
Damen Naval Vlissingen: Naval shipbuilding business of Damen at Vlissingen, Netherlands, undertaking frigate construction and naval refits.
Damen Shiprepair Amsterdam: Damen Group ship repair yard in the Port of Amsterdam with drydocks and quayside repair berths.
Damen Shiprepair Antwerp: Damen Group ship repair facility in the Port of Antwerp serving the North Sea and Scheldt trades.
Damen Shiprepair Brest: Damen ship repair yard in Brest, France, servicing tugs, offshore vessels, and naval ships.
Damen Shiprepair Cadiz: Damen Group ship repair yard in Cádiz, Spain, formerly Astilleros de Cádiz operations.
Damen Shiprepair Curaçao: Damen-operated Caribbean repair yard at Willemstad with three graving docks and ample quayside.
Damen Shiprepair Dunkerque: Northern French Damen ship repair yard with the Form 7 large graving dock.
Damen Shiprepair Harlingen: Northern Dutch Damen yard at Harlingen for repair and conversion of smaller vessels.
Damen Shiprepair Rotterdam: Damen ship repair yard at Schiedam-Rotterdam with multiple drydocks for tanker, container, and gas carrier repair.
Damen Shiprepair Sharjah: Albwardy Damen joint venture in Sharjah, UAE, providing repair and conversion services in the Arabian Gulf.
Damen Shiprepair Vlissingen: Damen ship repair yard in Vlissingen-Oost, Netherlands, with multiple drydocks for large commercial tonnage.
Damen Shipyards Galați: Damen Group shipyard in Romania on the Danube undertaking newbuilds and conversion of offshore and commercial vessels.
Damen Shipyards Group: Dutch shipbuilder, major supplier of ASD, RSD, ATD, and Stan Tug series.
Decarbonization Retrofit: Drydock works adapting a vessel for lower-carbon operation such as wind-assist installation or dual-fuel conversion.
Demineralized Water Wash: Pre-coating freshwater rinse of blasted steel to reduce soluble salt contamination below specified ppm thresholds.
Detyens Shipyards: South Carolina ship repair yard at the former Charleston Naval Shipyard with multiple drydocks for commercial and government work.
Deutsche Werft: Historic German shipyard name associated with Hamburg ship repair operations now integrated into other groups.
Diesel Generator Overhaul: Drydock ashore refurbishment of auxiliary engines, including crankshaft polishing, bearing renewal, and turbocharger refurbishment.
Docking Plan: Engineering drawing showing the keel and bilge block positions, services connections, and access arrangements for the vessel in dock.
Doosan Engine: Korean licensed builder of MAN B&W two-stroke engines, renamed KSE in 2019 after sale to HD Hyundai.
DP World Maritime Services: DP World division including Drydocks World Dubai, ASRY Bahrain stake, and related repair and conversion assets.
Drydock Arrival Inspection: Yard and surveyor walk-through on arrival to record condition, agree workscope additions, and authorize commencement of work.
Drydock Block Plan: Detailed layout of keel blocks and bilge blocks placed on the dock floor to support the vessel during dewatering and works.
Drydock Cycle: Five-year survey cycle within which two drydockings are normally required for vessels less than fifteen years old per IACS UR.
Drydock Departure Inspection: Final check before flooding-up confirming completion of underwater works, coatings, anodes, and removal of staging.
Drydock Gate: Closure element of a graving dock, either a sliding caisson, hinged gate, or flap gate that seals the entrance.
Drydock Pricing: Combination of fixed day rate, dock entry charge, services, and workscope-based items that determines yard invoice value.
Drydock Workscope: Detailed specification of repair, survey, and conversion items to be executed during the yard stay.
Drydocks World Dubai: Dubai-based repair complex within DP World operating three graving docks and floating docks up to VLCC capacity.
Dual-Fuel Conversion: Drydock retrofit installing gas fuel tanks, double-walled piping, and engine modifications for LNG, methanol, or ammonia operation.
Dunkerque Form 7: Large graving dock in Dunkirk, France, used by Damen Shiprepair Dunkerque for cruise ship and ULCC work.

E

Eastern Shipbuilding Group: US yard at Panama City, Florida, prime contractor for Coast Guard Offshore Patrol Cutters.
Ecochlor BWMS: Filtration plus chlorine dioxide ballast water treatment system retrofitted under D-2 compliance projects.
EEXI Retrofit: Drydock or operational adjustment to satisfy the Energy Efficiency Existing Ship Index requirement under MARPOL Annex VI Chapter 4.
EISA: Estaleiro Ilha S.A., Brazilian shipyard at Rio de Janeiro.
Elefsis Shipyards: Greek ship repair yard at Elefsis on the Saronic Gulf, redeveloped in recent years under new ownership.
ENA Shipbuilding: Japanese shipbuilder at Onomichi-area operations producing handysize and ultramax bulk carriers.
Engine Power Limitation: Compliance measure under EEXI restricting maximum continuous rating through a physical limiter or software lock-out.
Engine Room Refit: Comprehensive drydock workscope covering main engine, auxiliary engines, boilers, switchboards, and piping renewals.
ERMA FIRST BWMS: Greek-designed ballast water treatment system using filtration and electrochlorination commonly retrofitted in drydock projects.
Ezo Group: Reference grouping of medium-size Japanese repair yards; specific facility names should be verified against current corporate structures.

F

Falmouth Docks: A&P Falmouth facility with the Queen Elizabeth Dock, the largest commercial drydock in southern England.
Ferrol Shipyard: Navantia Ferrol facility in Galicia, Spain, building frigates and large naval vessels with associated repair work.
Final Inspection: Joint owner, class, and yard walk-through confirming completion of work and signing off the repair specification.
Fincantieri Ancona: Italian Fincantieri shipyard on the Adriatic coast producing cruise ships and supporting cruise repair work.
Fincantieri Castellammare di Stabia: Fincantieri shipyard near Naples producing special vessels and supporting repair operations.
Fincantieri Genoa Sestri: Fincantieri shipyard at Genoa Sestri Ponente producing cruise ships and undertaking repair and conversion.
Fincantieri Marghera: Fincantieri shipyard at Venice Marghera producing large cruise ships with adjacent repair quays.
Fincantieri Monfalcone: Fincantieri shipyard in Friuli-Venezia Giulia, Italy, the group's principal cruise newbuild yard.
Fincantieri Palermo: Sicilian Fincantieri yard specializing in cruise ship repair, conversion, and refit projects.
Fincantieri Riva Trigoso: Italian shipyard producing FREMM and PPA frigates for the Marina Militare and export.
Five-Year Special Survey: Major class renewal survey conducted on or before each fifth anniversary of the ship's date of build.
Floating Caisson Dock: Floating drydock configuration in which the entrance is sealed by a floating caisson rather than a sectional structure.
Floating Drydock: U-shaped self-buoyant dock that submerges to accept a vessel and is then deballasted to lift the vessel clear of the water.
Forgacs Cairncross: Australian ship repair and engineering business at Cairncross Dockyard in Brisbane operating a large graving dock.
Foss Shipyard: Foss Maritime yard in Seattle on the Lake Washington Ship Canal providing repair for tugs, barges, and small commercial vessels.
FPSO Conversion: Drydock and quayside project transforming a tanker hull into a floating production, storage, and offloading unit.
Freshwater Wash: Drydock hull rinse with potable or low-conductivity water to remove salts before coating application.
FROSIO Inspector: Norwegian certified coating inspector recognized for newbuild and repair work.

G

Galati Shipyard: Damen-owned Romanian yard on the Danube building ferries, OPVs, and offshore support vessels.
Gas-free certificate: Certificate before hot work in tanks.
Gemak Group: Turkish ship repair operator in the Tuzla cluster offering drydocking and conversion for tankers, bulkers, and container ships.
General Dynamics Bath Iron Works: General Dynamics subsidiary in Bath, Maine, focused on US Navy destroyer construction and repair.
General Dynamics NASSCO: US shipbuilder at San Diego, the only large commercial newbuild yard on the West Coast.
Geoje Island: Korean island hosting Hanwha Ocean and Samsung Heavy Industries shipyards, two of the world's largest shipbuilding and repair sites.
Gisan Shipyard: Turkish builder in the Tuzla area producing tankers, chemical carriers, and offshore vessels.
Goheung: Reference area near Geoje associated with Samsung Heavy Industries operations.
Graving dock: Land-recessed drydock used for hull coating and structural work.
Grit recovery: Reclamation of expendable abrasive by sweeping and screening, where regulations permit reuse.

H

Halong Shipyard: Vietnamese shipyard in Hạ Long Bay historically part of the Vinashin group and active in bulker and special vessel construction.
Hanjin Subic: Former Philippine yard at Subic Bay built by Hanjin Heavy Industries and bankrupt in 2019.
Hansadok: Repair drydock in the Port of Antwerp used historically by various Antwerp ship repair operators.
Hanwha Ocean: Korean shipbuilder, former Daewoo Shipbuilding and Marine Engineering.
Harbor Island Yard: Vigor Industrial facility on Harbor Island in Seattle, Washington, providing ship repair and barge construction.
Harland & Wolff Belfast: Historic Northern Ireland shipyard with the Belfast Building Dock and Thompson Dock, undertaking newbuild and repair work.
HD Hyundai Heavy Industries: South Korean shipbuilder constructing FPSOs, LNG carriers, FLNGs and heavy-lift conversions.
Higaki Shipbuilding: Japanese shipbuilder in the Imabari area producing small to medium dry cargo vessels.
Hold Cleaning: Final stage operation removing cargo residue before vessel release.
Hong Kong United Dockyards: Joint venture ship repair operator at Tsing Yi, Hong Kong, established between Hutchison and Swire interests.
HUD: Hong Kong United Dockyards acronym used for the Tsing Yi repair yard.
Hudong-Zhonghua Shipbuilding: CSSC subsidiary at Shanghai, leading Chinese builder of LNG carriers.
Hull cleaning: In-water hull cleaning subject to biofouling rules.
Hull Treatment Survey: ESP-related internal survey of bulk carrier and tanker structures supporting drydock condition assessment.
Hyundai Mipo Dockyard: HHI group yard specializing in medium range tankers.
Hyundai Samho Heavy Industries: HHI group yard building larger vessels.

I

IACS Member Society: Recognized class society such as ABS, BV, ClassNK, DNV, KR, LR, RINA, CCS, IRS, CRS, PRS, RS that sets drydock requirements.
IHI Corporation: Japanese heavy industries group that developed the SPB self-supporting prismatic IMO Type B containment system.
Imabari Shipbuilding: Largest Japanese shipbuilder, headquartered in Ehime.
Immobilization Plan: Document setting out procedures and indemnities for periods when main engine and steering are unavailable in dock.
IMO 2020 Sulphur Cap: Limit of 0.50 percent sulfur in marine fuel outside ECAs.
Imo D-2 Discharge Standard: Ballast water performance standard mandating onboard treatment systems, retrofitted during drydock for existing vessels.
Imo MEPC.297(72): IMO resolution providing the implementation schedule and renewal survey trigger for BWMS retrofits.
In-water survey: Class survey of the underwater hull in lieu of dry docking.
Inland Marine Repair: Drydocking and repair of barges, towboats, and inland tankers on US and European inland waterways.
Inspection by Class Surveyor: Attendance of recognized class society surveyors during drydock to credit periodic surveys and approve repairs.
Intermediate Survey: Class survey between Special Surveys.

J

Jiangnan Shipyard: Shanghai shipbuilder under CSSC, large container and LNG builder.
Jiangsu New YZJ: Yangzijiang Shipbuilding new yard at Taicang adding bulker, tanker, and gas carrier capacity.
Jiangsu Yangzijiang Shipbuilding: Major Chinese private shipbuilder with multiple yards on the Yangtze undertaking new construction and limited repair.
JMU Ariake: Japan Marine United shipyard at Ariake, Kumamoto, building large bulkers, tankers, and container ships.
JMU Kure: Japan Marine United shipyard at Kure, Hiroshima, building tankers and ore carriers, formerly an IHI site.
JMU Maizuru: Japan Marine United yard at Maizuru historically active in special vessel construction.
JMU Tsu: Japan Marine United shipyard at Tsu, Mie Prefecture, building bulkers, tankers, and special vessels.
JMU Yokohama: Japan Marine United yard delivering destroyers and amphibious ships for the JMSDF.
Jurong Shipyard: Singapore yard part of Sembcorp Marine, building offshore and conversion projects.

K

Kawasaki Heavy Industries Kobe: KHI shipyard at Kobe, Japan, building submarines and merchant ships with associated repair capacity.
Kawasaki Heavy Industries Sakaide: KHI shipyard at Sakaide in Kagawa, Japan, building LPG carriers, bulkers, and tankers.
Keppel Benoi: Former Keppel Shipyard Benoi facility now integrated into Seatrium following the 2023 merger.
Keppel Gul: Former Keppel Shipyard Gul yard now under Seatrium operating control.
Keppel Shipyard: Singapore ship repair and conversion operator historically with Benoi, Tuas, and Gul yards, now part of Seatrium.
Keppel Tuas: Former Keppel Shipyard Tuas facility now operated within the Seatrium group.
Kingdom of Bahrain Shipyard: Reference to ASRY as the Bahraini national repair yard.
Kobelco Seal: Stern tube sealing system supplied by Kobelco, inspected and renewed during drydock as part of shafting maintenance.
Kongsberg Pre-Swirl: Energy saving device installed forward of the propeller during drydock to redirect inflow and improve propulsive efficiency.
Krystallon Scrubber: Wartsila Hamworthy Krystallon exhaust gas cleaning brand retrofitted under IMO 2020 compliance projects.

L

Lamprell: UAE-based offshore fabricator and repairer with facilities at Hamriyah and Sharjah serving the oilfield equipment market.
Larose Yard: Bollinger facility in Larose, Louisiana, supporting workboat and offshore vessel construction and repair.
Lianyungang COSCO: COSCO Shipping Heavy Industry repair yard at Lianyungang in Jiangsu, China.
Lloyd Werft Bremerhaven: German cruise ship specialist repair and conversion yard on the Weser, with several large graving docks.
Lockport Yard: Bollinger Shipyards headquarters yard at Lockport, Louisiana, with floating drydock and marine railway.
Lorient Naval Yard: Former STX France naval shipbuilding facility at Lorient producing surface combatants for the French Navy and export customers.
Lump Sum Contract: Repair contract in which the yard agrees to complete a defined workscope for a fixed total price.

M

Main Engine Overhaul: Drydock workscope covering low-speed two-stroke engine piston, liner, bearing, and exhaust valve refurbishment.
Maintenance Drydock: Routine drydocking aligned with the class survey cycle focused on hull treatment, anode renewal, and underwater fittings.
MAN B&W ME-GI Conversion: Drydock retrofit converting two-stroke engines to gas injection operation using high-pressure LNG.
MAN B&W ME-LGIA Conversion: Drydock retrofit enabling ammonia operation on MAN Energy Solutions two-stroke engines.
MAN B&W ME-LGIM Conversion: Drydock retrofit enabling methanol operation on MAN Energy Solutions two-stroke engines.
Marghera Shipyard: Fincantieri shipyard at Venice Marghera, Italy, producing large cruise ships.
Marine Hydraulics International: Norfolk, Virginia, ship repairer specializing in commercial and government vessel repair on the East Coast.
Marine Railway: Inclined-rail haulout system on which a cradle carrying the vessel is winched out of the water for repair.
Marsa Construction: Reference Turkish builder in the wider Tuzla cluster, with specific scope subject to verification.
Marugame Shipyard: Imabari Shipbuilding's principal yard at Marugame, Kagawa, Japan, building large bulkers, tankers, and container ships.
Mediterranean Cluster: Concentration of repair yards across Spain, France, Italy, Greece, and Turkey serving Mediterranean and short-sea traffic.
Mewis Duct: Pre-swirl wake-equalizing duct developed by Friedrich Mewis and Becker Marine Systems, widely retrofitted on tankers and bulkers.
Meyer Turku: Finnish shipbuilder at Turku, the Meyer group's cruise yard for large luxury cruise ships.
Meyer Werft Papenburg: German Meyer Group cruise ship newbuild yard on the Ems River with limited repair work.
Mitsubishi Heavy Industries Kobe: Japanese shipyard building Soryu and Taigei-class submarines.
Mitsubishi Heavy Industries Nagasaki: Japanese yard building destroyers and frigates for the JMSDF.
Mitsubishi Heavy Industries Shimonoseki: MHI shipyard at Shimonoseki, Yamaguchi, building ferries, special vessels, and government craft.
Mitsubishi Heavy Industries Yokohama: MHI Yokohama works historically active in ship repair and conversion in Tokyo Bay.
Mitsui E&S Tamano: Japanese shipbuilder at Tamano, Okayama, building tankers and special vessels with related repair work.
Monfalcone Shipyard: Fincantieri Monfalcone is the group's principal cruise ship newbuild yard on the Italian Adriatic coast.
Mooring Equipment Inspection: Examination of winches, ropes, and stoppers.
Morgan City Yard: Conrad Shipyard operations at Morgan City, Louisiana, producing barges, ferries, and workboats.

N

N-KOM: Nakilat Keppel Offshore & Marine joint venture operating the Erhama Bin Jaber Al Jalahma Shipyard at Ras Laffan, Qatar.
Nagasaki Shipyard: Mitsubishi Heavy Industries shipyard at Nagasaki, Japan, historically active in cruise and naval shipbuilding.
Namura Shipbuilding Imari: Japanese shipbuilder at Imari, Saga Prefecture, producing very large tankers, bulkers, and container ships.
Nantong Yard: Reference shorthand for the COSCO Shipping Heavy Industry repair facility at Nantong, Jiangsu.
NASSCO Norfolk: General Dynamics NASSCO ship repair facility in Norfolk, Virginia, supporting US Navy and commercial customers.
NASSCO San Diego: General Dynamics NASSCO shipyard in San Diego, California, building commercial vessels and repairing US Navy ships.
Navantia Cádiz: Navantia ship repair yard in Cádiz, Spain, with large drydocks for cruise and commercial conversion.
Navantia Cartagena: Navantia shipyard at Cartagena, Spain, building submarines and undertaking naval refits.
Navantia Ferrol: Spanish shipyard producing F-100 frigates, Juan Carlos I, and BAM offshore patrol vessels.
Navantia Puerto Real: Navantia facility at Puerto Real near Cádiz with the large graving dock used for cruise and offshore conversion.
NDT Inspection: Drydock non-destructive testing using ultrasonics, magnetic particle, dye penetrant, or radiography to verify weld integrity.
Newport News Shipbuilding: Huntington Ingalls yard at Newport News, Virginia, builder of US Navy aircraft carriers and submarines.
Norfolk Naval Shipyard Region: Hampton Roads cluster of US Navy and commercial repair yards on the Elizabeth River, Virginia.
Norfolk Ship Repair Cluster: Concentration of US East Coast yards including BAE Systems Norfolk, NASSCO Norfolk, and MHI Norfolk.

O

Onex Elefsis Shipyard: Greek ship repair yard at Elefsis under Onex Shipyards & Technologies ownership.
Onomichi Dockyard: Japanese shipbuilder at Onomichi, Hiroshima, building bulkers and tankers.