
New Building Supervision
New Building Supervision
An OSM Thome Site Manager works closely with each yard worldwide, covering every aspect of construction from start to finish. As a result, we can ensure the new building is delivered as expected, in terms of both standards and quality. In addition, an OSM Thome Site Team also monitors the yard’s daily test schedule, to confirm that the equipment used meets specifications and class requirements.
Our department also offers three additional services: third-party dry docking supervision, vessel delivery supervision, and ship repair & maintenance.
WHAT IS INCLUDED IN OUR SERVICES
- The procedure aims to preserve and maintain the ship.
- In addition, it provides security and protection for the environment.
- We also manage the preparation process, from the ship’s arrival at the lay-up facility, through deactivation, to eventual reactivation.
- Finally, it offers a customized solution to meet each owner’s requirements, including suitable locations and a prescribed lay-up program.


EXPERIENCE: OSM Thome has vast experience in complex new building projects, including Shuttle Tankers, Chemical Tankers, LPG & LNG Tankers, Fully Electric/Hybrid Passenger Vessels, Cruise Ships, Expedition Vessels, Container Vessels, RoPax, Car Carriers, Semi-Sub Drilling Units, Drill Ships, FPSO, FSO, AHTS, PSV, Luxury Yachts, Dredgers, Robotic Vessels, Ammonia-enabled vessels, SKDP Class-N Jack-Ups, Storage Platforms, and Workboats.
COMPETENCE: In addition, we maintain a worldwide network of highly experienced maritime professionals, with strong representation in key locations.
OSM THOME IS GLOBAL: Wherever you want your new building constructed, our Site Manager, Hull Inspectors, Paint Inspectors, and Machinery Inspectors will be there.
SHIPYARD SELECTION: We also follow a strict, detailed procedure to select the right shipyard for your project.
ABSOLUTE CONTROL: OSM Thome closely controls the construction of your new building, and reports weekly and monthly — so you don’t need to worry about anything.
ALWAYS ON: As a result, we react extremely fast to any problem during construction, keep each client fully informed, and provide the transparency needed for a successful new build.
PIONEER: In fact, we have our own production prediction tool, which gives owners early warning of challenges on the yard side.
INNOVATIVE: OSM Thome also has expertise in “Green Alternative Fuels” vessels — a new generation that is more economical and environmentally friendly, using fuels such as LNG gas, green ammonia, and electricity.

PRE-CONTRACT: We evaluate the shipyard which you have chosen, and we review the shipbuilding contract (between the shipowner and the shipyard). We review the drawings, equipment makers’ list and technical specifications.
POST CONTRACT: We appraise the design and drawing of the new building. We supervise the site, we report, we commission, and provide dock and sea trial assistance. Finally, we guarantee claim handling.

PRE-CONTRACT: We evaluate your chosen shipyard and review the shipbuilding contract between the shipowner and the shipyard. In addition, we review the drawings, equipment makers’ list, and technical specifications.
POST CONTRACT: Next, we appraise the design and drawings of the new building. Throughout construction, we supervise the site, report regularly, commission the vessel, and provide dock and sea trial assistance. Finally, we guarantee claim handling.
The process to choose the right shipyard for your project is a very detailed procedure that follows 28 assessment steps on the following:
- Previous projects handled
- Quality Management System
- Environmental Management System
- Occupational Health and Safety Management System
- Human Resources Policy
- Workforce
- Design capabilities and software used
- Yard site details
- Storage facilities and yard stocks
- Fabrication and Workshop Facilities
- Erection / Building Berths
- Launching information
- Quayside berths
- Blasting and Painting
- Accommodation outfit
- Classification societies
- Transportation linking
- Materials’ Established Supply Chain Cooperation
- Planning
- Steel production (reordered from “Production steel” — was one of three list items in a row starting with “Production”)
- Pipe production (reordered from “Production pipes”)
- Electrical production (reordered from “Production Electrical”)
- Yard’s working procedures
- Paint production (reordered from “Production painting”, for consistency with the three above)
- Supervisory Staff and Project Team
- Sub-contractors per project and how they are divided
- Quality control
- Supervision facilities

WE DESIGN
Design, Engineering, Testing & Analysis
- Project management, design & plan approval using modern software tools
- Concept evaluations, specifications for new buildings & conversions/refits
- Creation and supervision of model testing
- Mooring analysis, technical feasibility studies and safety studies
WE BUILD
Contract & New Building Supervision
- Commercial and technical negotiations, preparation of documentation and contract design or review
- Building Supervision, supervision during dockings and special surveys
- Follow up on yard and sub-suppliers
WE MANAGE
Systems & Mobilization
- Commissioning
- Safety Case
- Acknowledgement of compliance (SUT)
- Mobilization for operations – work to hand over completed projects to the operational business units in OSM Thome to secure transfer of knowledge

Tankers: For Tanker New Building, we bring experience in engineering consultancy, shipyard selection, new building supervision, project management, conversions, commissioning, and operations.
Offshore Vessels/Units: We have also accomplished a great deal working with Offshore Vessels/Units. As consultants, engineers, or supervisors, our experience covers new building supervision, site supervision, conversions, project management, new building design, design supervision, studies, engineering support and verification, preparation for acknowledgement of compliance, commissioning, and operations.
Cruise, Passenger, and Yacht Vessels: OSM Thome brings many years of experience in this segment, as consultants, engineers, or supervisors in the construction of cruise ships, super yachts, and passenger vessels. In addition, we have taken part in joint developments, project developments, new building specifications, GA developments, new building supervision, site supervision, post-delivery follow-ups, vessel conversions, conversion supervision, and damage repairs.

As green alternative fuels develop, OSM Thome leads the way in building technical expertise — sharing lessons learned with class societies and equipment makers, and improving recently designed systems and newly created test and commissioning procedures. In fact, we already have experience building environmentally friendly vessels, including the following:
Hybrid LNG Gas – Electric Vessel: This vessel’s design meets operational and environmental demands with the most modern solutions available, using LNG fuel and battery power for propulsion, in line with SRtP requirements. As a result, the vessel runs on a hybrid gas-electric/battery system for optimal operation and flexibility, reducing fuel consumption, emissions, noise, and vibration during transit and maneuvering.
Fully Electric/Hybrid Passenger Vessel: This is a diesel-electric vessel with a larger battery that can charge from shore in just 9 minutes. As a result, we see a significant drop in both emissions and engine hours. In addition, electricity costs stay low thanks to the diesel fuel.
Marine Robotic Vessel: This is a unique multi-purpose platform, with custom design and technology features that allow onshore remote control and operation with little or no crew. It also supports the use of alternative fuels such as green ammonia. In addition, it runs an Integrated Automation System and Power Management System, for safe remote operations and cyber-secure communication.

OSM Thome keeps you fully informed every step of the way, providing the transparency you need for a successful new build.
- Weekly Progress Report
- Monthly Progress Reports
- Defects Report & Follow Up Report
- Safety Audits
- Delivery of Final Documents Drawings
- Inspection Test Plans
- Quality Control
Each week and month, we submit progress reports to the owners, covering the status of hull construction, surface preparation, surface coating, outfitting works, machinery, and piping and electrical installations
Information Hub: Questions on New Building Supervision
What is Newbuilding Supervision?
Newbuilding supervision in the maritime sector refers to the process of overseeing the construction of new ships. This includes activities such as the review of plans and specifications, monitoring of the shipyard’s production process, inspection of the finished ship and its systems, and ensuring that the ship is built to industry standards and the owner’s specifications. The goal of new building supervision is to ensure that the ship is delivered on time, within budget, and to the desired quality standards.
With what type of Green Alternative Fuels the OSM Thome Newbuilding Supervision department has knowledge and can supervise such a project?
OSM Thome has experience with LNG, Ammonia-ready, Hydrogen fuel cells, and Methanol. In addition, we give our team continuous training on green fuels.
What are the Green Alternative Fuels in the maritime industry?
The maritime industry is actively exploring green alternative fuels, to reduce greenhouse gas emissions and improve environmental sustainability. Some of the most promising options currently under consideration include:
1. Liquefied Natural Gas (LNG): LNG is a low-emission alternative to traditional heavy fuel oil and diesel. In fact, using LNG as a marine fuel can cut greenhouse gas emissions by up to 25%, while also significantly reducing other air pollutants such as sulphur oxides and nitrogen oxides.
2. Methanol: Methanol is a clean-burning liquid fuel that can be produced from renewable sources, such as biomass or captured carbon dioxide. It also has a high energy density and can be used in existing ship engines with only minor modifications.
3. Hydrogen: Hydrogen is a zero-emission fuel that can be produced from renewable sources, such as wind or solar power. When used in a fuel cell, hydrogen can generate electricity to power a ship’s propulsion system, with only water as a byproduct.
4. Biofuels: Biofuels are made from renewable sources, such as vegetable oils, animal fats, or algae. In addition, they can be blended with traditional marine fuels, or used as a drop-in replacement for heavy fuel oil.
5. Ammonia: Ammonia is a zero-carbon fuel that can be produced from renewable sources, such as wind or solar power. It also has a high energy density and can be used as a direct replacement for heavy fuel oil in ship engines.
Overall, the development and adoption of green alternative fuels in the maritime industry have the potential to significantly reduce greenhouse gas emissions and improve environmental sustainability, while also providing new opportunities for innovation and growth in the industry.
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