DREDGING PROFILE

ROTAWN ENERGY AND LOGISTICS

Rotawn Energy and Logistics Services Ltd was established in 2007 as an indigenous Nigerian

company offering tailor made solutions to the Oil &Gas, Maritime and Government Sectors.

These solutions and services cover marine solutions, dredging, construction and

procurement & logistics. Rotawn's dredging division provides services which include,

shoreline protection, sand filling, stock piling, channel clearing, and land reclamation

We have invested heavily in our staff and strategic alliances. These alliances are bonded by

a single focus, to develop skills & offer superior services within the company around industry

standard policies.

Our Mission

We will continue to execute and provide solutions utilizing industry best practices and

equipment in order to meet and surpass our clients’ expectations. Our solutions are met

with the highest standards and are value driven

Our Vision

To be the long–lasting partner of choice to our clients and become the industry leader for

providing turn–key solutions to our clients

Our Values

We are proud to epitomise:

Uncompromising Integrity – Professional Competence – Safety – Highest Quality Standards –

Cost Effectiveness

Technical Expertise

We employ diverse, experienced management executives and consultants who

understand the industry of our clients, related industry issues, and have an in–depth

understanding of business applications.

DREDGING PROFILE ABOUT US

DREDGING PROFILE OUR SERVICES

SHORELINE PROTECTION

Rotawn constructs and maintains shore protection

structures including jetties, groins, seawalls,

breakwaters, and bulkheads in order to protect the

coastline and the navigable water channels that

can reach down to 100 meters. Early shore

protection measures included jetties and groins

constructed perpendicular to the shoreline for the

purpose of lessening the impacts of erosion by

reducing the rate of sediment transport along

vulnerable coastlines.

Rotawn has invested heavily in procurement of world

class next generation marine equipment for secured

shoreline protection.

Our clients recognize our first class professional mode

of operation & safety measures applied in ensuring

that we don’t end up causing erosion instead of

protecting the shorelines.

DREDGING PROFILE OUR SERVICES

SAND FILLING

As an industry leader in our chosen fields, we

have gone beyond the limitations of the private

sector to the public sector.

We ensure that the appropriate CSD & Booster is

used to optimize resources as well as meet up

with client project deadline.

This in turn is achieved by availability of spares

and parts ranging from suction/discharge pipes

to all hydraulic & mechanical arts.

With our track record, we have shown that we

can deliver any sand filling job, within record

time.

DREDGING PROFILE OUR SERVICES

SAND STOCK PILING

The construction industry relies heavily on hydraulic

marine sands for part of its aggregate mix in the

production of concrete. Sand grain of different sizes

and composition are required by builders and

contractors to execute their projects.

We have the capability of dredging various sand

stock pile types to meet the needs of the

construction industry. Strategic stockpiles have been

pumped for various ventures.

This service is central to our activities. The Sand stock

piling activities is backed up by adequate feasibility

studies and economic viability tests.

CHANNEL CLEARING

As part of our dredging services, Rotawn has

also specialized in canalization with new fields

of tasks which include deepening, widening

and maintenance of harbors and waterways,

dredging access channels, sand wave removal

and reduction of canalization blockage.

Canalization requires absolute precision and for

this reason, our operations are carried out with

high precision and the very highest standards of

safety, quality and environmental care, in line

with the demands of the oil and gas operators.

With our fleet of equipment, we offer credible,

tested and professional services

DREDGING PROFILE OUR SERVICES

DREDGING PROFILE OUR SERVICES

LAND RECLAMATION

Rotawn with its partner Kariala Konsult has acquired

extensive, worldwide experience in geotechnical and

geophysical site investigations, surveys, studies,

design, specification and supervision for:

Coastal and port developments including land

reclamation and beaches

Maintenance of port approach and navigation

channels, turning basins and berths

Civil works such as immersed tube tunnels,

pipelines and outfalls

Minerals extraction

Beach nourishment for the purposes of coastal

defense.

The global nature of Rotawn’s activities has provided

comprehensive experience of the wide variety of

dredging methods and types and sizes of dredging

equipment. Frequently, the reclamation (or beach

nourishment) works are accompanied by structures

such as revetments, to stabilize them once in place.

Again, Rotawn’s expertise in these areas is

unparalleled.

Rotawn also has experience of the survey equipment

and methods used for monitoring and controlling

dredging, reclamation and spoil disposal operations

as well as for the determination of quantities for

payment. We utilize state-of-the art numerical

modelling software, both developed in-house and

commercially available software, to model the

potential impacts of the dredging and reclamation

works on the wider marine environment, based on a

simulation of the hydrodynamic and sediment

regimes in and around dredging and reclamation

works.

DREDGING PROFILE OUR SERVICES

Our expertise in this field includes:

Design, specification and supervision of dredging and reclamation works

Dredging methods and equipment

Navigation studies and maritime risk assessment

Numerical hydrodynamic and sediment transport modeling

Siltation studies

Extraction of sands and gravels

Reclamation design

Ground treatment and monitoring instrumentation

Bunds and revetments

Environmental impact studies

Contaminated sediments and spoil disposal studies.

DREDGING PROFILE EQUIPMENT

In our plant yard, we have the following equipment but are not limited to:

22 X 20 CS Dredger

18 x 18 CS Dredger

12 x 12 CS Dredger

Pay loaders

Excavators

Bull Dozers

Trailer Heads

Short Dump Trucks

Long Dump Trucks

Utility Vehicles

Low Beds

Flat Beds

Self-Loaders

Crane

Concrete Mixers

Flood Lights

CLIENT SCOPE OF WORK LOCATION CONTRACT

VALUE (NAIRA)

PROJECT

MANAGER

CONTACT

DETAILS

LWW - For

Shell and

Daewoo

River crossing

(sweeping) under

water pipe laying.

Sweeping depth 15

meters, dredging

distance 400 meters

in four different

locations.

Bomadi,

Bayelsa

92,000,000.00

Mr. Fred

Arentatcha

Mrakpor

081440015689

PRESLYN -For

Nest

Oil/NPDC

Dredging/Sweeping

OML 42

Jones Creek,

Delta State 120,000,000.00

Mr. Obinna

Offurum 08189205305

KDI - For

NDDC -

Phase I

Shoreline

Reclamation

Agge

Bayelsa 800,000,000.00

Mr. Karibi

Fubara 09093217074

Rivers State Shoreline

Reclamation Opobo Town 1,500,000,000.00

Ministry of

Environment N/A

RCC Sand Production for

Construction

Ikot Abasi

(Akwa Ibom) 148,000,000.00 N/A N/A

LCC Sand Production for

Construction

Elibrada,

Rivers State 120,000,000.00 N/A N/A

Dantata/

Dangote/

Dekeziar

Channel clearing for

Dangote Temporary

Jetty/ Sand

Production for

Construction

Lekki Free

Trade Zone,

Ibeju – Lekki,

Lagos State

187,500,000.00 N/A N/A

DREDGING PROFILE COMPLETED PROJECTS

CLIENT SCOPE OF WORK LOCATION CONTRACT

VALUE (NAIRA)

PROJECT

MANAGER

CONTACT

DETAILS

GP-V/Eroton –

Phase 1 Well Slot Dredging OML 18 32,000,000 N/A N/A

DREDGING PROFILE ONGOING PROJECTS

DREDGING PROFILE REGISTRATION

DPR – We have our permit to operate as an oil industry service company (Specialized

category- Dredging) from the Department of Petroleum Resources

NIMASA – We are duly registered with the Nigerian Maritime Administration and Safety

Agency