The document summarizes Ossama Ahmed Zainy Co. for Contracting's (OZEST) industrial services including decontamination, chemical cleaning, catalyst handling, bundle pulling, hydrojetting, and VOC and vapor emissions control. It details OZEST's partnership with Philip Services Corp to provide these specialized services to the oil, gas, and petrochemical industries in Saudi Arabia and other Gulf countries. OZEST aims to offer high quality and environmentally compliant services while promoting safety and employee welfare.

1. Decontamination (Life Gaurd™)
VOC, Vapor & Gas Emissions Control
Chemical Cleaning
Catalyst Handling
Hydraulic Bundle Pulling
Hydrojetting
Equipment Rental
Hydraulic Bolt Torquing

2. In early 1999, Ossama Ahmed Zainy Co. for Contracting (OZEST) And Philip Services Corp. (PSC) reached an
agreement to supply specialized industrial service operations throughout the Kingdom of Saudi Arabia, and
other Gulf Corporation (GCC) as well Egypt that PSC utilizes in the US. PSC will continue to provide operational
support for all activities while OZEST will supply local equipment, operational labor, and supervisory resources.
OZEST’s objective is to provide specialized industrial services, such as; Decontamination, Chemical Cleaning to
support the Oil and Gas and Petrochemical Industry. Ossama Ahmed Zainy Co. for Contracting was founded and
registered in Saudi Arabia.
With the continued growth of the company and ever-increasing demand for its
services. The Industrial Services Division further extended its services into Heat
Exchanger Services (incl. Bundle Pulling and Hydro jetting), Catalyst Handling
and Mechanical Works.
OZEST located its head office in Al-Khobar, Corniche District Gulf Star Building,
near Le Meridian Hotel, and branch office in Bahrain.
OZEST primary objective is to provide customers with the highest quality
services while promoting the best possible standards of employee welfare,
safety and environmental compliance.
OZEST HISTORY
VISION STATEMENT
OurGoals
To offer the highest level of service possible to our clients in terms of safety, speed, reliability & quality.
To treat each customer as special and offer tailor-made solutions/ services.

3. We are proud to be associated with the rapid growth within the Refining and
Petrochemical Industrial, Power Sectors and look forward to offering valuable
services in the years to come.
Over the years, OZEST has attained an excellent reputation and became the leader in the
supply of specialized Chemical Decontamination, Chemical Cleaning, Heat Exchanger and
other Industrial services to the Refinery and Petrochemical Industry in the Kingdom of
Saudi Arabia and GCC countries.
To incorporate newer environmental friendly technologies into our industrial services profile in our
endeavor to protect the environment.
To offer solutions to customers that reduce energy costs, unit downtime & extend the operation
of the equipment.
Ossama Ahmad Zainy
Chairman
Mikdad Mohilldean
General Manager

4. We are ISO certified

5. OurClients

6. CHEMICAL DECONTAMINATION
With PSC/OZEST Life GuardTM decontamination programs, benzene and other hazard associated with refinery
and petrochemical processing can be eliminated in a fraction of the time normally associated with a shutdown.
OZEST provides technical refinery expertise to enhance our turnkey service and to ensure that every detail is
properly addressed. The processes apply to crude, FCCU units, lube oil plants, ethylene olefins and butadiene
plants as well. Our combine unique, environmentally safe chemical products with state of the art mobile pumping
equipment&filtrationsystems.Furthermore,wecancustomizetheserviceforvariousplantsequipmentincluding
refinery distillation & fractionation towers, accumulators, drums, reactors, & exchangers. It also safely removes
Pyrophoric Iron Sulfides & residual H2S using second stage process that takes only 4-6 hours in most cases.
PSC/OZEST closed loop system Life GuardTM makes EPA & OHSAS
compliance much easier to achieve.
The major benefits:
Safe Man Entry without BA
Zero LEL
Zero H2S
Less than 0.5 ppm Benzene
No prolonged steaming out or Nitrogen purging required
No extensive mechanical cleaning required
Time saving
Pyrophoric materials will be oxidized
Partial scales removal bounded with hydrocarbon

7. OZEST offer more than a chemical-cleaning
vendor does. We take a comprehensive
approach as if the refinery belongs to
us. In general, the client will determine
what equipment within the unit is to be
decontaminated. OZEST will design a detailed
procedure with regards to the most cost-
effective method. OZEST walks every job
and with the continuous support of PSC
designs the most efficient circulation loops
to facilitate the decontamination of entire
unit. OZEST customers offer the best support
for the effectiveness of our decontamination
processes.
OZEST deliver decontamination chemistry
Life GuardTM both in the Liquid Phase and
the Vapor Phase. Life GuardTM hydrocarbon
decontamination formulation that is
environmentally safe, fully biodegradable and
compatible with all metallurgy. The specific
mode of application such as vapor phase or
liquid circulation, or a combination of the two,
is tailored during the site visit, where the exact
scope of work and availability of resources is
discussed in detail with the plant personnel.

8. CHEMICAL DECONTAMINATION
Vapor Phase Decontamination
Life GuardTM from Philip services (PSC) is a highly effective vapor phase decontamination product, as it has a
high solubility of Hydrocarbons in vapor phase, it can access surface and deposits that cannot be contacted by
liquid flow. Vapor phase application is equally effective for light end as well as heavy end products and offers
rapid decontamination (within 8 – 12 hours) with minimal effluent generation making it an increasingly popular
methodology with our clients.
Life GuardTM chemistry is entrained into a steam source. The steam carries the chemistry throughout the process
vessels. The solvent in the product vaporizes, dissolving the hydrocarbons as it proceeds over the vessel. The Life
GuardTM chemistry forms a strong emulsion with the hydrocarbons and then drained from the process vessels
with condensed steam. Residual chemical is steamed out, completing the decontamination cycle.

9. Liquid Phase Decontamination
Life GuardTM chemistry are exceptionally effective in removing both heavy end
hydrocarbons such as vacuum residue and asphalt and as well as light end
hydrocarbons such as benzene from the process vessels in refineries and
petrochemical plants.
A typical concentration of Life GuardTM for the process application is 0.5%
to 2% in water. During the decontamination process, the equipment will
be vented first to the flare system and afterward to the atmosphere.
This aqueous solution of Life GuardTM is circulated in a closed
loop through the plant process vessels and piping at 70⁰ to 90⁰
for 8 to 12 hours (wash cycle). In the wash cycle, Life GuardTM
forms a stable emulsion with the hydrocarbons present in
the plant equipment and piping. At the end of the cycle,
the emulsion is pump out of the system to complete the
Decontamination.
The effluent emulsion generated during the
decontamination is stored in a holding tank and is
then broken down using a demulsifier to allow
recovery of the hydrocarbon that is removed
from the process equipment. The subsequent
aqueous phase is discharged to the plants
API or waste treatment facility and the oil is
sent to slop tank for reprocessing.

10. CHEMICAL DECONTAMINATION
Successful Applications
OZEST has successfully applied Life GuardTM
in petrochemical and refinery system, treating
desalters,crudeunits,vacuumtowers,hydrotreaters,
hydrocrackers, visbreakers, isomerization units,
platformers and reformers, amine units, sour water
system, delayed cockers and ethylene compressors
and quench water systems.
Life GuardTM greatly reduces the time it takes to ensure
that benzene is reduced to less than 0.5 ppm and in doing
so reaches well below the Lower Explosion Level and
Personnel Exposure Limits for the light end distillates.
Steaming a large unit may take up to 5-6 days, but using
Life GuardTM system this is reduced to 12-24 hours.
This gives faster access to systems and increasing safety
and profitability.

11. Since 2000, OZEST has safely performed
various Decontamination jobs for
• Vacuum towers
• The cracked gas compressor system
• Asphalt tanks
• Quench water columns
• Crude towers
• Exchangers
• Tanks
• Re-boilers
• Fractionators
• Strippers
• Ethylene compressors
• Fin fan coolers
• Desalters

12. VOC, VAPOR & GAS EMISSIONS CONTROL
Volatile organic compounds (VOCs) are chemicals that constitute one of the primary
elements of air pollution in a wide range of industries – especially in petrochemical
processes that produce and use large amounts of solvents and volatile chemicals.
VOC emissions are significant greenhouse gases, and therefore regulated by
Royal Commission and General Authority of Meteorology and Environmental
Protection.
OZESTVOC,VAPOR&GASEMISSIONCONTROLTECHNOLOGYalsoremoves
hazardous inorganic gas Hydrogen Sulfide H2
S (irreversibly) and bad
odors in addition to the VOCs from a gas stream up to within the
allowablelimitsdefinedbytheenvironmentalregulatoryauthorities.
The chemicals used in our process are fully biodegradable and
environmental friendly.

13. The major applications for emission control are as follows.
• Filling of HC storage tanks.
• De-inventory of solvents to a temporary storage.
• HC Storage tank maintenance.
• Decommissioning activities.
• HC Waste handling operations.
The setup includes wet scrubbers and adsorption media filters for VOC and H2
S removal. The
equipment is portable and can be commissioned in few hours at the work site.

14. CHEMICAL CLEANING
In today’s industrial environment, maintenance & energy cost form a
large part of the operating cost. In case downtime and/or equipment
design does not permit mechanical cleaning, the most cost effective
solution is Chemical Cleaning.
OZEST's key is of providing quality chemical cleaning rest in the
engineered selection process. We have the largest variety of solvent
systems, including chelants, organic solvents, inhibitors, alkaline
cleaners, emulsions, organic acid, mineral acids, and detergents
from which to develop cost effective chemical cleaning processes.
Metallurgies & Others handled
• Admiralty Brass
• Copper
• Carbon steel
• Austenitic Stainless steels (300 series)
• Martensitic Stainless steels (400 series)
• Inconel
• Monel
• Titanium
• Zirconium
• Borosilicate Glass
Typical Applications:
• Boilers
• Piping
• Heat exchangers
• Evaporators
• Cooling water
systems & towers
• Reactor jackets
• Process vessels
Chemical Cleaning is proven, efficient & widely accepted method for removal of
deposits formed in various refineries, petrochemical plants, and power generation
plant equipment

15. There are two main types of acids used in dissolving contaminants or scales:
Minerals Acids Organic Acids
Hydrochloric Acid Citric Acid
Sulfamic Acid Ammoniated Citric Acid
Nitric Acid Oxalic Acid
Phosphoric Acid Glacial Acetic Acid
Sulfuric Acid
During the chemical cleaning various inhibitors are used. The inhibitors form a protective film on surface of metal
in order to protect parent metal from reacting with the acid. Inhibitors do not change the rate of reaction of acid
on the scale; they inhibit the metal from reacting with the acid. OZEST applies different types of inhibitors based
on the acid selection.
Advantages of Chemical Cleaning:
• It can be performed on site without disassembling & moving equipment, saving enormous time, labor &
associated costs.
• It eliminates the need for physical entry of personnel thus offering a much safer
alternative.
• It conditions the process surface to reduce future fouling.
• It can handle systems which are difficult to reach by other conventional cleaning
methods such as hydro jetting.
OZEST is fully equipped to handle all your chemical needs at a short notice with
Circulation Pumps rated from 400-1500 GPM @ up to 150 psi; Holding Tanks from
1,000-52,000 USG capacity; Chemical resistant, Rubber and Steel hoses, on site
laboratory services.

16. CATALYST HANDLING SERVICES
In 2004 Ossama A. Zainy Co. (OZEST), with the technical support of PSC –
INCAT, has invested in catalyst handling equipment and experienced staff
in order to carry out Catalyst Handling Services and related work.
Since 2005, OZEST performed safely various catalyst replacement
jobs under inert atmosphere for single and multi-bed reactors:
• Ammonia converters
• Platformer reactors
• Reformer reactors
• Methanator reactors
• Hydrogenation reactors
Desulphurizers •
Isomax reactors •
Polymerization reactors •
Sulfur convertors •
Gas Dehydrators •
Mercury Removal Units •

17. Detailed project summary can be submitted upon request.
The Catalyst Handling Services include:
• Isolation/blinding of equipment
• Removal /Installation of internals
• Vacuum unloading/gravity unloading of catalyst
• Catalyst skimming
• Pre-bagging, pre-socking, and screening of
catalyst
• Reactor neutralization
• Dense loading & Unidense loading
• Video inspection & DP testing
• Inert Entry

18. BUNDLE PULLING SERVICES
The Truck mounted bundle puller (TMBP) can be
quickly mobilized to the site and is a fully self-
contained bundle extractor to pull back horizontal
tubebundleswhicharelocatedattheheightbetween
680 and 6700 mm and with a maximum weight of
15T - 20T. Due to its unique and patented design, this
machine can also be used to transport the bundles
to the cleaning slab. Therefore, it is appreciated in all
the refineries and in the petrochemicals sector.
The main advantage is that during the pulling/
pushing operation you do not need a crane anymore
which will reduce your cost and bring your downtime
back to a minimum! Less organization is needed! The
truck is allowed to drive on the public road, therefore
making it a versatile and efficient tool. Even in the
difficult place to reach with the crane, e.g.; when
there is a pipe frame above the heated exchanger,
the Truck Mounted Bundle Puller can still do the job.
Once the extractor is in position and the butt plates
are positioned against the shell flange, the extractor
can exert a force of 50,000 kgf, enough to extract even
the most obstinate bundle. After the initial break out,
the hydraulic pulling car will be hooked to the pipe
plate and the extractor can pull out the bundle in
one continuous stroke. Once the bundle is resting on
the truck, it can be transported to the cleaning slab
and can be offloaded by crane.

19. In case the Truck Mounted Bundle Puller
cannot be used, OZEST can provide an Aerial
Mounted Bundle Puller. The hydraulic tube
bundle extractor is a self-contained unit,
which is easily lifted into position by one
crane. Once in position, and clamped to the
shell flange of an exchanger, the extractor
can exert a persuasive force of 50,000 kgf,
enoughtobreakouteventhemostobstinate
tube bundle.
OZEST Aerial Mounted Bundle Puller
is 8.0 M long and weighs 7 tons. It is
suitable to use for tube bundles with
a maximum diameter of 2.5 M; length
of 8.0 M & weight of up to 45 tons. (For
tube bundles with larger dimensions,
additional equipment/accessories are
to be added).

20. HYDRO JETTING SERVICES
Inordertomeetthedemandsoftheclientforinternalhigh-pressure
tube cleaning, OZEST has invested in specialized equipment.
With the use of advanced bundle cleaning equipment and
accessories OZEST can supply faster and safer hydro jetting
services to the refining and petrochemical industries.
OZEST provides hydro jetting services since 1999 with
pumps capable of producing pressures of 15,000 up to
20,000 psi, which is widely accepted by the industry
as a safe and economical means of cleaning.
All OZEST personnel are well trained and
experienced and fully equipped with the
necessary PPE to carry out the required hydro jetting services.
PSC/OZEST Heat Exchanger Services Includes:
a) Mechanical Work (blinding/de-blinding and opening/
the lance bed and pitch is not covered, it is very clear
to see for the operator if his lances are in the right
position.
The chains, which drive the lances are located in
a tray with a Teflon liner to avoid damage to the
metal and the chain is being tensioned by a tandem
construction, avoids the chain from slapping against
the metal.
The length of the lances which moves into the tubes
can be set by using sensors, to prevent lances from

21. closing heat exchangers).
b) Pulling and inserting tube bundles by means of hydraulic powered Bundle Puller.
c) Hydro jetting tubes, internally & externally.
d) Pressure testing.
All work is performed in compliance with strict safety rules & regulations.
IBC 5 Inside Bundle Cleaner:
In order to meet the increasing demands of internal tube cleaning tube cleaning, OZEST has invested in specially
designed Inside Bundle Cleaners. The IBC 5 is one of the fastest cleaning machines in the world today and has
been designed to clean a large number of bundles on the cleaning slab, during shutdowns. The IBC 5 can be fully
operated from inside the cabin by 1 operator, in a very simple but efficient way. From the cabin the operator can
control up/down/left/right movement with a simple joystick, the rollers can be turned, the outriggers can be
operated and the lance bed can be moved forward and backward ±60 cm. The lance bed, 10-meter-long T-bars
give a perfect guide for the lances and at the same time avoid dirt from remaining in the lance bed.
Manual adjustment of the pitch by the means of tightening nuts keeps the pitch fixed at all times and because
damaging and entering too far. Especially in cases with hairpin bundles (U-tubes), this can be very effective. At the
same time, the hydraulic power to move the lances forward can be adjusted, prevent the lances from breaking in
case of a blockage. In case there is a problem with the hose or lance, they can be replaced in a matter of minutes.
Safety
The IBC 5 is equipped with 2 emergency stops and with the lances the tubes all other hydraulic controls are
blocked. (Except for forwarding/backward movement). The cabin will look itself at any height in case of a failure
during lifting/lowering. The IBC 5 is in compliance with the latest EC regulations.
Efficiency
Duetotheweightofthemachineanditsspeedofthelances,andbundlesarecleanedfastthereforecost-effective.
All controls are located inside the cabin, next to the operator, to create an obstructed view and a comfortable
working position.

22. HYDRO JETTING SERVICES
Outside Bundle Cleaner
OZEST utilizes a specially designed Outside Bundle Cleaner to clean tube bundles in a safe and cost effective way.
The tube bundle is placed on two hydraulic driven heavy duty rollers which can be controlled from the cabin of
the operator. The bundles are being cleaned by means of a horizontal driven nozzle bar, which can also move
vertically and towards the bundle to get the best cleaning results. The right combination of water pressure (up
to 15,000 psi) and flow, removes scaling such as coke, polymers, etc. without the use of any additional cleaning
agents. The Outside Bundle Puller has a horizontal stroke of 9.50 M and the maximum height is 1.95 M. The speed
is adjustable from the cabin where the operator can sit comfortably and safely without being exposed to the dirt.

23. Safety
Because the operator can only operate the unit from inside the cabin, he will have protected from dirt or high
pressurewater.Anemergencyshutoffvalveisalsofittedinthecabin.TheOutsideBundleCleanerisincompliance
with the latest EC regulations.
Efficiency
Because of the variable speed control and the possibility to control all movements from cabin, the Outside
Bundle Cleaner is a simple and effective machine, which will prove to be very cost effective.
Hydro jetting Equipment:
Automated Cleaning:
OZEST utilizes high flow hydro jetting pumps. These units can produce pressures of up to 15,000-20,000 psi at a
flow of 40-200 lpm. The diesel driven unit is skid mounted for easy transportation/mobilization. All hydro jetting
pumps are equipped with all necessary accessories and safety devices in order to safely execute the required
jobs.

24. a) Steam Generator
(Boiler):
OZEST have portable steam generators
(boilers) with the capacities of 2,500 &
5,600 Kg/Hrs. @ up to 150 psi.
b) Frac Tank/ Holding Tanks:
Capacity of the Frac Tank / Holding Tanks is
from 21,000 – 52,000 USG. (80 cum – 200 cum)
Special designed powered landing gear
requires no winch for lifting. Any tractor
head can be connected to the frac tank for
transportation. Once the tank is on site, the
landing gear is lowered.
Equipment Rental Services
PSC/OZEST can supply various equipment to the industry, on rental basis.

25. The health and safety of our employees and the environment are our most important priorities.
Occupational injuries and illness result in unnecessary human suffering, reduced employee morale
and economic harm to employees and the company.
In the interest of protecting our employees, customers, and general public from losses due
toaccidentsandotherharmfulincidents,itisthepolicyofOZESTtodoeverythingwecan
to prevent personal injury and damage to property or the environment. Compliance
with all applicable local customers, government regulations relative to employee
safety and health is the starting point.
A safety program must be established at each operating location, including but
not limited to, service operations, construction, maintenance, shop and office
operations, material handling, housekeeping, machine and tool usage, vehicular operations, fire protection, and
public protection. The program must be in compliance with all applicable government regulations and company
policies.
Although specific members of the management team are designated by the General Manager to be responsible
for the development, evaluation, and implementation of OZEST safety program, safety is the responsibility of
each employee, and all OZEST is expected to make loss prevention and control an integral part of our work ethic.
OZEST is committed to setting a new standard for industry and being the safest, most stable, and most rewarding
place to work for the benefit of all of our employees, our customers, and the communities in which we live and
work. Together we shall THINK, COMMUNICATE, and WORK SAFELY, every minute, every hour, and every day.
Safety and Loss Control Statement
Main Office - Al Khobar
Contacts
General Manager Mikdad Mohilldean +966 504813697 mikdad.Mohilldean@ozest.com
BD & Technical Manager Frank van Kooten +966 505802417 frank.vankooten@ozest.com
Account Dept. Osama Ghanayam +966 559951550 osamasubhi.ghanayem@ozest.com
Government Relation Officer Ali Husein Al–Nasser +966 557500604 ali.alnasr@ozest.com
Branch Office - Bahrain - (+973) 397 90363 - Ossama A. Zainy Company for Contracting
P.O. Box 4583, Al–Khobar 31952 – Tel. : (+966 13) 896 8715 – Fax. : (+966 13) 896 8711

26. Ossama A. Zainy Co. for contracting
Al Khobar, Corniche District Gulf Star Building
Fourth Floor. Near Le Meridian Hotel
Al Khobar 4583 P.O. Box 31952 ,
Kingdom of Saudi Arabia