Index. Contact information. Koseq B.V. Oosthavenzijde 5 P.O. Box ZG Puttershoek The Netherlands

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2 Index 1. Introduction 3 2. Brief history of Koseq 4 3. Innovations 4 4. Basics of rigid sweeping arm 6 5. The compact sweeping arm 7 6. The victory sweeping arm 9 7. Additional equipment 9 8. List of delivered systems 11 Contact information Koseq B.V. Oosthavenzijde 5 P.O. Box ZG Puttershoek The Netherlands Telephone Telefax Web: design@koseq.com File name: Date: Version: Brochure KQ /10/2012 V1.0

3 1. Introduction Koseq, based in Puttershoek, The Netherlands, is the inventor and market leader in the field of Rigid Sweeping Arm Systems. Koseq has sold to date more than 70 different systems to the Coast Guards of; The Netherlands, Germany, Spain, Turkey, EMSA, US response and salvage companies including international dredging companies and local authorities. Most of these systems are permanent installed on oil recovery vessels. Other systems are mobile units, they are stored ashore and are ready for immediate use by appointed and dedicated oil recovery vessels. The Koseq Rigid Sweeping Arm Systems are well proven systems, they are able to perform in harsh sea conditions and have proven reliability and efficiency during oil recovery operations such as the disasters with the following vessels: the Prestige, Sea Empress, Erika, Gulf War, Gulf of Mexico and others. EMSA, the European Maritime Safety Agency has listed and witnessed this in their independent report dealing with the oil recovery operation following on the wrecking of the Prestige fuel oil tanker in Northern Spain and the corresponding oil recovery of the very viscous fuel oil. Only vessels equipped with Koseq Rigid Sweeping Arm Systems, like the Arca, Rijndelta and Neukerk are able to recover substantial quantities of heavy oil from sea in harsh weather conditions. Analysis of vessel Oil Recovery Performance during the Prestige incident Source: EMSA The Prestige in its last hours The recovery vessel Ailette incident in difficult weather conditions during the Prestige incident

4 2. Brief history of Koseq Due to increased oil transport by tankers worldwide and the first large oil spill disaster of the Torrey Canyon 1967, the Dutch government aimed and decided to develop an effective tool capable of removal of large quantities oil from the seawater surface. In 1968, the first steps were taken and a cooperation was established between Rijkswaterstaat, TNO and Van der Sluijs & Kampers, and resulted in the design and construction of the initial prototype of the rigid sweeping arm. Gert Kampers; pioneer in oil sweep equipment and founder of Koseq The initial prototype of the Rigid Sweeping Arm A partnership between Hydrowega and Van der Sluijs & Kampers under the name Doseq was established in Doseq was found for the production and sales of sweeping arm systems, this cooperation was terminated in In the years after several large oil spills at sea occurred; the Sea Empress in 1996, the Erika in 1999 and the Prestige in During these spills the effectiveness of the rigid sweeping arm was proven and tough lessons were learned. The demand for gradually improved rigid sweeping arms was growing worldwide. The company Koseq, with the heritage of Doseq was founded in Nowadays, the Koseq company is the world leader in rigid oil sweep equipment and contributed in a large number of oil spills. Koseq supplied a large quantity of rigid sweeping arm systems. In 2010, Koseq was involved in the oil spill recovery of the Deep Horizon spill at the Mexican gulf. A total of 22 sweeping arm systems were supplied. Koseq assisted clients with the installation of the equipment and the know how for recovery of oil from sea. The Erika 1999 in its last hours Recovery of oil with the hopper dredger Cosmos during the oil spill of the Sea Empress 1996

5 3. Innovations Still even after many years of development, the research department of Koseq is continuous working to improve there products and keep them up to date. In the earlier days, research was achieved by trial and error via building prototypes. The prototypes were tested mounted on ships or with scale tests in test tanks. Nowadays sophisticated CFD computer programs are used, this dedicated software is capable of calculating and optimizing the flow pattern of the sweeping arm before an actual prototype is built. Hereafter, the prototype is tested in practice and its performance is evaluated. This design method gives maximum flexibility to the design process and guarantees optimal performance of the sweeping arms. Real world evaluation (actual oil recovery) is used as direct feedback to our design process. New developments are high on our priority list as well; transportable and versatile systems, easy to mobilise, they can be used on a wide range of vessels and under most severe conditions. In addition to the original design of the rigid sweeping arms, new systems such as the Compact Rigid Sweeping arm and the Victory Oil Sweeper were designed and developed and tested accordingly. Test tank facility with tow facility for evaluation and verification of C.F.D. computer simulations to provide practical feedback to our design process Computer CFD analyses of a sweeping arm Each sweeping arm and additional equipment is designed to perform in severe offshore conditions, each aspect of the sweeping arm is designed and reviewed to be "rough and lasting". This dictates that simplicity of sweeping arm systems is preferred above technical complexity. The oil recovery systems are often stored for longer periods, it is crucial that systems can be deployed immediately, with untouched and predictable reliability after a spill has occurred. Long term and durable performance is obtained by selection of available technologies, mechanical and hydraulic techniques are favorite, they are proven to be reliable and hardly sensitive to wear and tear. The nearly exponential demand of relative cheap and constant available energy to meet the growing demand to fulfil the countries in development such as China, India, Brazil and many other countries challenges the oil companies to search for and to explore new discovered deposits in environmental sensitive areas. To follow this trend, Koseq is exceptional focused on research and development of new methods and technologies to combat and to control oil spills in the extreme conditions such as they occur in deep sea conditions and the arctic and vulnerable areas. Our current portfolio includes a wide range of oil sweep equipment, additional equipment and tailor made oil recovery solutions. Koseq is able to offer expertise and consultancy related to oil sweep equipment, system integration, fluid dynamics and oil recovery technology.

6 4. Basics of rigid sweeping arm The specific gravity of oil is in general (much) lower as the specific gravity of water. Spilled oil spreads out over the sea surface in a thin layer. Such a thin layer of oil is very hard to separate from the under laying seawater, in particular in turbulent sea conditions. Koseq found a very effective way for oil spill removal Movement of a vertical plane at a desired speed through a seawater column with a small oil layer on top forces the oil molecules to intensify thereby increasing the oil layer thickness substantially in front of the vertical plane. The oil from a much thicker layer can be separated from seawater based on existing density difference technology. This principle is found most effective and is grateful imitated by our competitors. The vessel Arca of the Dutch coast guard during recovery of the oil from the Prestige The explanation and application of this principle sounds very simple, but one has to realise that the overall performance is strongly depending on small factors. With design improvements resulting from continuous research and many practical applications since 1968, Koseq remains the leader in its field. It has an extensive track record, proving it to deliver the optimum tool to combat oil spills. The Koseq rigid sweeping arm is a versatile mechanical oil recovery system. It is designed for virtually any type of propelled vessel but also can be used in stationary applications. The top layer of oil and water is picked up by the skirts mounted on the arm structure barrier and guided towards the separation and oil recovery unit equipment. The mixture of most oil but also some water is pumped to a storage tank or hopper where the oil is separated from the water by gravity. In this way, it can be preferably installed on existing tank ships, this without the need of extensive adaptations or modifications. Close-up of the oil collection box during the Deep Horizon spill at the Mexican gulf A tanker vessel contracted by EMSA equipped with sweeping arms Source: EMSA

7 The Koseq rigid sweeping arm is provided with a fixed sweeping fence with a built in weir type skimmer and pumping equipment. The sweeping arm is able to recover any type of surface pollutant with a lower density than water, the particle size does not obstruct the pump suction inlet. A remotely controlled self-cleaning debris screen is standard provided to remove debris such as seaweeds, wood, cans, dirt, etc. A compact hydraulically powered submersible pump is located in the separation and oil recovery unit.this pump transfers the recovered mixture to a tank or hopper onboard the vessel. The pump combines low weight with a large capability and has a conical high speed Archimedes screw to handle high viscosity oils even with viscosities over cst. Although the system uses water as a lubricating transport medium for extremely viscous oils, there is still a low percentage of water in the oil- water mixture present. The system is very flexible in terms of deployment, capacity and the operating simplicity. The trailing suction hopper dredger Mellina A vessel of opportunity equipped with sweeping arms during the Deep Horizon Spill in the Mexican Gulf Tank pontoons equipped with sweeping arms in front of push boats A vessel of the Spanish coast guard Don Inda Top view of the integrated weir skimmer with the hydraulic controlled functions

8 5. The compact sweeping arm For the use on smaller vessels, Koseq developed a new version of the rigid sweeping arm: the Compact sweeping arm. This type is shorter and lighter than the standard rigid sweeping arm. A small footprint enables the unit to store and perform on small vessels and to facilitate transportation by trucks and aircrafts. This makes this type compact sweep arm extremely suited for situations were quick oil recovery is required. Moving through the oil spill, the oil is guided by the Rigid Sweeping Arm skirts and forced to flow to the collection and separation chamber. The hydraulic submersible pump is directly placed behind the height adjustable weir bar and pumps the oil/water mixture directly to the storage tanks onboard the vessel. The pump, the height adjusted weir bar and the debris screen, are remotely operated by only one man. The Compact Rigid Sweeping arm is equipped with a pump in the oil collection chamber for recovery and discharging the oil to the ship. The Sepia recovering oil in the harbor of Rotterdam This compact sweeping arm is delivered in several sizes, and the basic function is similar to the other sweeping arm systems. A compact sweeping arm is mostly used for the recovery of oil from rivers, estuaries and deltas, but the system can also be used in offshore conditions. The new concept of the containerized and transportable "all in one" concept of the compact 5m The following standard options can be supplied: Brush skimmer for the recovery of thin layers of oil Hydraulic powerpacks (several classes) Dedicated hoisting equipment The integration of a brush skimmer in a compact 8 m sweeping arm developed for the recovery of thin layers of oil Bunker vessel Remedie equipped with compact sweeping arms

9 6. The victory sweeping arm A total new concept has been designed with all the advantages of our proven Koseq rigid sweeping arm but an even more flexible system: the Victory Oil Sweeper. This sweeping arm is symmetric designed and is configured around two floating adjustable arm sections with an adjustable angle, equipped with a centre positioned floatation section with integrated oil collection chamber. The major advantage of this type is that beside trailing alongside the vessel, this sweeping arm can also be pushed by a tug boat in front of the tug. Another advantage is that the arm can be trailed on both port- and starboard side of the vessel. These configurations increases the flexibility of the system substantially and enables a wide range of vessels that can be utilised for recovery of oil spills from rivers, estuaries, deltas and offshore. The victory oil sweeper trailed alongside a vessel The advantages of the Victory sweeping arm are: In addition to the standard towed configurations, this sweeping arm can also be operated pushing it in front of a tug, tanker or other type of vessel. The arms are foldable, relative less space on deck is required related to the existing rigid sweeping arm systems. Exchangeable collection chamber with different skimmer types (weir, brush, belt, etc.). The angle of the sweeping arm is step less adjustable this feature allows for an optimal match of sweeping arm configuration to the actual oil spill circumstances. In closed mode, the push boat is able to reach higher speed to get quick from slick to slick. The victory oil sweeper in front of a tug boat With the arm closed the vessel sails at high speed to the location of the oil spill Tests of the Victory Oil Sweeper X18 at the testing facility Ohmsett in the USA, during the Wendy Schmidt Oil Cleanup X-Challenge

10 7. Additional equipment Beside delivery of sweeping arms, Koseq also supplies a wide range of additional equipment for ships integration. This includes all the components required to modify a standard tanker vessel into dedicated oil recovery vessel. Koseq supplies a wide range of hydraulic powerpacks for the hydraulic power supply of the sweeping arms. The power packs can be built under several classes. Handling of the sweeping arm is one of the most critical aspects for deployment of systems at open sea. Koseq designed and fabricates dedicated handling cranes for the launch and recovery of sweeping arms. These cranes are equipped with catchers that keep the sweeping arm in position during manouvring the arm overboard and lowering the arm to thesea surface. Integration of an oil recovery system on an existing tanker vessel; System components: sweeping arms, cranes and explosion deliverable power packs. Additional equipment and services deliverable by Koseq: Diesel powerpack explosion proof Zone II Hydraulic powerpacks (several classes) Cranes and davits Tailor made handling equipment Integration solutions A wide variety of skimmers Storage trailers Automation, sensors and instrumentation Recovery solutions for debris and weeds Training Collection box with integrated belt skimmer Complete sweeping arm set stored ashore, ready for installation on a tanker vessel when a spill occurs

11 8. List of delivered systems Country Client Type Vessel Year The Netherlands Havenreinigings & Transportbedrijf 12 m arms Mobile 1972 The Netherlands Havenreinigings & Transportbedrijf 12 m arms Mobile 1974 The Netherlands Rijkswaterstaat 13,5 m arms Mobile 1975 The Netherlands Rijkswaterstaat 13,5 m arms Mobile 1976 The Netherlands Rijkswaterstaat 13,5 m arms Mobile 1977 The Netherlands Rijkswaterstaat 13,5 m arms Mobile 1978 The Netherlands Rijkswaterstaat 13,5 m arms Mobile 1979 The Netherlands Smit Internationale B.V. 13,5 m arms Mobile 1980 The Netherlands Rijkswaterstaat 13,5 m arms Volans 1981 The Netherlands Bos & Kalis 22 m arms Cosmos 1981 Germany Küstenwache 15 m arms Mellum 1982 The Netherlands Rijkswaterstaat 15 m arms Geopotus Germany Küstenwache 22 m arms Nordsee 1984 The Netherlands Rijkswaterstaat Oilcrab Mobile 1984 Norway Nordam Sefton Supporter 15 m arms Nordam Sefton Supp The Netherlands Rijkswaterstaat 15 m arms Mobile 1985 The Netherlands Rijkswaterstaat 15 m arms Smal Agt 1986 The Netherlands Van der Kamp B.V. 15 m arms Rijndelta 1986 The Netherlands Rijkswaterstaat Compact 5 Sepia 1986 Germany Küstenwache 15 m arms Scharhörn 1988 India Mobile system m arms Mobile 1988 The Netherlands Rijkswaterstaat 15 m arms Hein 1988 Brazil Mobile system m arms Mobile 1989 The Netherlands De Boer 15 m arms Lesse 1989 The Netherlands Rijkswaterstaat 15 m arms Heffesant 1990 The Netherlands Rijkswaterstaat 15 m arms Mitra 1990 The Netherlands Rijkswaterstaat Compact 5 Mobile 1990 The Netherlands Rijkswaterstaat 15 m arms Cornelia 1991 Belgium De Nul 15 m arms DN The Netherlands Rijkswaterstaat 15 m arms Terschelling 1993 The Netherlands Rijkswaterstaat 15 m arms Waker 1994 The Netherlands Rijkswaterstaat 15 m arms Zirfea 1995 The Netherlands Wijsmuller / Muller Terneuzen 15 m arms Mobile 1996 The Netherlands Rijkswaterstaat 15 m arms Arca 1998 Germany Küstenwache 15 m arms Neuwerk 1999 France Bourbon Offshore 12 m arms Alcyon 2003 France Bourbon Offshore 12 m arms Ailette 2003 Iran Ports & Shipping Organization 12 m arms Yasin 2004 Spain Spanish Navy: m arms Tarifa (P64) 2004 The Netherlands Rijkswaterstaat 12 m arm Mellina 2004 Belgium De Cloedt m arm Interballast Spain Sasemar 12 m arms Luz de Mar 2005 Spain Sasemar 12 m arms Miguel de Cervantes 2005 Germany Küstenwache 10 m arms Lune Plate 2006 Malta Tank Ship Management Ltd. 12 m arms Mistra Bay 2006 Spain Sasemar 15 m arms Don Inda 2006 Spain Sasemar 15 m arms Clara Campoamor 2006 The Netherlands Rijkswaterstaat 12 m arm Rio 2006 Malta Falzon Service Station Ltd. 15 m arms Santa Maria 2007 Great Britain James Fisher 15 m arms Forth/Galway/Mersey Fisher 2008 Greece EPE 15 m arms Aktaia OSRV 2008 Malta Tank Ship Management Ltd. 12 m arms Salina Bay 2008 Spain Sasemar 15 m arms Urania Mella 2008 Turkey Istanbul Municipality Victory Oil Sweeper Mavi Deniz 2008 Belgium DC International 12 m arms Interballast Belgium DC International 12 m arms DC Vlaanderen Greece Aegean Bunkering 15 m arms Sara 2010 The Netherlands Rijkswaterstaat Compact 8 3x) Mobile 2010 USA T & T Marine Salvage Inc. 15 m arms 11x) Mobile 2010 Vietnam Coast Guard 10 m arms Soscrem 2010 Brazil Petrobras Victory Oil Sweeper Mobile 2011 Great Britain EMSA 15 m arms Fisher 2012

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