This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

ENSA successful works in components

of European Pressure Reactor

Olkiluoto 3 NPP

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

• Limonite Ring

• Pressure Equalization Ceiling

• Fixed Points with pipe penetrations (Fixed Points)

• Substructures in four LAR-WATERPOOLS (Hangers for inspection cages)

• KPL, KTA, Steel Wall andPlummet shieldings

• Fuel Transfer Tube shielding

ENSA successful works in components of

EPR Olkiluoto3NPP

Main Contracts Index

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

General Requirements Compliance

• Regulation: Finnish YVL Guides

• Building code: RakMk for steel structures, NationalBuilding Code of Finland (B7)

• Quality procedures: QR Doc 50 FIN005 (AREVA)

• Coating works: QR-FAB 03 FIN005 (AREVA)

• Materials compliance: Different Material Test Sheets(AREVA)

• Ancillary tools: EuroCode-3

• Safety Culture

• Compliance with RCC-M code requirements

• Compliance with ASME III code requirements

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

Limonite Ring for Olkiluoto 3 NPP

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

Limonite Ring for Olkiluoto 3 NPP

The Limonite Ring (LR) is a steel structure, located in the reactor pit between the wall openings of the reactor coolant lines (RCL) and the pool liner support.

Approx. ø9000 mm

Limonite Ringreinforced concrete

2nd phase concrete

RPV

RCL

reactor pit1st phase concrete

RPV insulation

ISI device

cavity seal ring

RPV closure head Limonite Ringlost formwork pool liner

Limonite Ring cross section

+7,44 m

+7,12 m

+6,44 m

Ø6080 mm

insulation (matresses)

L-shape profile

Ø6000 mm

Limonite Ring

Pool liner

RPV

Materials: Carbon Steel S355J2

Weight: 9Tm

Construction Code: EN

Safety Class EYT

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

•Beginning erection of works: September 2010

•End of works: April 2011

Limonite Ring for Olkiluoto 3 NPP

For this project ENSA is the designer and manufacturer of the following devices to ensure the quality of the component:

Welding Device:

Used for welding the 4 slices on site.

Stiffener:

To avoid deformations during introduction into the reactor pit.

Lifting Device:

Used to support the loads during pouring operations.

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

Pressure Equalization Ceiling for OL3 NPP

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

Pressure Equalization Ceiling for OL3 NPP

Location

(upper part of steam generator)

The pressure equalization ceiling consist of two steel structures.

During normal plant operation is ensuring the separation of ventilation between accessible and inaccessible part of containment.

Description

Materials: Carbon Steel S355J2Weight: 24 TmConstruction Code: ENSafety class 3

Beginning of erection works: Nov 2011

Forecasted end of works: Feb 2012

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

Pressure Equalization Ceiling for OL3 NPP

ENSA will perform the installation starting from pre-assembly pieces of the component, being adjusted on site, to achieve the requirement of the designer.

ENSA already has the necessary qualifications for these welding works on site according to European standards.

Manufacturing Installation

Transport

ENSA manufacturing process consist of all needed steps to guarantee the operation of the equipment including:

EngineeringPurchasingTestingQualificationsManufacturingInstallationMaintenance works

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

Fixed Points with Pipe Penetration for OL3

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

Steel Boxes (2) with Pipe Penetration for OL3

The function of SPEP is to serve as wall elements containing penetration sleeves formain piping branches on Safeguard Buildings

Main piping branches:oMain Steam Lines (MSL)oMain Feed Water Line (MFWL)

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

Materials: Carbon Steel S355J2Weight: 70 TmConstruction Code: ENSafety Class 2

Beginning of erection works: September 2009End of works: March 2010

Steel Boxes (2) with Pipe Penetration for OL3

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Substructures in four LAR-Waterpools for

OL3 NPP

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

Substructures in four LAR-Waterpools for

OL3 NPP

Provision and erection of the substructures in four LAR Waterpoolsfor use in the Olkiluoto 3 NPP

Engineering, drawings and documentation

Material procurement

Manufacturing

Welders Qualification

NDT (Non Destructive Tests)

Load Test

Delivery and Transport

Installation

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

Substructures in four LAR-Waterpools for

OL3 NPPMaterials: Stainless Steel material 1.4571Weight: approx.1 TmConstruction Code: ENSafety Class EYT

Beginning of erection works: September 2010End of works: December 2010

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

KPL, KTA, Steel Wall and Plummet

Shieldings for OL3 NPP

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

KPL, KTA, Steel Wall and Plummet

Shieldings for OL3 NPP

Provision and erection of shieldings for use in the Olkiluoto3 NPP.

Engineering, drawings and documentation

Material procurement

Manufacturing

Welders Qualification

NDT (Non Destructive Tests)

Delivery and Transport

Installation

Works involving the use, manipulation,

machining and coupling of Lead components

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

Materials: Carbon Steel S235J2, LeadConstruction Code: ENBeginning of erection works: December 2011Forecasted end of works: April 2012

KPL, KTA, Steel Wall and Plummet

Shieldings for OL3 NPP

KPL KTA Steel Wall Plummet

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

Fuel Transfer Tube Shielding for OL3

NPP

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

Engineering, drawings and documentation

Material procurement

Manufacturing

Welders Qualification

NDT (Non Destructive Tests)

Delivery and Transport

Erection

Fuel Transfer Tube Shielding for OL3 NPP

Works involving the use, manipulation, machining and coupling of lead components

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

Materials: Stainless Steel 316Ti, leadConstruction Code: ENBeginning of works: November 2011Forecasted end of works: February 2012

Erection sequence

Fuel Transfer Tube Shielding for OL3 NPP

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

Projects Localization in OL3

Reactor Building/Fuel BuildingFuel Transfer Tube Shielding

Reactor BuildingSteel Wall Shieldings

Nuclear Auxiliary BuildingPlummet Shielding

Reactor BuildingKTA Shieldings

Fuel BuildingKPL Shieldings

Safeguard BuildingsSubstructures in four LAR-WATERPOOLS

Safeguard BuildingsFixed Points with pipe penetrations

Reactor BuildingPressure Equalization Ceiling

Reactor BuildingLimonite Ring

BuildingComponent

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

Projects Localization in OL3

ShieldingsFuel Transfer Tube Shielding

Limonite RingPressureEq.Ceiling

Substructures in 4 WAR waterpools

Fixed PointFixed Point

1. Reactor Building

2. Fuel Building

3. Safeguard Building

4. Diesel Building

5. Nuclear Aux. Building

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

ERECTION WORKS – FIXED POINTS

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

ERECTION WORKS – FIXED POINTS

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

ERECTION WORKS – LIMONITE RING

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

ERECTION WORKS – LIMONITE RING

This document contains information proprietary to Equipos Nucleares, S.A. (Ensa) and shall not be disclosed or reproduced without written authorization of Ensa.

ERECTION WORKS IN OL3 NPP

EQUIPOS NUCLEARES S.A.

Oficina Central / Head Office:

José Ortega y Gasset 20-5º

28006 Madrid, Spain

Phone: +34 91 555 36 17

Fax: +34 91 556 31 49

commercial@ensa.es

Instalaciones / Facility:

Avda. Juan Carlos I, 8

39600 Maliaño, Cantabria, Spain

Phone: +34 942 20 01 01

Fax: +34 942 20 01 48

commercial@ensa.es

www.ensa.es