References, Reference List 2006-09-01

References, Reference List 2006-09-01

References, 2006-09-01 2 References, Reference List Staffan Granström, the president and one of the owners of, is Swedish citizen and has engineering degrees in mechanical and electrical technology and long experience from mechanical design, electrical design, calculation and process technology of electrical furnaces for metallurgical industries. Staffan Granström has 17 years of experience from employment for ASEA AB, now ABB, and 23 years of experience as consult for steel plants and suppliers of steel plant equipment all over the word and in industrial engineering especially of high temperature scrap preheating combined with post combustion of organic compounds, such as hydrocarbons, chlorinated aromatics and dioxins, development of computers programs and simulations of arc furnace operations. 1980 to 1984 Staffan Granström was member of the UIE Disturbances Committee for development of the international recognised flicker meter, the UIE meter. Apart of the enclosed personal references of Staffan Granström, he has with beginning of 1987, carried out a lot of consultant services for different steel plants in Italy, Spain, France, Belgium, Germany, Scandinavia and North America. The commissions have basically included production and cost evaluation studies around the electrical melt shop and dimensioning and basic engineering of furnace transformers with series reactors for high power and power factor operations evaluations of scrap preheating systems, feasibility studies comprising modernisation of steel plant with arc furnaces, high temperature scrap preheating, shaft furnaces, ladle furnaces, phase compensation, process control and gas cleaning systems for arc furnaces and ladle furnaces. These studies have led to substantial improvements in plant operation through new concepts on EAF revamp, guide lines on EAF operation together with Static Var Compensator (SVC) systems and diverse proposals in areas like preheating and precleaning of scrap for increased production, improved environment and increased safety at production of steel to improve plant efficiency under todays tight and restricted environment regulations.

References, 2006-09-01 3 The commissions, so far, have been: Impedance and Impedance Distribution for Secondary Systems to Arc Furnaces Danieli & C, SpA (Various projects) Italy 1991 Centro-Met AB (Various projects) Sweden 1991 Furnace Transformer and Series Reactor Ratings (Dimensioning, technical specifications) Acciaierie Ferriere del Tanaro SpA Italy 1987 Sidergurgica Sevillana S.A. Spain 1987 Accieries et Laminoirs de Paris (A.L.PA) France 1989 Ovako Steel Metallurgy AB Sweden 1989 Uddeholm Tooling AB Sweden 1989 Thy-Marcinelle S.A. Belgium 1990 Henningsdorfer Elektrostahlwerke GmbH Germany 1992 Danieli & C, SpA (Various projects) Italy 1991 Centro-Met AB (Varoius projects) Sweden 1991 Concast Standard AG Switzerland 1996 Keystone Steel & Wire USA 1997 CELSA Spain 1998 Det Danske Stålvalsevaerk A/S (DDS) Denmark 1998 Tehuantepec (HATCH Associates) Mexico 1999 Scana Björneborg AB Sweden 1999 ILVA SpA Italy 1999 Siderurgica Sevillana S.A. Spain 1999 SAM, Neuves-Maisons France 2001 Riva Acciaio SpA, Caronno Italy 2002 ABB Automation Technologies AB (Furnace Sweden 2004 project in Egypt) Series Reactor for Arc Furnaces (Dimensioning, technical descriptions, technical specifications, inquiry documents, investment and profitability calculations) AB Sandvik Steel Sweden 1989 Danieli & C, SpA (Various projects) Italy 1991 Centro-Met AB (Various projects) Sweden 1991 Fundia Special Bar AB Sweden 1996 Keystone Steel & Wire USA 1997 Nervacero S.A. Spain 1999 Acierie de L Atlantique S.A. France 2006

References, 2006-09-01 4 Electrical Systems, Furnace Transformers for Arc Furnaces and Ladle Furnaces (Function descriptions, technical specifications, inquiry documents, guarantee specifications) Ovako Steel Profiler AB Sweden 1989 Union Miniere S.A. Belgium 2000 SAM, Neuves-Maisons France 2001 Process Control of Arc Furnaces and Ladle Furnaces (Function descriptions, block diagrams, technical documentations, inquiry documents) AB Sandvik Steel Sweden 1989 Avesta AB, Avesta Jernverk Sweden 1989 Ovako Steel Profiler AB Sweden 1989 Furnace Condition and Loss Analysis for Arc Furnaces A.L.PA France 1988 Feasibility Study of Modernisation of Steel Plant comprising of revamp of electric arc furnace, new arc furnace, ladle furnace, high temperature scrap preheater, gas cleaning system and new melt shop Acciaierie Ferriere del Tanaro SpA Italy 1988 Basic Study of Electric Arc Furnace Installation in Integrated Steel Plant comprising study of different arc furnace concepts, different scrap preheating concepts, different SVC and VSC concepts for flicker reduction, sizing of furnace transformers, melting process and optimisation of rated power in SVC, etc.. ILVA S p A Italy 1999

References, 2006-09-01 5 Power and Energy Supply of Steel Plant (Feasibility study regarding power and energy supply to arc furnace, ladle furnace, rolling mill, phase compensation (SVC), high temperature scrap preheating and proposal of future development potentials etc.) Uddeholm Tooling AB Sweden 1989 Thy-Marcinelle S.A. Belgium 1990 Danieli & C SpA (Various projects) Italy 1991 Siderurgica Sevillana S.A. Spain 1994 Brandenburger Elektrostahlwerke GmbH Germany 1997 Henningsdorfer Elektrostahlwerke GmbH Germany 1997 Keystone Steel & Wire USA 1997 Fundia Bygg AS Norway 1997 Brandenburger Elektrostahlwerke GmbH Germany 1998 Henningsdorfer Elektrostahlwerke GmbH Germany 1998 Siderurgica Sevillana S.A. Spain 1999 Brandenburger Elektrostahlwerke GmbH Germany 2002 Henningsdorfer Elektrostahlwerke GmbH Germany 2002 Riva Acciaio S p A, Lesegno Italy 2002

References, 2006-09-01 6 Load Curves for Arc Furnaces Acciaierie Ferriere del Tanaro SpA Italy 1988 Acciaierie Ferriere de Caronno SpA Italy 1988 Siderurgica Sevillana S.A. Spain 1988 A.L.PA France 1989 Iton Seine S.A. France 1989 Thy-Marcinelle S.A. Belgium 1990 Officine é Fonderie Galtarossa SpA Italy 1991 Centro-Met AB (Various projects) Sweden 1991 Danieli & C, SpA (Various projects) Italy 1991 Centro-Met AB (Various projects) Sweden 1991 Acciaierie Ferriere del Tanaro SpA Italy 1994 Acciaierie Ferriere de Caronno SpA Italy 1994 Officine é Fonderie Galtarossa SpA Italy 1994 A.L.PA France 1994 Iton Seine S.A. France 1994 Siderurgica Sevillana S.A. Spain 1995 Thy-Marcinelle S.A. Belgium 1995 Brandenburger Elektrostahlwerke GmbH Germany 1995 Henningsdorfer Elektrostahlwerke GmbH Germany 1995 AB Sandvik Steel Sweden 1996 Fundia Bygg AS (Norsk Jernverk) Norway 1997 CELSA Spain 1998 Birmingham Steel Corporation, Jackson USA 1998 (ABB Industrial Systems Inc.) Birmingham Steel Corporation, Birmingham USA 1998 (ABB Industrial Systems Inc.) Acciaierie Ferriere del Tanaro SpA Italy 1998 Det Danske Stålvalsevaerk A/S (DDS) Denmark 1998 Scana Björneborg AB Sweden 1999 Nervacero S.A. Spain 1999

References, 2006-09-01 7 Melt down Programs and Furnace Operation Optimisation Iton-Seine S.A. France 1994 A.L.PA France 1994 Officine é Fonderie Galtarossa SpA Italy 1994 Acciaierie Ferriere del Tanaro SpA Italy 1994 Acciaierie Ferriere di Caronno SpA Italy 1994 Siderurgica Sevillana S.A. Spain 1995 Henningsdorfer Elektrostahlwerke GmbH Germany 1995 Brandenburger Elektrostahlwerke GmbH Germany 1995 Thy-Marcinelle S.A. Belgium 1995 AB Sandvik Steel Sweden 1995 Fundia Bygg AS Norway 1997 Thy-Marcinelle S.A. Belgium 1997 Keystone Steel & Wire USA 1997 CELSA Spain 1998 Birmingham Steel Corporation, Jackson USA 1998 (ABB Industrial Systems Inc.) Birmingham Steel Corporation, Birmingham USA 1998 (ABB Industrial Systems Inc.) Acciaierie Ferriere del Tanaro SpA Italy 1998 Det Danske Stålvalsevaerk A/S (DDS) Denmark 1998 Nortwestern Steel & Wire (HATCH Associates) USA 1998 Scana Björneborg AB Sweden 1999 Nervacero S.A. Spain 1999 Siderurgica Sevillana S.A. Spain 2000 Avesta Polarit AB, Avesta Sweden 2001 Global Steel Wire S.A. Spain 2001 Riva Acciaio S p A, Lesegno Italy 2002 Riva Acciaio S p A, Caronno Italy 2002 Avesta Polarit AB, Avesta Sweden 2003 Tremorfa Steelworks (CELSA UK) Wales 2003 ICDAS CELIC A.S., Istanbul Turkey 2004 OVAKO Smedjebacken AB Sweden 2005 Acierie de L Atlantique S.A. France 2006

References, 2006-09-01 8 Production and Production Costs Analysis Acciaierie Ferriere del Tanaro SpA Italy 1988 A.L.PA France 1988 Uddeholm Tooling AB Sweden 1989 Thy-Marcinelle S.A. Belgium 1990 Danieli & C, SpA (Various projects) Italy 1991 Henningsdorfer Elektrostahlwerke GmbH Germany 1992 Acciaierie Ferriere del Tanaro SpA Italy 1992 Siderurgica Sevillana S.A. Spain 1992 Iton Seine S.A. France 1992 Thy-Marcinelle S.A. Belgium 1993 Fundia Special Bar AB Sweden 1996 Concast Standard AG Switzerland 1996 Fundia Bygg AS (Norsk Jernverk) Norway 1997 Brandenburger Elektrostahlwerke GmbH Germany 1997 Henningsdorfer Elektrostahlwerke GmbH Germany 1997 Keystone Steel & Wire USA 1997 Acciaierie Ferriere del Tanaro SpA Italy 1998 Det Danske Stålvalsevaerk A/S (DDS) Denmark 1998 Northwestern Steel & Wire (HATCH Associates) USA 1998 Tehuantepec (HATCH Associates) Mexico 1999 Scana Björneborg AB Sweden 1999 ILVA S p A Italy 1999 Fundia Bygg AS (Norsk Jernverk) Norway 1999 Siderurgica Sevillana S.A. Spain 1999 Nedstaal B.V. (AGA AB) Netherlands 2000 Global Steel Wire S.A. Spain 2001 ABB Utilities AB (CELSA, Spain) Sweden 2001 Riva Acciaio S p A, Lesegno Italy 2002 Riva Acciaio S p A, Caronno Italy 2002 ABB Utilities AB (ACERALIA Olaberia, Spain) Sweden 2002 ABB Utilities AB (Global Steel Wire S.A, Spain) Sweden 2003 Tremorfa Steelworks (CELSA UK) Wales 2003 CELSA Huta Poland 2003 ICDAS CELIC A.S., Istanbul Turkey 2004 ABB Automation Technologies AB (Furnace Sweden 2004 project in Egypt) OVAKO Smedjebacken AB Sweden 2005 Acierie de L Atlantique S.A. France 2006

References, 2006-09-01 9 Heating Cycles for Ladle Furnace (Computer simulations) Acciaierie Ferriere del Tanaro SpA Italy 1988 Ovako Steel Profiler AB Sweden 1989 Uddeholm Tooling AB Sweden 1989 Thy-Marcinelle S.A. Belgium 1990 Danieli & C, SpA (Various projects) Italy 1991 Riva Acciaio S p A, Lesegno Italy 2002 SSAB Oxelösund AB (Team Met AB) Sweden 2005 Simulations of AC, DC Arc Furnaces, SVC Systems and Flicker Meters Thy-Marcinelle S.A. Belgium 1991 Acciaierie Ferriere del Tanaro SpA Italy 1991 Danieli & C, SpA (Various projects) Italy 1991 Brandenburger Elektrostahlwerke GmbH Germany 1992 Danieli & C, SpA (Various projects) Italy 1992 Centro-Met AB (Various projects) Sweden 1992 Thy-Marcinelle S.A. Belgium 1993 Fundia Special Bar AB Sweden 1996 Brandenburger Elektrostahlwerke GmbH Germany 1997 Henningsdorfer Elektrostahlwerke GmbH Germany 1997 Keystone Steel & Wire USA 1997 S.N. Longos S.A. Portugal 1997 Acciaierie Ferriere del Tanaro SpA Italy 1998 Det Danske Stålvalsevaerk A/S (DDS) Denmark 1998 Northwestern Steel & Wire (HATCH Associate) USA 1998 Tehuantepec (HATCH Associates) Mexico 1999 Riva Acciaio S p A, Lesegno Italy 1999 ILVA S p A Italy 1999 Nervacero S.A. Spain 1999 Siderurgica Sevillana S.A. Spain 1999 Avesta Polarit AB, Avesta Sweden 2001 ABB Utilities AB (CELSA, Spain) Sweden 2001 Brandenburger Elektrostahlwerke GmbH Germany 2002 Henningsdorfer Elektrostahlwerke GmbH Germany 2002 Riva Acciaio S p A, Lesegno Italy 2002 Riva Acciaio S p A, Caronno Italy 2002 ABB Utilities AB (ACERALIA Olaberia, Spain) Sweden 2002 ABB Utilities AB (Global Steel Wire S.A, Spain) Sweden 2003 ICDAS CELIC A.S., Istanbul Turkey 2004

References, 2006-09-01 10 Simulations of AC, DC Arc Furnaces, SVC Systems and Flicker Meters (Continue) OVAKO Smedjebacken AB Sweden 2005 SSAB Oxelösund AB (Team Met AB) Sweden 2005 Acierie de L Atlantique S.A. France 2006 Phase Compensation, Harmonic Filters (Dimensioning, technical descriptions, technical specifications, inquiry documents, investment and profitability calculations) AB Sandvik Steel Sweden 1989 Thy-Marcinelle S.A. Belgium 1990 A.L.PA France 1991 Danieli & C, SpA (Various projects) Italy 1991 Centro-Met AB (Various projects) Sweden 1991 Concast Standard AG Switzerland 1996 CELSA Spain 1998 Static Var Compensators (Dimensioning, technical specifications, inquiry documents, investments and profitability calculations, offer evaluations) Danieli & C, SpA (Various projects) Italy 1992- Acciaierie Ferriere di Caronno SpA Italy 1993 Thy-Marcinelle S.A. Belgium 1993 Siderurgica Sevillana S.A. Spain 1993 Concast Standard AG Switzerland 1996 Brandenburger Elektrostahlwerke GmbH Germany 1999 Henningsdorfer Elektrostahlwerke GmbH Germany 1999 Riva Acciaio S p A, Lesegno Italy 1999 ILVA S p A Italy 1999 Riva Acciaio S p A, Lesegno Italy 2001 Iton-Seine S.A. France 2001 Brandenburger Elektrostahlwerke GmbH Germany 2002 Henningsdorfer Elektrostahlwerke GmbH Germany 2002 Riva Acciaio S p A, Lesegno Italy 2002

References, 2006-09-01 11 Scrap Pre-Heating Systems (Evaluation of and technical advising for improvement of efficiency for Scrap Pre-Heating System) A.L.PA France 1988 Nervacero S.A. (Finger Shaft Furnace) Spain 1999 Scrap Pre-Heating Systems (Evaluation of the impact of different Scrap-Pre-Heating Systems on furnace operation, environment, production, production costs and investment benefit analysis) Keystone Steel & Wire USA 1997 ILVA S p A Italy 1999 Fundia Bygg AS (Norsk Jernverk) Norway 1999 CELSA Spain 2000 Avesta Polarit AB, Avesta Sweden 2001 High Temperature Scrap Pre-Heating/Pre-Cleaning Systems with Post Combustion of Hydrocarbon, Chlorinated Aromatics and Dioxins Fundia Bygg AS (Feasibility Study) Norway 1997 Keystone Steel & Wire (Feasibility Study) USA 1997 Riva Acciaio S p.a Italy 1999 CELSA Spain 2000 Riva Acciaio S p A, Verona Italy 2000 Riva Acciaio S p A, Lesegno Italy 2002 Riva Acciaio S p A, Caronno Italy 2002 OVAKO Steel AB Sweden 2003 MEFOS Sweden 2003 Avesta Polarit AB, Avesta Sweden 2003

References, 2006-09-01 12 Impact of Oxy-Fuel Burners, Oxygen Lance Systems and Coherent Jet Burners on Production and Off-Gas Systems in Furnace Plants (Simulations of oxygen use in furnaces and the impact on specific consumption, production, off-gas system and bag house) AGA AB Sweden 1999 Outokumpu Polarit Oy (AGA AB) Finland 1999 Nedstaal B.V. (AGA AB) Netherlands 2000 Siderurgica Sevillana S.A. Spain 2000 SAM, Neuves-Maisons France 2001 Global Steel Wire S.A. Spain 2001 Iton-Seine S.A. France 2001 Tremorfa Steelworks (CELSA UK) Wales 2003 CELSA Huta Poland 2003 OVAKO Smedjebacken AB Sweden 2005 Water Cooled Ducts and Pre Combustion Chamber for Arc Furnaces (Dimensioning and basic engineering) Ravne via Fläkt Industri AB Jugoslavia 1990 Off-Gas Systems for Furnace Processes (Simulation of impacts of changed furnace operation on off-gas system (water cooled and self cooled ducts and bag house) with regards to off-gas flow, off-gas temperature and off-gas flow) CELSA Spain 2000 Fundia Bygg AS Norway 2000 Nedstaal B.V. (AGA AB) Netherlands 2000 SAM, Neuves-Maisons France 2001 Global Steel Wire S.A. Spain 2001 Iton-Seine S.A. France 2001 OVAKO Steel AB Sweden 2003 Avesta Polarit, Avesta Sweden 2003 ICDAS CELIC A.S., Istanbul Turkey 2004 OVAKO Smedjebacken AB Sweden 2005 Gerdau Cosigua (ALSTOM Power) Brasil 2006

References, 2006-09-01 13 Off-Gas Systems for Furnace Processes (Basic engineering of ducts from canopy hood and furnace primary suction with dynamic simulations of melt shop ventilation) OVAKO Steel AB Sweden 2005 Gas Cleaning for Arc Furnaces and Ladle Furnaces (Function descriptions, technical specifications, inquiry documents, guarantee specifications) Acciaierie Ferriere del Tanaro SpA Italy 1988 Ovako Steel Profiler AB Sweden 1989 Water Cooled Duct System for a Wood Pelletizing Industry (Dimensioning and basic engineering) Infjärdens Värme AB (IVAB) Sweden 1997 Infjärdens Värme AB (IVAB) Sweden 2000 Optimisation of Refractory Linings in Combustion Chambers Kvaerner Chemetics AB Sweden 1998 Measuring of Network Disturbances and Harmonics with Analysis of Recorded Results ASSI Karlsborg AB (Pulp and Paper mill) Sweden 1989 SCA Nordliner AB (Kraftliner mill) Sweden 1989

References, 2006-09-01 14 Measuring of Short Circuit Impedances and Analysis in Arc Furnace Plants Brandenburger Elektrostahlwerke GmbH Germany 1992 Henningsdorfer Elektrostahlwerke GmbH Germany 1992 Danieli & C, SpA (Various projects) Italy 1992 Thy-Marcinelle S.A. Belgium 1993 Iton-Seine S.A. France 1994 A.L.PA France 1994 Officine é Fonderie Galtarossa SpA Italy 1994 Acciaierie Ferriere del Tanaro SpA Italy 1994 Acciaierie Ferriere di Caronno SpA Italy 1994 Siderurgica Sevillana S.A. Spain 1994 Brandenburger Elektrostahlwerke GmbH Germany 1994 Henningsdorfer Elektrostahlwerke GmbH Germany 1994 Henningsdorfer Elektrostahlwerke GmbH Germany 1995 AB Sandvik Steel Sweden 1995 Ivaco Rolling Mills Canada 1995 Keystone Steel & Wire USA 1997 Birmingham Steel Corporation, Jackson USA 1998 (ABB Industrial Systems Inc.) Birmingham Steel Corporation, Birmingham USA 1998 (ABB Industrial Systems Inc.) Avesta Polarit AB, Avesta Sweden 2001 Avesta Polarit AB, Avesta Sweden 2002

References, 2006-09-01 15 Development of Computer Programs and Calculation Methods Calculation of Impedance in Arc Furnaces and Ladle Furnaces Centro-Met AB Sweden 1990 Danieli & C, SpA Italy 1990 Evaluation of Impedance Tests with Error Analysis for Arc Furnaces and Ladle Furnaces Centro-Met AB Sweden 1990 Danieli & C, SpA Italy 1990 Load Parameters and Load Curves for Arc Furnaces and Ladle Furnaces Centro-Met AB Sweden 1990 Danieli & C, SpA Italy 1990 Production and Production Costs for Arc Furnaces Fläkt Industri AB Sweden 1990 Simulation of Scrap Preheating Systems Fläkt Industri AB Sweden 1990 ABB Fläkt Industri AB Sweden 1993 Dynamic Simulation of Arc Furnaces (AC and DC), Static Var Compensators and Flicker Meters Danieli & C, SpA Italy 1992 Centro-Met AB Sweden 1992 ABB Power System AB Sweden 1992 Siemens AG Germany 1994

References, 2006-09-01 16 Dynamic Simulation of Melting Cycle in Arc Furnaces HATCH Associates Consultants Inc. Canada, 1997 USA MEFOS Sweden 1997 Avesta Sheffield AB, Degerfors Sweden 1997 Det Danske Stålvalsevaerk A/S (DDS) Denmark 1997 Fundia Special Bar AB Sweden 1997 Concast Standard AG Switzerland, 1997 Italy Imatra Steel Oy Finland 1997 EraSteel Kloster AB Sweden 1997 AB Sandvik Steel Sweden 1997 Avesta Sheffield, Avesta Sweden 1997 AGA AB Sweden 1997 ALSTOM Power Italia S.p.A., Daneco Unit Italy 2000 Fundia Armeringsstål AS, Mo i Rana Norway 2001 Phase Compensation for Furnace Loads Danieli/Centro-Met Sweden 1997 Harmonic Current and Voltage Distribution, Filter and SVC Components Ratings Danieli/Centro-Met Sweden 1998 Dynamic Simulation of Off-Gas System in Arc Furnaces ALSTOM Power Italia S.p.A., Daneco Unit Italy 2000 Sizing of Heat Exchangers (Excel) Infjärdens Värme AB (IVAB) Sweden 2003

References, 2006-09-01 17 Components Air Cooled Scrap Bucket for High Temperature Scrap Preheating ABB Fläkt Industri AB (For test in Avesta, Degerfors) Sweden 1992 Cooling Blocks "MEFLINE" in Safety Zone in Arc Furnaces Acciaierie Ferriere di Caronno SpA Italy 1993 Cooling Blocks "MEFLINE" in Safety Zone in Arc Furnaces (Licence) Iton-Seine S.A. France 1994 A.L.PA France 1994 Officine é Fonderie Galtarossa SpA Italy 1994 Acciaierie Ferriere del Tanaro SpA Italy 1994 Siderurgica Sevillana S.A. Spain 1994 Thy-Marcinelle S.A. Belgium 1995 Henningsdorfer Elektrostahlwerke GmbH Germany 1995 Brandenburger Elektrostahlwerke GmbH Germany 1995 Water Cooled Dampers for High Temperature Gases Avesta Sheffield AB, Degerfors Sweden 1995 Low Heat Loss Water Cooled Panels ESSGEPAN AB Sandvik Steel (Test panel) Sweden 1996 Fundia Special Bar AB (Test panel) Sweden 1996 Scana Björneborg AB (Test panels) Sweden 1998 Union Miniere S.A. Belgium 2001 Project Management IUC Norrbotten AB (EPN Business Cluster) Sweden 2005-